{"title":"Prop Nuts \u0026 Kits","description":"","products":[{"product_id":"sierra-prop-nut-kit-18-3733","title":"OMC SX Cobra Prop Nut Kit | Sierra 18-3733","description":"\u003ch2\u003eOMC SX Cobra Prop Nut Kit | Sierra 18-3733\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eOMC SX Cobra Prop Nut Kit | Sierra 18-3733\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSierra 18-3733 Prop Nut Kit\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOMC SX Cobra Prop Nut Kit\u003c\/li\u003e\n\u003cli\u003eFits OMC SX Cobra\u003c\/li\u003e\n\u003cli\u003eContains 18-4194 spacer, 18-3708-1 nut and keeper and 18-3741 cotter pin\u003c\/li\u003e\n\u003cli\u003eReplaces Volvo Penta 3850984, 3852350\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":38043152744643,"sku":"SIERRA-18-3733","price":26.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/OMC-SX-Cobra-Prop-Nut-Kit-Sierra-18-3733.jpg?v=1776954558"},{"product_id":"volvo-propeller-nut-3851569","title":"Propeller Nut | Volvo Penta 3851569","description":"\u003ch2 class=\"page-title\"\u003e\u003cspan class=\"base\" data-ui-id=\"page-title-wrapper\"\u003ePropeller Nut | Volvo Penta 3851569\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"page-title\"\u003e\u003cspan class=\"base\" data-ui-id=\"page-title-wrapper\"\u003ePropeller Nut | Volvo Penta 3851569\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVOLVO Propeller Nut 3851569\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Volvo Penta","offers":[{"title":"Default Title","offer_id":38043645968579,"sku":"VOLVO-3851569","price":72.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Propeller-Nut-Volvo-Penta-3851569.jpg?v=1776962771"},{"product_id":"sierra-brass-castle-washer-18-3714","title":"Mercruiser Brass Castle Washer | Sierra 18-3714","description":"\u003ch2\u003eMercruiser Brass Castle Washer | Sierra 18-3714\u003c\/h2\u003e\n\u003cp\u003eMercruiser Brass Castle Washer | Sierra 18-3714\u003c\/p\u003e\n\u003cp\u003e \u003cspan\u003eSierra 18-3714 Brass Castle Washer\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMercruiser Brass Castle Washer\u003c\/li\u003e\n\u003cli\u003eFits Mercruiser Alpha and Bravo I stern drives without Flo-Torq II Hub\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury 12-31211A2\u003c\/li\u003e\n\u003cli\u003eReplaces Mallory 9-73902\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":38044065071299,"sku":"SIERRA-18-3714","price":10.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Mercruiser-Brass-Castle-Washer-Sierra-18-3714.jpg?v=1776967840"},{"product_id":"volvo-prop-nut-21631162","title":"Prop Nut | Volvo 21631162","description":"\u003ch2\u003eProp Nut | Volvo 21631162\u003c\/h2\u003e\n\u003cp\u003eProp Nut | Volvo 21631162\u003c\/p\u003e\n\u003cp\u003eVolvo Prop Nut 21631162\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProp Nut\u003c\/li\u003e\n\u003cli\u003eReplaces Volvo 3851341\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Volvo Penta","offers":[{"title":"Default Title","offer_id":38044269969603,"sku":"VOLVO-21631162","price":52.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Prop-Nut-Volvo-21631162.jpg?v=1776972669"},{"product_id":"mercruiser-prop-nut-sierra-18-3700","title":"Mercruiser Prop Nut | Sierra Marine Products 18-3700","description":"\u003ch2\u003eMercruiser Prop Nut | Sierra Marine Products 18-3700\u003c\/h2\u003e\n\u003cp\u003eMercruiser Prop Nut | Sierra Marine Products 18-3700\u003c\/p\u003e\n\u003cp\u003eSierra Marine Products - Mercruiser Prop Nut | 18-3700\u003c\/p\u003e\n\u003cp\u003eSierra Marine Parts 18-3700 Prop Nut\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMercruiser Prop Nut\u003c\/li\u003e\n\u003cli\u003e3\/4\"-20 thread\u003c\/li\u003e\n\u003cli\u003e1 1\/16\" wrench\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury 11-52707, 11-52707Q1\u003c\/li\u003e\n\u003cli\u003eReplaces Pleasurecraft Marine R017066\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eEach Sierra Marine product meets or exceeds the original equipment part it replaces\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003cp\u003eSIERRA has a 58-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. In 2022, we expanded the scope of the SIERRA brand to include a wide range of products for the aftermarket boating business, as well as products for land-based applications.\u003c\/p\u003e\n\u003cp\u003eThe SIERRA brand encompasses the full SIERRA Marine product lines, as well as expansive marine brands formerly known as Shields and Moeller. The new SIERRA Brand umbrella will also include the Prime Line brand for ATV\/UTV and outdoor power equipment markets, along with additional aftermarket parts and accessories for land-based applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA\u003c\/strong\u003e \u003cstrong\u003eGlobal Brand\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn all markets for land and sea, the SIERRA brand stands for time-proven aftermarket products, built with quality and backed by the industry’s leading customer support and service. Sierra is continuously innovating new products and technologies to anticipate and solve customer needs.\u003c\/p\u003e\n\u003cp\u003eOne of the most important aspects of owning a boat is keeping the engine well-maintained. Whether you own a new Mercury® Outboard or an old OMC® Sterndrive, Sierra Marine offers a vast selection of boat parts to keep you moving. A properly running engine is essential for a safe and enjoyable boating experience. Luckily, with a little bit of regular care, it's easy to keep your boat engine in good shape.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA FEW THINGS TO KEEP AN EYE ON:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL LINES\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck your boat's fuel lines regularly for cracks, leaks or other damage. Today's fuel can be hard on fuel systems. Regular checks can ensure that you do not run into any issues when you least expect them. If you notice any damage, replace the fuel line immediately.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePRIMER BULBS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck the primer bulbs on your engine before each use. Similar to fuel lines, primer bulbs may suffer from exposure to Ethanol based fuel. A quick replacement of an old primer bulb is a simple way to eliminate any potential problems. If the bulb is hard or cracked, replace it.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL FILTERS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIt's also important to check and replace your fuel filters regularly. Clogged or dirty fuel filters can cause all sorts of problems, including reduced engine power and poor fuel economy. Fuel water separating filters take engine protection to another level by removing water deposits that might enter the fuel system. Sierra's fuel water separating filters are a perfect solution for a fuel filter replacement.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSPARK PLUGS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eInspect your spark plugs yearly and clean or replace them as needed. Carbon build up on the electrodes limit the spark plug's ability to efficiently produce a spark. This could cause you to experience reduced gas mileage, poor acceleration, hard starts, engine misfires and rough idling. Checking your plugs in the spring to ensure they are ready for boating season and can possibly help identify hidden problems within your engine. This is an important step in keeping your engine running at peak performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eOIL\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eOne of the most important things you can do for your boat engine is to change the oil regularly. Check the oil level in your engine every time you take the boat out for the day. If it's low, add more oil. Also, keep an eye on oil quality. Using a high quality engine oil offered on sierraparts.com you can be sure that you are giving your engine the best protection against the harsh marine environment. If the appearance of the oil turns milky in color, this could indicate that you have water intrusion into your engine and should be addressed immediately. Be sure to check your owner's manual to find out what type of oil is best for your engine.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eGEAR LUBE\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAnother important aspect of boat engine maintenance is changing the gear lube. Your lower unit has several gears that rely on quality gear lubes to minimize friction and overheating. Over time, lower units can become susceptible to leaks and allow water to enter, and mix with the gear lube. This will greatly reduce the gear lube's ability to maintain proper lubrication and protect your gears from damage. Regular inspection can help you identify leaks early and reduce repair costs. This should be done according to the manufacturer's recommendations.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBATTERY\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBoat batteries are essential for starting your engine and powering accessories. Most marine batteries are lead-acid batteries and require special care. Check the battery regularly for corrosion on the terminals, which can be cleaned with a mixture of water and baking soda. If the battery is more than three years old, it's probably time to replace it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKEEP YOUR ENGINE HAPPY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy following these tips, you can help keep your boat engine in good working order. Regular maintenance will prolong the life of your engine and help ensure that it runs smoothly when you need it.\u003c\/p\u003e\n\u003cp\u003eIf you need help with part identification, feel free to contact us for more information.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":41993141846211,"sku":"SIERRA-18-3700","price":13.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Mercruiser-Prop-Nut-Sierra-Marine-Products-18-3700.jpg?v=1776975558"},{"product_id":"mercruiser-bravo-iii-rear-prop-nut-kit-sierra-18-3756","title":"Mercruiser Bravo III Rear Prop Nut Kit | Sierra 18-3756","description":"\u003ch2\u003eMercruiser Bravo III Rear Prop Nut Kit | Sierra 18-3756\u003c\/h2\u003e\n\u003cp\u003eMercruiser Bravo III Rear Prop Nut Kit | Sierra 18-3756\u003c\/p\u003e\n\u003cp\u003eSierra Mercruiser Bravo III Rear Prop Nut Kit | 18-3756\u003c\/p\u003e\n\u003cp\u003eSierra 18-3756 Prop Nut Kit\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMercruiser Bravo III Rear Prop Nut Kit\u003c\/li\u003e\n\u003cli\u003eFits Mercruiser Bravo III stern drives\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eEach Sierra Marine product meets or exceeds the original equipment part it replaces\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003cp\u003eSIERRA has a 58-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. In 2022, we expanded the scope of the SIERRA brand to include a wide range of products for the aftermarket boating business, as well as products for land-based applications.\u003c\/p\u003e\n\u003cp\u003eThe SIERRA brand encompasses the full SIERRA Marine product lines, as well as expansive marine brands formerly known as Shields and Moeller. The new SIERRA Brand umbrella will also include the Prime Line brand for ATV\/UTV and outdoor power equipment markets, along with additional aftermarket parts and accessories for land-based applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA\u003c\/strong\u003e \u003cstrong\u003eGlobal Brand\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn all markets for land and sea, the SIERRA brand stands for time-proven aftermarket products, built with quality and backed by the industry’s leading customer support and service. Sierra is continuously innovating new products and technologies to anticipate and solve customer needs.\u003c\/p\u003e\n\u003cp\u003eOne of the most important aspects of owning a boat is keeping the engine well-maintained. Whether you own a new Mercury® Outboard or an old OMC® Sterndrive, Sierra Marine offers a vast selection of boat parts to keep you moving. A properly running engine is essential for a safe and enjoyable boating experience. Luckily, with a little bit of regular care, it's easy to keep your boat engine in good shape.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA FEW THINGS TO KEEP AN EYE ON:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL LINES\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck your boat's fuel lines regularly for cracks, leaks or other damage. Today's fuel can be hard on fuel systems. Regular checks can ensure that you do not run into any issues when you least expect them. If you notice any damage, replace the fuel line immediately.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePRIMER BULBS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck the primer bulbs on your engine before each use. Similar to fuel lines, primer bulbs may suffer from exposure to Ethanol based fuel. A quick replacement of an old primer bulb is a simple way to eliminate any potential problems. If the bulb is hard or cracked, replace it.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL FILTERS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIt's also important to check and replace your fuel filters regularly. Clogged or dirty fuel filters can cause all sorts of problems, including reduced engine power and poor fuel economy. Fuel water separating filters take engine protection to another level by removing water deposits that might enter the fuel system. Sierra's fuel water separating filters are a perfect solution for a fuel filter replacement.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSPARK PLUGS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eInspect your spark plugs yearly and clean or replace them as needed. Carbon build up on the electrodes limit the spark plug's ability to efficiently produce a spark. This could cause you to experience reduced gas mileage, poor acceleration, hard starts, engine misfires and rough idling. Checking your plugs in the spring to ensure they are ready for boating season and can possibly help identify hidden problems within your engine. This is an important step in keeping your engine running at peak performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eOIL\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eOne of the most important things you can do for your boat engine is to change the oil regularly. Check the oil level in your engine every time you take the boat out for the day. If it's low, add more oil. Also, keep an eye on oil quality. Using a high quality engine oil offered on sierraparts.com you can be sure that you are giving your engine the best protection against the harsh marine environment. If the appearance of the oil turns milky in color, this could indicate that you have water intrusion into your engine and should be addressed immediately. Be sure to check your owner's manual to find out what type of oil is best for your engine.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eGEAR LUBE\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAnother important aspect of boat engine maintenance is changing the gear lube. Your lower unit has several gears that rely on quality gear lubes to minimize friction and overheating. Over time, lower units can become susceptible to leaks and allow water to enter, and mix with the gear lube. This will greatly reduce the gear lube's ability to maintain proper lubrication and protect your gears from damage. Regular inspection can help you identify leaks early and reduce repair costs. This should be done according to the manufacturer's recommendations.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBATTERY\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBoat batteries are essential for starting your engine and powering accessories. Most marine batteries are lead-acid batteries and require special care. Check the battery regularly for corrosion on the terminals, which can be cleaned with a mixture of water and baking soda. If the battery is more than three years old, it's probably time to replace it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKEEP YOUR ENGINE HAPPY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy following these tips, you can help keep your boat engine in good working order. Regular maintenance will prolong the life of your engine and help ensure that it runs smoothly when you need it.\u003c\/p\u003e\n\u003cp\u003eIf you need help with part identification, feel free to contact us for more information.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":41993157574851,"sku":"SIERRA-18-3756","price":70.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Mercruiser-Bravo-III-Rear-Prop-Nut-Kit-Sierra-18-3756.jpg?v=1776975561"},{"product_id":"mercruiser-bravo-iii-rear-tab-washer-sierra-18-3787","title":"Mercruiser Bravo III Rear Tab Washer | Sierra 18-3787","description":"\u003cp\u003eMercruiser Bravo III Rear Tab Washer | Sierra 18-3787\u003c\/p\u003e\n\u003ch2\u003eSierra Mercruiser Bravo III Rear Tab Washer | 18-3787\u003c\/h2\u003e\n\u003cp\u003eSierra 18-3787 Bravo III Rear Tab Washer\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMercruiser Bravo III Rear Tab Washer\u003c\/li\u003e\n\u003cli\u003eFor Mercruiser Bravo III stern drives\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury 805101T\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eEach Sierra Marine product meets or exceeds the original equipment part it replaces\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003cp\u003eSIERRA has a 58-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. In 2022, we expanded the scope of the SIERRA brand to include a wide range of products for the aftermarket boating business, as well as products for land-based applications.\u003c\/p\u003e\n\u003cp\u003eThe SIERRA brand encompasses the full SIERRA Marine product lines, as well as expansive marine brands formerly known as Shields and Moeller. The new SIERRA Brand umbrella will also include the Prime Line brand for ATV\/UTV and outdoor power equipment markets, along with additional aftermarket parts and accessories for land-based applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA\u003c\/strong\u003e \u003cstrong\u003eGlobal Brand\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn all markets for land and sea, the SIERRA brand stands for time-proven aftermarket products, built with quality and backed by the industry’s leading customer support and service. Sierra is continuously innovating new products and technologies to anticipate and solve customer needs.\u003c\/p\u003e\n\u003cp\u003eOne of the most important aspects of owning a boat is keeping the engine well-maintained. Whether you own a new Mercury® Outboard or an old OMC® Sterndrive, Sierra Marine offers a vast selection of boat parts to keep you moving. A properly running engine is essential for a safe and enjoyable boating experience. Luckily, with a little bit of regular care, it's easy to keep your boat engine in good shape.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA FEW THINGS TO KEEP AN EYE ON:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL LINES\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck your boat's fuel lines regularly for cracks, leaks or other damage. Today's fuel can be hard on fuel systems. Regular checks can ensure that you do not run into any issues when you least expect them. If you notice any damage, replace the fuel line immediately.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePRIMER BULBS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck the primer bulbs on your engine before each use. Similar to fuel lines, primer bulbs may suffer from exposure to Ethanol based fuel. A quick replacement of an old primer bulb is a simple way to eliminate any potential problems. If the bulb is hard or cracked, replace it.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL FILTERS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIt's also important to check and replace your fuel filters regularly. Clogged or dirty fuel filters can cause all sorts of problems, including reduced engine power and poor fuel economy. Fuel water separating filters take engine protection to another level by removing water deposits that might enter the fuel system. Sierra's fuel water separating filters are a perfect solution for a fuel filter replacement.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSPARK PLUGS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eInspect your spark plugs yearly and clean or replace them as needed. Carbon build up on the electrodes limit the spark plug's ability to efficiently produce a spark. This could cause you to experience reduced gas mileage, poor acceleration, hard starts, engine misfires and rough idling. Checking your plugs in the spring to ensure they are ready for boating season and can possibly help identify hidden problems within your engine. This is an important step in keeping your engine running at peak performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eOIL\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eOne of the most important things you can do for your boat engine is to change the oil regularly. Check the oil level in your engine every time you take the boat out for the day. If it's low, add more oil. Also, keep an eye on oil quality. Using a high quality engine oil offered on sierraparts.com you can be sure that you are giving your engine the best protection against the harsh marine environment. If the appearance of the oil turns milky in color, this could indicate that you have water intrusion into your engine and should be addressed immediately. Be sure to check your owner's manual to find out what type of oil is best for your engine.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eGEAR LUBE\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAnother important aspect of boat engine maintenance is changing the gear lube. Your lower unit has several gears that rely on quality gear lubes to minimize friction and overheating. Over time, lower units can become susceptible to leaks and allow water to enter, and mix with the gear lube. This will greatly reduce the gear lube's ability to maintain proper lubrication and protect your gears from damage. Regular inspection can help you identify leaks early and reduce repair costs. This should be done according to the manufacturer's recommendations.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBATTERY\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBoat batteries are essential for starting your engine and powering accessories. Most marine batteries are lead-acid batteries and require special care. Check the battery regularly for corrosion on the terminals, which can be cleaned with a mixture of water and baking soda. If the battery is more than three years old, it's probably time to replace it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKEEP YOUR ENGINE HAPPY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy following these tips, you can help keep your boat engine in good working order. Regular maintenance will prolong the life of your engine and help ensure that it runs smoothly when you need it.\u003c\/p\u003e\n\u003cp\u003eIf you need help with part identification, feel free to contact us for more information.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":41993157836995,"sku":"SIERRA-18-3787","price":30.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Mercruiser-Bravo-III-Rear-Tab-Washer-Sierra-18-3787.jpg?v=1776975564"},{"product_id":"mercruiser-bravo-ii-tab-washer-10-pack-sierra-18-3788-9","title":"Mercruiser Bravo II Tab Washer 10 Pack | Sierra 18-3788-9","description":"\u003cp\u003eMercruiser Bravo II Tab Washer 10 Pack | Sierra 18-3788-9\u003c\/p\u003e\n\u003ch2\u003eSierra Mercruiser Bravo II Tab Washer 10 Pack | 18-3788-9\u003c\/h2\u003e\n\u003cp\u003eSierra 18-3788-9 Tab Washer 10 Pack\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMercruiser Bravo II Tab Washer 10 Pack\u003c\/li\u003e\n\u003cli\u003eFor Mercruiser Bravo II stern drives\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury 14-34817\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eEach Sierra product meets or exceeds the original equipment part it replaces\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003cp\u003eSIERRA has a 58-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. In 2022, we expanded the scope of the SIERRA brand to include a wide range of products for the aftermarket boating business, as well as products for land-based applications.\u003c\/p\u003e\n\u003cp\u003eThe SIERRA brand encompasses the full SIERRA Marine product lines, as well as expansive marine brands formerly known as Shields and Moeller. The new SIERRA Brand umbrella will also include the Prime Line brand for ATV\/UTV and outdoor power equipment markets, along with additional aftermarket parts and accessories for land-based applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA\u003c\/strong\u003e \u003cstrong\u003eGlobal Brand\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn all markets for land and sea, the SIERRA brand stands for time-proven aftermarket products, built with quality and backed by the industry’s leading customer support and service. Sierra is continuously innovating new products and technologies to anticipate and solve customer needs.\u003c\/p\u003e\n\u003cp\u003eOne of the most important aspects of owning a boat is keeping the engine well-maintained. Whether you own a new Mercury® Outboard or an old OMC® Sterndrive, Sierra Marine offers a vast selection of boat parts to keep you moving. A properly running engine is essential for a safe and enjoyable boating experience. Luckily, with a little bit of regular care, it's easy to keep your boat engine in good shape.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA FEW THINGS TO KEEP AN EYE ON:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL LINES\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck your boat's fuel lines regularly for cracks, leaks or other damage. Today's fuel can be hard on fuel systems. Regular checks can ensure that you do not run into any issues when you least expect them. If you notice any damage, replace the fuel line immediately.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePRIMER BULBS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck the primer bulbs on your engine before each use. Similar to fuel lines, primer bulbs may suffer from exposure to Ethanol based fuel. A quick replacement of an old primer bulb is a simple way to eliminate any potential problems. If the bulb is hard or cracked, replace it.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL FILTERS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIt's also important to check and replace your fuel filters regularly. Clogged or dirty fuel filters can cause all sorts of problems, including reduced engine power and poor fuel economy. Fuel water separating filters take engine protection to another level by removing water deposits that might enter the fuel system. Sierra's fuel water separating filters are a perfect solution for a fuel filter replacement.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSPARK PLUGS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eInspect your spark plugs yearly and clean or replace them as needed. Carbon build up on the electrodes limit the spark plug's ability to efficiently produce a spark. This could cause you to experience reduced gas mileage, poor acceleration, hard starts, engine misfires and rough idling. Checking your plugs in the spring to ensure they are ready for boating season and can possibly help identify hidden problems within your engine. This is an important step in keeping your engine running at peak performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eOIL\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eOne of the most important things you can do for your boat engine is to change the oil regularly. Check the oil level in your engine every time you take the boat out for the day. If it's low, add more oil. Also, keep an eye on oil quality. Using a high quality engine oil offered on sierraparts.com you can be sure that you are giving your engine the best protection against the harsh marine environment. If the appearance of the oil turns milky in color, this could indicate that you have water intrusion into your engine and should be addressed immediately. Be sure to check your owner's manual to find out what type of oil is best for your engine.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eGEAR LUBE\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAnother important aspect of boat engine maintenance is changing the gear lube. Your lower unit has several gears that rely on quality gear lubes to minimize friction and overheating. Over time, lower units can become susceptible to leaks and allow water to enter, and mix with the gear lube. This will greatly reduce the gear lube's ability to maintain proper lubrication and protect your gears from damage. Regular inspection can help you identify leaks early and reduce repair costs. This should be done according to the manufacturer's recommendations.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBATTERY\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBoat batteries are essential for starting your engine and powering accessories. Most marine batteries are lead-acid batteries and require special care. Check the battery regularly for corrosion on the terminals, which can be cleaned with a mixture of water and baking soda. If the battery is more than three years old, it's probably time to replace it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKEEP YOUR ENGINE HAPPY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy following these tips, you can help keep your boat engine in good working order. Regular maintenance will prolong the life of your engine and help ensure that it runs smoothly when you need it.\u003c\/p\u003e\n\u003cp\u003eIf you need help with part identification, feel free to contact us for more information.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":41993158721731,"sku":"SIERRA-18-3788-9","price":93.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Mercruiser-Bravo-II-Tab-Washer-10-Pack-Sierra-18-3788-9.jpg?v=1776975565"},{"product_id":"omc-prop-nut-sierra-18-3705","title":"OMC Propeller Nut | Sierra Marine Products 18-3705","description":"\u003cp\u003eOMC Propeller Nut | Sierra Marine Products 18-3705\u003c\/p\u003e\n\u003ch2\u003eOMC Propeller Nut | Sierra Marine Products 18-3705\u003c\/h2\u003e\n\u003cp\u003eSierra 18-3705 OMC Propeller Nut\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOMC Prop Nut\u003c\/li\u003e\n\u003cli\u003eReplaces OMC\/Johnson\/Evinrude 314503\u003c\/li\u003e\n\u003cli\u003eReplaces Mallory 9-73903\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eThread: 5\/8\" - 11\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eWrench Size: 1 1\/16\" SAE \/ 27mm Metric\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eEach Sierra product meets or exceeds the original equipment part it replaces\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003cp\u003eSIERRA has a 58-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. In 2022, we expanded the scope of the SIERRA brand to include a wide range of products for the aftermarket boating business, as well as products for land-based applications.\u003c\/p\u003e\n\u003cp\u003eThe SIERRA brand encompasses the full SIERRA Marine product lines, as well as expansive marine brands formerly known as Shields and Moeller. The new SIERRA Brand umbrella will also include the Prime Line brand for ATV\/UTV and outdoor power equipment markets, along with additional aftermarket parts and accessories for land-based applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA\u003c\/strong\u003e \u003cstrong\u003eGlobal Brand\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn all markets for land and sea, the SIERRA brand stands for time-proven aftermarket products, built with quality and backed by the industry’s leading customer support and service. Sierra is continuously innovating new products and technologies to anticipate and solve customer needs.\u003c\/p\u003e\n\u003cp\u003eOne of the most important aspects of owning a boat is keeping the engine well-maintained. Whether you own a new Mercury® Outboard or an old OMC® Sterndrive, Sierra Marine offers a vast selection of boat parts to keep you moving. A properly running engine is essential for a safe and enjoyable boating experience. Luckily, with a little bit of regular care, it's easy to keep your boat engine in good shape.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA FEW THINGS TO KEEP AN EYE ON:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL LINES\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck your boat's fuel lines regularly for cracks, leaks or other damage. Today's fuel can be hard on fuel systems. Regular checks can ensure that you do not run into any issues when you least expect them. If you notice any damage, replace the fuel line immediately.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePRIMER BULBS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck the primer bulbs on your engine before each use. Similar to fuel lines, primer bulbs may suffer from exposure to Ethanol based fuel. A quick replacement of an old primer bulb is a simple way to eliminate any potential problems. If the bulb is hard or cracked, replace it.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL FILTERS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIt's also important to check and replace your fuel filters regularly. Clogged or dirty fuel filters can cause all sorts of problems, including reduced engine power and poor fuel economy. Fuel water separating filters take engine protection to another level by removing water deposits that might enter the fuel system. Sierra's fuel water separating filters are a perfect solution for a fuel filter replacement.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSPARK PLUGS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eInspect your spark plugs yearly and clean or replace them as needed. Carbon build up on the electrodes limit the spark plug's ability to efficiently produce a spark. This could cause you to experience reduced gas mileage, poor acceleration, hard starts, engine misfires and rough idling. Checking your plugs in the spring to ensure they are ready for boating season and can possibly help identify hidden problems within your engine. This is an important step in keeping your engine running at peak performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eOIL\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eOne of the most important things you can do for your boat engine is to change the oil regularly. Check the oil level in your engine every time you take the boat out for the day. If it's low, add more oil. Also, keep an eye on oil quality. Using a high quality engine oil offered on sierraparts.com you can be sure that you are giving your engine the best protection against the harsh marine environment. If the appearance of the oil turns milky in color, this could indicate that you have water intrusion into your engine and should be addressed immediately. Be sure to check your owner's manual to find out what type of oil is best for your engine.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eGEAR LUBE\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAnother important aspect of boat engine maintenance is changing the gear lube. Your lower unit has several gears that rely on quality gear lubes to minimize friction and overheating. Over time, lower units can become susceptible to leaks and allow water to enter, and mix with the gear lube. This will greatly reduce the gear lube's ability to maintain proper lubrication and protect your gears from damage. Regular inspection can help you identify leaks early and reduce repair costs. This should be done according to the manufacturer's recommendations.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBATTERY\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBoat batteries are essential for starting your engine and powering accessories. Most marine batteries are lead-acid batteries and require special care. Check the battery regularly for corrosion on the terminals, which can be cleaned with a mixture of water and baking soda. If the battery is more than three years old, it's probably time to replace it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKEEP YOUR ENGINE HAPPY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy following these tips, you can help keep your boat engine in good working order. Regular maintenance will prolong the life of your engine and help ensure that it runs smoothly when you need it.\u003c\/p\u003e\n\u003cp\u003eIf you need help with part identification, feel free to contact us for more information.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":41993175531715,"sku":"SIERRA-18-3705","price":2.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/OMC-Propeller-Nut-Sierra-Marine-Products-18-3705.jpg?v=1776975567"},{"product_id":"omc-prop-nut-kit-sierra-18-3715","title":"OMC Propeller Nut Kit | Sierra Marine Products 18-3715","description":"\u003ch2\u003eOMC Propeller Nut Kit | Sierra Marine Products 18-3715\u003c\/h2\u003e\n\u003cp\u003eOMC Propeller Nut Kit | Sierra Marine Products 18-3715\u003c\/p\u003e\n\u003cp\u003eSierra 18-3715 Prop Nut Kit\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOMC Prop Nut Kit\u003c\/li\u003e\n\u003cli\u003eContains 18-3708-1 prop nut keeper, 18-3741 cotter pin, and 18-4231 prop spacer\u003c\/li\u003e\n\u003cli\u003eReplaces OMC\/Johnson\/Evinrude 175266\u003c\/li\u003e\n\u003cli\u003eReplaces Mallory 9-73953\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003cp\u003eSIERRA has a 58-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. In 2022, we expanded the scope of the SIERRA brand to include a wide range of products for the aftermarket boating business, as well as products for land-based applications.\u003c\/p\u003e\n\u003cp\u003eThe SIERRA brand encompasses the full SIERRA Marine product lines, as well as expansive marine brands formerly known as Shields and Moeller. The new SIERRA Brand umbrella will also include the Prime Line brand for ATV\/UTV and outdoor power equipment markets, along with additional aftermarket parts and accessories for land-based applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA\u003c\/strong\u003e \u003cstrong\u003eGlobal Brand\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn all markets for land and sea, the SIERRA brand stands for time-proven aftermarket products, built with quality and backed by the industry’s leading customer support and service. Sierra is continuously innovating new products and technologies to anticipate and solve customer needs.\u003c\/p\u003e\n\u003cp\u003eOne of the most important aspects of owning a boat is keeping the engine well-maintained. Whether you own a new Mercury® Outboard or an old OMC® Sterndrive, Sierra Marine offers a vast selection of boat parts to keep you moving. A properly running engine is essential for a safe and enjoyable boating experience. Luckily, with a little bit of regular care, it's easy to keep your boat engine in good shape.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA FEW THINGS TO KEEP AN EYE ON:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL LINES\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck your boat's fuel lines regularly for cracks, leaks or other damage. Today's fuel can be hard on fuel systems. Regular checks can ensure that you do not run into any issues when you least expect them. If you notice any damage, replace the fuel line immediately.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePRIMER BULBS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck the primer bulbs on your engine before each use. Similar to fuel lines, primer bulbs may suffer from exposure to Ethanol based fuel. A quick replacement of an old primer bulb is a simple way to eliminate any potential problems. If the bulb is hard or cracked, replace it.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL FILTERS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIt's also important to check and replace your fuel filters regularly. Clogged or dirty fuel filters can cause all sorts of problems, including reduced engine power and poor fuel economy. Fuel water separating filters take engine protection to another level by removing water deposits that might enter the fuel system. Sierra's fuel water separating filters are a perfect solution for a fuel filter replacement.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSPARK PLUGS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eInspect your spark plugs yearly and clean or replace them as needed. Carbon build up on the electrodes limit the spark plug's ability to efficiently produce a spark. This could cause you to experience reduced gas mileage, poor acceleration, hard starts, engine misfires and rough idling. Checking your plugs in the spring to ensure they are ready for boating season and can possibly help identify hidden problems within your engine. This is an important step in keeping your engine running at peak performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eOIL\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eOne of the most important things you can do for your boat engine is to change the oil regularly. Check the oil level in your engine every time you take the boat out for the day. If it's low, add more oil. Also, keep an eye on oil quality. Using a high quality engine oil offered on sierraparts.com you can be sure that you are giving your engine the best protection against the harsh marine environment. If the appearance of the oil turns milky in color, this could indicate that you have water intrusion into your engine and should be addressed immediately. Be sure to check your owner's manual to find out what type of oil is best for your engine.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eGEAR LUBE\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAnother important aspect of boat engine maintenance is changing the gear lube. Your lower unit has several gears that rely on quality gear lubes to minimize friction and overheating. Over time, lower units can become susceptible to leaks and allow water to enter, and mix with the gear lube. This will greatly reduce the gear lube's ability to maintain proper lubrication and protect your gears from damage. Regular inspection can help you identify leaks early and reduce repair costs. This should be done according to the manufacturer's recommendations.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBATTERY\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBoat batteries are essential for starting your engine and powering accessories. Most marine batteries are lead-acid batteries and require special care. Check the battery regularly for corrosion on the terminals, which can be cleaned with a mixture of water and baking soda. If the battery is more than three years old, it's probably time to replace it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKEEP YOUR ENGINE HAPPY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy following these tips, you can help keep your boat engine in good working order. Regular maintenance will prolong the life of your engine and help ensure that it runs smoothly when you need it.\u003c\/p\u003e\n\u003cp\u003eIf you need help with part identification, feel free to contact us for more information.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":41993181823171,"sku":"SIERRA-18-3715","price":27.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/OMC-Propeller-Nut-Kit-Sierra-Marine-Products-18-3715.jpg?v=1776975568"},{"product_id":"mercruiser-bravo-iii-front-prop-nut-kit-sierra-18-3755","title":"Mercruiser Bravo III Front Prop Nut Kit | Sierra 18-3755","description":"\u003ch2\u003eMercruiser Bravo III Front Prop Nut Kit | Sierra 18-3755\u003c\/h2\u003e\n\u003cp\u003eSierra 18-3755 Prop Nut Kit\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMercruiser Bravo III Front Prop Nut Kit\u003c\/li\u003e\n\u003cli\u003eFits Mercruiser Bravo III\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003cp\u003eSIERRA has a 58-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. In 2022, we expanded the scope of the SIERRA brand to include a wide range of products for the aftermarket boating business, as well as products for land-based applications.\u003c\/p\u003e\n\u003cp\u003eThe SIERRA brand encompasses the full SIERRA Marine product lines, as well as expansive marine brands formerly known as Shields and Moeller. The new SIERRA Brand umbrella will also include the Prime Line brand for ATV\/UTV and outdoor power equipment markets, along with additional aftermarket parts and accessories for land-based applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA\u003c\/strong\u003e \u003cstrong\u003eGlobal Brand\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn all markets for land and sea, the SIERRA brand stands for time-proven aftermarket products, built with quality and backed by the industry’s leading customer support and service. Sierra is continuously innovating new products and technologies to anticipate and solve customer needs.\u003c\/p\u003e\n\u003cp\u003eOne of the most important aspects of owning a boat is keeping the engine well-maintained. Whether you own a new Mercury® Outboard or an old OMC® Sterndrive, Sierra Marine offers a vast selection of boat parts to keep you moving. A properly running engine is essential for a safe and enjoyable boating experience. Luckily, with a little bit of regular care, it's easy to keep your boat engine in good shape.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA FEW THINGS TO KEEP AN EYE ON:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL LINES\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck your boat's fuel lines regularly for cracks, leaks or other damage. Today's fuel can be hard on fuel systems. Regular checks can ensure that you do not run into any issues when you least expect them. If you notice any damage, replace the fuel line immediately.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePRIMER BULBS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck the primer bulbs on your engine before each use. Similar to fuel lines, primer bulbs may suffer from exposure to Ethanol based fuel. A quick replacement of an old primer bulb is a simple way to eliminate any potential problems. If the bulb is hard or cracked, replace it.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL FILTERS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIt's also important to check and replace your fuel filters regularly. Clogged or dirty fuel filters can cause all sorts of problems, including reduced engine power and poor fuel economy. Fuel water separating filters take engine protection to another level by removing water deposits that might enter the fuel system. Sierra's fuel water separating filters are a perfect solution for a fuel filter replacement.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSPARK PLUGS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eInspect your spark plugs yearly and clean or replace them as needed. Carbon build up on the electrodes limit the spark plug's ability to efficiently produce a spark. This could cause you to experience reduced gas mileage, poor acceleration, hard starts, engine misfires and rough idling. Checking your plugs in the spring to ensure they are ready for boating season and can possibly help identify hidden problems within your engine. This is an important step in keeping your engine running at peak performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eOIL\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eOne of the most important things you can do for your boat engine is to change the oil regularly. Check the oil level in your engine every time you take the boat out for the day. If it's low, add more oil. Also, keep an eye on oil quality. Using a high quality engine oil offered on sierraparts.com you can be sure that you are giving your engine the best protection against the harsh marine environment. If the appearance of the oil turns milky in color, this could indicate that you have water intrusion into your engine and should be addressed immediately. Be sure to check your owner's manual to find out what type of oil is best for your engine.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eGEAR LUBE\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAnother important aspect of boat engine maintenance is changing the gear lube. Your lower unit has several gears that rely on quality gear lubes to minimize friction and overheating. Over time, lower units can become susceptible to leaks and allow water to enter, and mix with the gear lube. This will greatly reduce the gear lube's ability to maintain proper lubrication and protect your gears from damage. Regular inspection can help you identify leaks early and reduce repair costs. This should be done according to the manufacturer's recommendations.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBATTERY\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBoat batteries are essential for starting your engine and powering accessories. Most marine batteries are lead-acid batteries and require special care. Check the battery regularly for corrosion on the terminals, which can be cleaned with a mixture of water and baking soda. If the battery is more than three years old, it's probably time to replace it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKEEP YOUR ENGINE HAPPY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy following these tips, you can help keep your boat engine in good working order. Regular maintenance will prolong the life of your engine and help ensure that it runs smoothly when you need it.\u003c\/p\u003e\n\u003cp\u003eIf you need help with part identification, feel free to contact us for more information.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":41993183330499,"sku":"SIERRA-18-3755","price":100.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Mercruiser-Bravo-III-Front-Prop-Nut-Kit-Sierra-18-3755.jpg?v=1776975571"},{"product_id":"mercruiser-bravo-ii-prop-nut-sierra-18-3785","title":"Prop Nut Mercruiser Bravo II | Sierra Marine Products 18-3785","description":"\u003ch2\u003eProp Nut Mercruiser Bravo II | Sierra Marine Products 18-3785\u003c\/h2\u003e\n\u003cp\u003eProp Nut Mercruiser Bravo II by Sierra Marine Products part# 18-3785\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSierra Prop Nut for Mercruiser Bravo II | 18-3785\u003c\/li\u003e\n\u003cli\u003eFits Mercruiser Bravo II stern drives\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury 11-826711 27\u003c\/li\u003e\n\u003cli\u003eProp Nut\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003cp\u003eSIERRA has a 56-year history as a top global producer of marine industry aftermarket engine and drive parts. In 2022, we broadened the SIERRA brand's appeal to encompass a variety of items for the aftermarket boating industry in addition to items for use on land.\u003c\/p\u003e\n\u003cp\u003eIn addition to the extensive maritime brands formerly known as Shields and Moeller, the SIERRA brand includes the whole SIERRA Marine product ranges. The Prime Line brand for ATV\/UTV and outdoor power equipment markets, as well as additional aftermarket parts and accessories for land-based applications, will also fall under the new SIERRA Brand umbrella.\u003c\/p\u003e\n\u003cp\u003eThe SIERRA name is synonymous with high-quality, time-tested aftermarket goods that are backed by the best customer service and support in the market throughout all land and maritime markets. To anticipate and address client needs, we are always developing new products and technology.\u003c\/p\u003e\n\u003cp\u003eBeing in charge of your ship means having all the information at your fingertips. We have what you need to stay in control, whether you're determining wind direction, speed, or water depth.\u003c\/p\u003e\n\u003cp\u003eWithout a well working engine, there is no adventure on the water. Stock up on all the parts you'll need to keep yours running smoothly and conserving fuel so you can relax and enjoy the water.\u003c\/p\u003e\n\u003cp\u003eWe take giving the appropriate gear for the job seriously since we know how serious you are about maintaining your vessel to keep it in top condition. Browse our selection of products to easily complete any repairs or assembly.\u003c\/p\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003cp\u003eSIERRA has a 58-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. In 2022, we expanded the scope of the SIERRA brand to include a wide range of products for the aftermarket boating business, as well as products for land-based applications.\u003c\/p\u003e\n\u003cp\u003eThe SIERRA brand encompasses the full SIERRA Marine product lines, as well as expansive marine brands formerly known as Shields and Moeller. The new SIERRA Brand umbrella will also include the Prime Line brand for ATV\/UTV and outdoor power equipment markets, along with additional aftermarket parts and accessories for land-based applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA\u003c\/strong\u003e \u003cstrong\u003eGlobal Brand\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn all markets for land and sea, the SIERRA brand stands for time-proven aftermarket products, built with quality and backed by the industry’s leading customer support and service. Sierra is continuously innovating new products and technologies to anticipate and solve customer needs.\u003c\/p\u003e\n\u003cp\u003eOne of the most important aspects of owning a boat is keeping the engine well-maintained. Whether you own a new Mercury® Outboard or an old OMC® Sterndrive, Sierra Marine offers a vast selection of boat parts to keep you moving. A properly running engine is essential for a safe and enjoyable boating experience. Luckily, with a little bit of regular care, it's easy to keep your boat engine in good shape.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA FEW THINGS TO KEEP AN EYE ON:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL LINES\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck your boat's fuel lines regularly for cracks, leaks or other damage. Today's fuel can be hard on fuel systems. Regular checks can ensure that you do not run into any issues when you least expect them. If you notice any damage, replace the fuel line immediately.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePRIMER BULBS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck the primer bulbs on your engine before each use. Similar to fuel lines, primer bulbs may suffer from exposure to Ethanol based fuel. A quick replacement of an old primer bulb is a simple way to eliminate any potential problems. If the bulb is hard or cracked, replace it.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL FILTERS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIt's also important to check and replace your fuel filters regularly. Clogged or dirty fuel filters can cause all sorts of problems, including reduced engine power and poor fuel economy. Fuel water separating filters take engine protection to another level by removing water deposits that might enter the fuel system. Sierra's fuel water separating filters are a perfect solution for a fuel filter replacement.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSPARK PLUGS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eInspect your spark plugs yearly and clean or replace them as needed. Carbon build up on the electrodes limit the spark plug's ability to efficiently produce a spark. This could cause you to experience reduced gas mileage, poor acceleration, hard starts, engine misfires and rough idling. Checking your plugs in the spring to ensure they are ready for boating season and can possibly help identify hidden problems within your engine. This is an important step in keeping your engine running at peak performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eOIL\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eOne of the most important things you can do for your boat engine is to change the oil regularly. Check the oil level in your engine every time you take the boat out for the day. If it's low, add more oil. Also, keep an eye on oil quality. Using a high quality engine oil offered on sierraparts.com you can be sure that you are giving your engine the best protection against the harsh marine environment. If the appearance of the oil turns milky in color, this could indicate that you have water intrusion into your engine and should be addressed immediately. Be sure to check your owner's manual to find out what type of oil is best for your engine.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eGEAR LUBE\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAnother important aspect of boat engine maintenance is changing the gear lube. Your lower unit has several gears that rely on quality gear lubes to minimize friction and overheating. Over time, lower units can become susceptible to leaks and allow water to enter, and mix with the gear lube. This will greatly reduce the gear lube's ability to maintain proper lubrication and protect your gears from damage. Regular inspection can help you identify leaks early and reduce repair costs. This should be done according to the manufacturer's recommendations.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBATTERY\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBoat batteries are essential for starting your engine and powering accessories. Most marine batteries are lead-acid batteries and require special care. Check the battery regularly for corrosion on the terminals, which can be cleaned with a mixture of water and baking soda. If the battery is more than three years old, it's probably time to replace it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKEEP YOUR ENGINE HAPPY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy following these tips, you can help keep your boat engine in good working order. Regular maintenance will prolong the life of your engine and help ensure that it runs smoothly when you need it.\u003c\/p\u003e\n\u003cp\u003eIf you need help with part identification or this Prop Nut Mercruiser Bravo II | Sierra Marine Products 18-3785, feel free to contact us for more information.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":41993185460419,"sku":"SIERRA-18-3785","price":12.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Prop-Nut-Mercruiser-Bravo-II-Sierra-Marine-Products-18-3785.jpg?v=1776975573"},{"product_id":"rear-prop-nut-mercruiser-bravo-iii-sierra-18-3786","title":"Rear Prop Nut Mercruiser Bravo III | Sierra 18-3786","description":"\u003ch2\u003eMercruiser Bravo III Rear Prop Nut | Sierra 18-3786\u003c\/h2\u003e\n\u003cp\u003eRear Prop Nut Mercruiser Bravo III by Sierra part#18-3786\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMercruiser Bravo III Rear Prop Nut\u003c\/li\u003e\n\u003cli\u003eFits Mercruiser Bravo III stern drives\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury 11-862907\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003cp\u003eSIERRA has a 58-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. In 2022, we expanded the scope of the SIERRA brand to include a wide range of products for the aftermarket boating business, as well as products for land-based applications.\u003c\/p\u003e\n\u003cp\u003eThe SIERRA brand encompasses the full SIERRA Marine product lines, as well as expansive marine brands formerly known as Shields and Moeller. The new SIERRA Brand umbrella will also include the Prime Line brand for ATV\/UTV and outdoor power equipment markets, along with additional aftermarket parts and accessories for land-based applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA\u003c\/strong\u003e \u003cstrong\u003eGlobal Brand\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn all markets for land and sea, the SIERRA brand stands for time-proven aftermarket products, built with quality and backed by the industry’s leading customer support and service. Sierra is continuously innovating new products and technologies to anticipate and solve customer needs.\u003c\/p\u003e\n\u003cp\u003eOne of the most important aspects of owning a boat is keeping the engine well-maintained. Whether you own a new Mercury® Outboard or an old OMC® Sterndrive, Sierra Marine offers a vast selection of boat parts to keep you moving. A properly running engine is essential for a safe and enjoyable boating experience. Luckily, with a little bit of regular care, it's easy to keep your boat engine in good shape.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA FEW THINGS TO KEEP AN EYE ON:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL LINES\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck your boat's fuel lines regularly for cracks, leaks or other damage. Today's fuel can be hard on fuel systems. Regular checks can ensure that you do not run into any issues when you least expect them. If you notice any damage, replace the fuel line immediately.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePRIMER BULBS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck the primer bulbs on your engine before each use. Similar to fuel lines, primer bulbs may suffer from exposure to Ethanol based fuel. A quick replacement of an old primer bulb is a simple way to eliminate any potential problems. If the bulb is hard or cracked, replace it.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL FILTERS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIt's also important to check and replace your fuel filters regularly. Clogged or dirty fuel filters can cause all sorts of problems, including reduced engine power and poor fuel economy. Fuel water separating filters take engine protection to another level by removing water deposits that might enter the fuel system. Sierra's fuel water separating filters are a perfect solution for a fuel filter replacement.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSPARK PLUGS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eInspect your spark plugs yearly and clean or replace them as needed. Carbon build up on the electrodes limit the spark plug's ability to efficiently produce a spark. This could cause you to experience reduced gas mileage, poor acceleration, hard starts, engine misfires and rough idling. Checking your plugs in the spring to ensure they are ready for boating season and can possibly help identify hidden problems within your engine. This is an important step in keeping your engine running at peak performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eOIL\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eOne of the most important things you can do for your boat engine is to change the oil regularly. Check the oil level in your engine every time you take the boat out for the day. If it's low, add more oil. Also, keep an eye on oil quality. Using a high quality engine oil offered on sierraparts.com you can be sure that you are giving your engine the best protection against the harsh marine environment. If the appearance of the oil turns milky in color, this could indicate that you have water intrusion into your engine and should be addressed immediately. Be sure to check your owner's manual to find out what type of oil is best for your engine.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eGEAR LUBE\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAnother important aspect of boat engine maintenance is changing the gear lube. Your lower unit has several gears that rely on quality gear lubes to minimize friction and overheating. Over time, lower units can become susceptible to leaks and allow water to enter, and mix with the gear lube. This will greatly reduce the gear lube's ability to maintain proper lubrication and protect your gears from damage. Regular inspection can help you identify leaks early and reduce repair costs. This should be done according to the manufacturer's recommendations.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBATTERY\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBoat batteries are essential for starting your engine and powering accessories. Most marine batteries are lead-acid batteries and require special care. Check the battery regularly for corrosion on the terminals, which can be cleaned with a mixture of water and baking soda. If the battery is more than three years old, it's probably time to replace it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKEEP YOUR ENGINE HAPPY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy following these tips, you can help keep your boat engine in good working order. Regular maintenance will prolong the life of your engine and help ensure that it runs smoothly when you need it.\u003c\/p\u003e\n\u003cp\u003eIf you need help with part identification, feel free to contact us for more information.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":41993185919171,"sku":"SIERRA-18-3786","price":12.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Rear-Prop-Nut-Mercruiser-Bravo-III-Sierra-18-3786.jpg?v=1776975575"},{"product_id":"omc-prop-nut-kit-sierra-18-3716","title":"OMC Propeller Nut Kit | Sierra Marine Products 18-3716","description":"\u003ch2\u003eOMC Propeller Nut Kit | Sierra Marine Products 18-3716\u003c\/h2\u003e\n\u003cp\u003eSierra 18-3716 Prop Nut Kit\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOMC Propeller Nut Kit | Sierra Marine Products 18-3716\u003c\/li\u003e\n\u003cli\u003eContains 18-3705 prop nut, 18-3742 cotter pin and 18-4228 prop spacer\u003c\/li\u003e\n\u003cli\u003eReplaces OMC\/Johnson\/Evinrude 175267\u003c\/li\u003e\n\u003cli\u003eReplaces Mallory 9-73952\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003cp\u003eSIERRA has a 58-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. In 2022, we expanded the scope of the SIERRA brand to include a wide range of products for the aftermarket boating business, as well as products for land-based applications.\u003c\/p\u003e\n\u003cp\u003eThe SIERRA brand encompasses the full SIERRA Marine product lines, as well as expansive marine brands formerly known as Shields and Moeller. The new SIERRA Brand umbrella will also include the Prime Line brand for ATV\/UTV and outdoor power equipment markets, along with additional aftermarket parts and accessories for land-based applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA\u003c\/strong\u003e \u003cstrong\u003eGlobal Brand\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn all markets for land and sea, the SIERRA brand stands for time-proven aftermarket products, built with quality and backed by the industry’s leading customer support and service. Sierra is continuously innovating new products and technologies to anticipate and solve customer needs.\u003c\/p\u003e\n\u003cp\u003eOne of the most important aspects of owning a boat is keeping the engine well-maintained. Whether you own a new Mercury® Outboard or an old OMC® Sterndrive, Sierra Marine offers a vast selection of boat parts to keep you moving. A properly running engine is essential for a safe and enjoyable boating experience. Luckily, with a little bit of regular care, it's easy to keep your boat engine in good shape.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA FEW THINGS TO KEEP AN EYE ON:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL LINES\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck your boat's fuel lines regularly for cracks, leaks or other damage. Today's fuel can be hard on fuel systems. Regular checks can ensure that you do not run into any issues when you least expect them. If you notice any damage, replace the fuel line immediately.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePRIMER BULBS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck the primer bulbs on your engine before each use. Similar to fuel lines, primer bulbs may suffer from exposure to Ethanol based fuel. A quick replacement of an old primer bulb is a simple way to eliminate any potential problems. If the bulb is hard or cracked, replace it.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL FILTERS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIt's also important to check and replace your fuel filters regularly. Clogged or dirty fuel filters can cause all sorts of problems, including reduced engine power and poor fuel economy. Fuel water separating filters take engine protection to another level by removing water deposits that might enter the fuel system. Sierra's fuel water separating filters are a perfect solution for a fuel filter replacement.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSPARK PLUGS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eInspect your spark plugs yearly and clean or replace them as needed. Carbon build up on the electrodes limit the spark plug's ability to efficiently produce a spark. This could cause you to experience reduced gas mileage, poor acceleration, hard starts, engine misfires and rough idling. Checking your plugs in the spring to ensure they are ready for boating season and can possibly help identify hidden problems within your engine. This is an important step in keeping your engine running at peak performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eOIL\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eOne of the most important things you can do for your boat engine is to change the oil regularly. Check the oil level in your engine every time you take the boat out for the day. If it's low, add more oil. Also, keep an eye on oil quality. Using a high quality engine oil offered on sierraparts.com you can be sure that you are giving your engine the best protection against the harsh marine environment. If the appearance of the oil turns milky in color, this could indicate that you have water intrusion into your engine and should be addressed immediately. Be sure to check your owner's manual to find out what type of oil is best for your engine.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eGEAR LUBE\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAnother important aspect of boat engine maintenance is changing the gear lube. Your lower unit has several gears that rely on quality gear lubes to minimize friction and overheating. Over time, lower units can become susceptible to leaks and allow water to enter, and mix with the gear lube. This will greatly reduce the gear lube's ability to maintain proper lubrication and protect your gears from damage. Regular inspection can help you identify leaks early and reduce repair costs. This should be done according to the manufacturer's recommendations.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBATTERY\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBoat batteries are essential for starting your engine and powering accessories. Most marine batteries are lead-acid batteries and require special care. Check the battery regularly for corrosion on the terminals, which can be cleaned with a mixture of water and baking soda. If the battery is more than three years old, it's probably time to replace it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKEEP YOUR ENGINE HAPPY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy following these tips, you can help keep your boat engine in good working order. Regular maintenance will prolong the life of your engine and help ensure that it runs smoothly when you need it.\u003c\/p\u003e\n\u003cp\u003eIf you need help with part identification, feel free to contact us for more information.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":41993187131587,"sku":"SIERRA-18-3716","price":13.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/OMC-Propeller-Nut-Kit-Sierra-Marine-Products-18-3716.jpg?v=1776975576"},{"product_id":"omc-lock-nut-sierra-18-3730","title":"OMC Lock Nut | Sierra Marine Products 18-3730","description":"\u003ch2\u003eOMC Lock Nut | Sierra Marine Products 18-3730\u003c\/h2\u003e\n\u003cp\u003eOMC Lock Nut | Sierra Marine Products 18-3730\u003c\/p\u003e\n\u003cp\u003eSierra 18-3730 Lock Nut\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOMC Lock Nut\u003c\/li\u003e\n\u003cli\u003eFits OMC Cobra and King Cobra stern drives from 1987-94\u003c\/li\u003e\n\u003cli\u003eReplaces OMC 3852648\u003c\/li\u003e\n\u003cli\u003eReplaces Volvo Penta 3852648\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury 11-34933, 11-859116\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003cp\u003eSIERRA has a 58-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. In 2022, we expanded the scope of the SIERRA brand to include a wide range of products for the aftermarket boating business, as well as products for land-based applications.\u003c\/p\u003e\n\u003cp\u003eThe SIERRA brand encompasses the full SIERRA Marine product lines, as well as expansive marine brands formerly known as Shields and Moeller. The new SIERRA Brand umbrella will also include the Prime Line brand for ATV\/UTV and outdoor power equipment markets, along with additional aftermarket parts and accessories for land-based applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA\u003c\/strong\u003e \u003cstrong\u003eGlobal Brand\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn all markets for land and sea, the SIERRA brand stands for time-proven aftermarket products, built with quality and backed by the industry’s leading customer support and service. Sierra is continuously innovating new products and technologies to anticipate and solve customer needs.\u003c\/p\u003e\n\u003cp\u003eOne of the most important aspects of owning a boat is keeping the engine well-maintained. Whether you own a new Mercury® Outboard or an old OMC® Sterndrive, Sierra Marine offers a vast selection of boat parts to keep you moving. A properly running engine is essential for a safe and enjoyable boating experience. Luckily, with a little bit of regular care, it's easy to keep your boat engine in good shape.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA FEW THINGS TO KEEP AN EYE ON:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL LINES\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck your boat's fuel lines regularly for cracks, leaks or other damage. Today's fuel can be hard on fuel systems. Regular checks can ensure that you do not run into any issues when you least expect them. If you notice any damage, replace the fuel line immediately.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePRIMER BULBS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck the primer bulbs on your engine before each use. Similar to fuel lines, primer bulbs may suffer from exposure to Ethanol based fuel. A quick replacement of an old primer bulb is a simple way to eliminate any potential problems. If the bulb is hard or cracked, replace it.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL FILTERS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIt's also important to check and replace your fuel filters regularly. Clogged or dirty fuel filters can cause all sorts of problems, including reduced engine power and poor fuel economy. Fuel water separating filters take engine protection to another level by removing water deposits that might enter the fuel system. Sierra's fuel water separating filters are a perfect solution for a fuel filter replacement.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSPARK PLUGS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eInspect your spark plugs yearly and clean or replace them as needed. Carbon build up on the electrodes limit the spark plug's ability to efficiently produce a spark. This could cause you to experience reduced gas mileage, poor acceleration, hard starts, engine misfires and rough idling. Checking your plugs in the spring to ensure they are ready for boating season and can possibly help identify hidden problems within your engine. This is an important step in keeping your engine running at peak performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eOIL\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eOne of the most important things you can do for your boat engine is to change the oil regularly. Check the oil level in your engine every time you take the boat out for the day. If it's low, add more oil. Also, keep an eye on oil quality. Using a high quality engine oil offered on sierraparts.com you can be sure that you are giving your engine the best protection against the harsh marine environment. If the appearance of the oil turns milky in color, this could indicate that you have water intrusion into your engine and should be addressed immediately. Be sure to check your owner's manual to find out what type of oil is best for your engine.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eGEAR LUBE\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAnother important aspect of boat engine maintenance is changing the gear lube. Your lower unit has several gears that rely on quality gear lubes to minimize friction and overheating. Over time, lower units can become susceptible to leaks and allow water to enter, and mix with the gear lube. This will greatly reduce the gear lube's ability to maintain proper lubrication and protect your gears from damage. Regular inspection can help you identify leaks early and reduce repair costs. This should be done according to the manufacturer's recommendations.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBATTERY\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBoat batteries are essential for starting your engine and powering accessories. Most marine batteries are lead-acid batteries and require special care. Check the battery regularly for corrosion on the terminals, which can be cleaned with a mixture of water and baking soda. If the battery is more than three years old, it's probably time to replace it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKEEP YOUR ENGINE HAPPY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy following these tips, you can help keep your boat engine in good working order. Regular maintenance will prolong the life of your engine and help ensure that it runs smoothly when you need it.\u003c\/p\u003e\n\u003cp\u003eIf you need help with part identification, feel free to contact us for more information.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":41993187459267,"sku":"SIERRA-18-3730","price":4.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/OMC-Lock-Nut-Sierra-Marine-Products-18-3730.jpg?v=1776975579"},{"product_id":"mercruiser-bravo-iii-front-prop-nut-sierra-18-3783","title":"Mercruiser Bravo III Front Prop Nut | Sierra 18-3783","description":"\u003ch2\u003eMercruiser Bravo III Front Prop Nut | Sierra 18-3783\u003c\/h2\u003e\n\u003cp\u003eSierra 18-3783 Prop Nut\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMercruiser Bravo III Front Prop Nut\u003c\/li\u003e\n\u003cli\u003eFits Mercruiser Bravo III model stern drives\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury 11-859131\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003cp\u003eSIERRA has a 58-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. In 2022, we expanded the scope of the SIERRA brand to include a wide range of products for the aftermarket boating business, as well as products for land-based applications.\u003c\/p\u003e\n\u003cp\u003eThe SIERRA brand encompasses the full SIERRA Marine product lines, as well as expansive marine brands formerly known as Shields and Moeller. The new SIERRA Brand umbrella will also include the Prime Line brand for ATV\/UTV and outdoor power equipment markets, along with additional aftermarket parts and accessories for land-based applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA\u003c\/strong\u003e \u003cstrong\u003eGlobal Brand\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn all markets for land and sea, the SIERRA brand stands for time-proven aftermarket products, built with quality and backed by the industry’s leading customer support and service. Sierra is continuously innovating new products and technologies to anticipate and solve customer needs.\u003c\/p\u003e\n\u003cp\u003eOne of the most important aspects of owning a boat is keeping the engine well-maintained. Whether you own a new Mercury® Outboard or an old OMC® Sterndrive, Sierra Marine offers a vast selection of boat parts to keep you moving. A properly running engine is essential for a safe and enjoyable boating experience. Luckily, with a little bit of regular care, it's easy to keep your boat engine in good shape.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA FEW THINGS TO KEEP AN EYE ON:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL LINES\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck your boat's fuel lines regularly for cracks, leaks or other damage. Today's fuel can be hard on fuel systems. Regular checks can ensure that you do not run into any issues when you least expect them. If you notice any damage, replace the fuel line immediately.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePRIMER BULBS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCheck the primer bulbs on your engine before each use. Similar to fuel lines, primer bulbs may suffer from exposure to Ethanol based fuel. A quick replacement of an old primer bulb is a simple way to eliminate any potential problems. If the bulb is hard or cracked, replace it.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFUEL FILTERS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIt's also important to check and replace your fuel filters regularly. Clogged or dirty fuel filters can cause all sorts of problems, including reduced engine power and poor fuel economy. Fuel water separating filters take engine protection to another level by removing water deposits that might enter the fuel system. Sierra's fuel water separating filters are a perfect solution for a fuel filter replacement.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSPARK PLUGS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eInspect your spark plugs yearly and clean or replace them as needed. Carbon build up on the electrodes limit the spark plug's ability to efficiently produce a spark. This could cause you to experience reduced gas mileage, poor acceleration, hard starts, engine misfires and rough idling. Checking your plugs in the spring to ensure they are ready for boating season and can possibly help identify hidden problems within your engine. This is an important step in keeping your engine running at peak performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eOIL\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eOne of the most important things you can do for your boat engine is to change the oil regularly. Check the oil level in your engine every time you take the boat out for the day. If it's low, add more oil. Also, keep an eye on oil quality. Using a high quality engine oil offered on sierraparts.com you can be sure that you are giving your engine the best protection against the harsh marine environment. If the appearance of the oil turns milky in color, this could indicate that you have water intrusion into your engine and should be addressed immediately. Be sure to check your owner's manual to find out what type of oil is best for your engine.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eGEAR LUBE\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAnother important aspect of boat engine maintenance is changing the gear lube. Your lower unit has several gears that rely on quality gear lubes to minimize friction and overheating. Over time, lower units can become susceptible to leaks and allow water to enter, and mix with the gear lube. This will greatly reduce the gear lube's ability to maintain proper lubrication and protect your gears from damage. Regular inspection can help you identify leaks early and reduce repair costs. This should be done according to the manufacturer's recommendations.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBATTERY\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBoat batteries are essential for starting your engine and powering accessories. Most marine batteries are lead-acid batteries and require special care. Check the battery regularly for corrosion on the terminals, which can be cleaned with a mixture of water and baking soda. If the battery is more than three years old, it's probably time to replace it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKEEP YOUR ENGINE HAPPY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy following these tips, you can help keep your boat engine in good working order. Regular maintenance will prolong the life of your engine and help ensure that it runs smoothly when you need it.\u003c\/p\u003e\n\u003cp\u003eIf you need help with part identification, feel free to contact us for more information.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":41993187786947,"sku":"SIERRA-18-3783","price":35.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Mercruiser-Bravo-III-Front-Prop-Nut-Sierra-18-3783.jpg?v=1776975582"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/collections\/prop-nuts-kits.jpg?v=1776992985","url":"https:\/\/www.macombmarineparts.com\/collections\/prop-nuts-kits.oembed","provider":"MacombMarineParts.com","version":"1.0","type":"link"}