{"title":"Marine Engine Gaskets | MacombMarineParts.com","description":"\u003cp data-sourcepos=\"1:1-1:83\"\u003eMarine Engine Gaskets | MacombMarineParts.com\u003c\/p\u003e\n\u003ch2 class=\"\" data-sourcepos=\"1:1-1:74\"\u003eKeep Your Boat Running Smoothly with Our Marine Engine Gaskets and Kits\u003c\/h2\u003e\n\u003cp data-sourcepos=\"3:1-3:278\"\u003eEnsure reliable performance and prevent costly repairs with our top-tier collection of engine gaskets and kits. We offer a comprehensive selection of gaskets designed specifically for the harsh marine environment, ensuring your boat runs smoothly for years to come.\u003c\/p\u003e\n\u003cp data-sourcepos=\"5:1-5:384\"\u003eOur engine gasket kits provide a convenient solution for essential engine maintenance and repairs. Each kit contains the  engine gaskets you'll need to replace worn or damaged seals, keeping your engine leak-free and operating at peak efficiency. Whether you're performing routine maintenance or tackling a larger repair project, our kits have you covered.\u003c\/p\u003e\n\u003cp data-sourcepos=\"7:1-7:57\"\u003e\u003cstrong\u003eBenefits of Using Our Marine Engine Gaskets and Kits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-sourcepos=\"9:1-11:57\"\u003e\n\u003cli data-sourcepos=\"9:1-9:180\"\u003e\n\u003cstrong\u003eSuperior Durability:\u003c\/strong\u003e Crafted from high-quality materials specifically chosen to withstand the harsh marine climate, including saltwater corrosion and extreme temperatures.\u003c\/li\u003e\n\u003cli data-sourcepos=\"10:1-10:161\"\u003e\n\u003cstrong\u003eLeak-Free Performance:\u003c\/strong\u003e Our gaskets create a perfect seal, preventing oil, water, and other fluids from leaking and compromising your engine's performance.\u003c\/li\u003e\n\u003cli data-sourcepos=\"11:1-11:57\"\u003e\n\u003cstrong\u003eReduced Maintenance Costs:\u003c\/strong\u003e By preventing leaks and ensuring optimal engine operation, our \u003cstrong\u003eengine gaskets\u003c\/strong\u003e help you save money on repairs and maintenance in the long run.\u003c\/li\u003e\n\u003cli data-sourcepos=\"12:1-12:167\"\u003e\n\u003cstrong\u003eImproved Engine Life:\u003c\/strong\u003e Properly sealed engines run cooler and more efficiently, reducing wear and tear and extending the lifespan of your valuable marine engine.\u003c\/li\u003e\n\u003cli data-sourcepos=\"13:1-14:0\"\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Our \u003cstrong\u003emarine engine gasket kits\u003c\/strong\u003e are carefully designed for specific engine models, ensuring a perfect fit and simplifying the installation process for both seasoned mechanics and DIY enthusiasts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-sourcepos=\"15:1-15:25\"\u003e\u003cstrong\u003eShop with Confidence:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"17:1-17:297\"\u003eWe are committed to providing you with the highest quality marine engine gaskets and exceptional customer service. Our knowledgeable staff is happy to answer any questions you may have and help you choose the marine engine gasket kit that's right for your specific engine application.\u003c\/p\u003e\n\u003cp data-sourcepos=\"19:1-19:159\"\u003e\u003cstrong\u003eBrowse our extensive collection of marine engine gaskets and kits today. Invest in confidence and keep your boat running smoothly for years to come!\u003c\/strong\u003e\u003c\/p\u003e","products":[{"product_id":"gasket-upper-thermostat-housing-crusader-rm0290","title":"Crusader RM0290 - Upper Thermostat Housing Gasket","description":"\u003ch2\u003eCrusader RM0290 - Upper Thermostat Housing Gasket, CES 5.0L\/5.7L\u003c\/h2\u003e\u003cp\u003eResealing the upper thermostat housing starts with a gasket matched to the cooling-system configuration. Crusader RM0290 is listed for Crusader and Pleasurecraft Marine CES 5.0L and 5.7L Catanium raw-water-cooled catalyst engines from 2010–2011. Its upper-housing location and specific catalyst-engine application distinguish it from a general-purpose thermostat gasket.\u003c\/p\u003e\u003ch2\u003ePart Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart Number: RM0290\u003c\/li\u003e\n\u003cli\u003eComponent: Upper thermostat housing gasket\u003c\/li\u003e\n\u003cli\u003eListed Engine Brands: Crusader and Pleasurecraft Marine (PCM)\u003c\/li\u003e\n\u003cli\u003eListed Engine Family: CES Catanium catalyst engines\u003c\/li\u003e\n\u003cli\u003eListed Displacements: 5.0L and 5.7L\u003c\/li\u003e\n\u003cli\u003eListed Years: 2010–2011\u003c\/li\u003e\n\u003cli\u003eCooling Configuration: Raw water cooled\u003c\/li\u003e\n\u003cli\u003ePCM Part Reference: RM0290\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eConfirm Fitment Before Ordering\u003c\/h2\u003e\u003cp\u003eUse the parts diagrams on our website to identify the gasket at your engine’s upper thermostat housing. Alternatively, give us your engine model and serial number and we’ll confirm fitment before ordering by email, text or live chat. Confirm the catalyst-engine and raw-water-cooling configuration rather than relying on displacement or boat year alone.\u003c\/p\u003e\u003ch5\u003eAdditional Information\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eVendor: Crusader\u003c\/li\u003e\n\u003cli\u003ePart Number: RM0290\u003c\/li\u003e\n\u003cli\u003eOEM Cross-Reference: Pleasurecraft Marine RM0290\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eRefer to the applicable engine service manual for thermostat-housing gasket installation, sealing-surface requirements and fastener specifications.\u003c\/p\u003e\u003ch5\u003eFrequently Asked Questions\u003c\/h5\u003e\u003cp\u003e\u003cstrong\u003eQ: Will RM0290 fit any 5.0L or 5.7L marine engine?\u003c\/strong\u003e\u003cbr\u003eA: No universal fitment is established. The listed application is the 2010–2011 Crusader\/PCM CES Catanium raw-water-cooled catalyst-engine configuration; verify the engine-specific gasket reference.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is this the upper or lower thermostat-housing gasket?\u003c\/strong\u003e\u003cbr\u003eA: RM0290 is identified as the upper thermostat-housing gasket. Match its location in the engine diagram rather than selecting another housing gasket by name alone.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Does this listing include the thermostat or housing?\u003c\/strong\u003e\u003cbr\u003eA: This listing identifies the gasket, not a thermostat or complete housing assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is the PCM RM0290 reference relevant to this Crusader listing?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The existing catalog lists Pleasurecraft Marine RM0290 as the corresponding part reference; engine-model confirmation is still required.\u003c\/p\u003e","brand":"Crusader","offers":[{"title":"Default Title","offer_id":38042609156291,"sku":"CRU-RM0290","price":5.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Gasket-Upper-Thermostat-Housing-Crusader-RM0290.jpg?v=1776949241"},{"product_id":"sierra-oil-pan-gasket-set-18-0348","title":"Sierra 18-0348 - GM 454\/502 Four-Piece Oil Pan Gasket Set","description":"\u003ch2\u003eSierra 18-0348 - GM Big Block Oil Pan Gasket Set, Four-Piece Design\u003c\/h2\u003e\u003cp\u003eResealing a GM big-block marine oil pan starts with matching the gasket arrangement to the engine and pan. Sierra 18-0348 is listed for GM 7.4L 454 CID and 8.2L 502 CID marine engines using four-piece oil pan gaskets. It seals the joint between the oil pan and block, giving a configuration-specific replacement rather than a blanket fit for every 454 or 502 installation.\u003c\/p\u003e\u003ch2\u003ePart Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 18-0348\u003c\/li\u003e\n\u003cli\u003eComponent: Oil pan gasket set\u003c\/li\u003e\n\u003cli\u003eGasket Arrangement: Four-piece\u003c\/li\u003e\n\u003cli\u003eListed Engines: GM 7.4L \/ 454 CID and 8.2L \/ 502 CID marine engines with the matching four-piece arrangement\u003c\/li\u003e\n\u003cli\u003eSealing Location: Oil pan to engine block\u003c\/li\u003e\n\u003cli\u003eReplaces OMC: 3931593; 508871\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury: 27-52550\u003c\/li\u003e\n\u003cli\u003eReplaces Crusader: 22048; RM0132\u003c\/li\u003e\n\u003cli\u003eReplaces Pleasurecraft Marine: RM0132\u003c\/li\u003e\n\u003cli\u003eReplaces Mallory: 9-61501\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe related \u003ca href=\"\/products\/crusader-gasket-set-oil-pan-454-rm0132\"\u003eCrusader RM0132 big-block oil pan gasket set\u003c\/a\u003e is listed for Crusader Gen IV 454\/502 engines and cross-references this Sierra set. Check the exact engine and oil-pan configuration before selecting either listing.\u003c\/p\u003e\u003ch2\u003eConfirm Fitment Before Ordering\u003c\/h2\u003e\u003cp\u003eUse the parts diagrams available on our website to identify the oil pan gasket arrangement for your engine. Alternatively, send us your engine model and serial number by email, text or live chat, and we'll confirm fitment before ordering. Include any replacement engine-block or oil-pan details; displacement alone does not confirm the required gasket design.\u003c\/p\u003e\u003ch5\u003eAdditional Information\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eVendor: Sierra\u003c\/li\u003e\n\u003cli\u003ePart Number: 18-0348\u003c\/li\u003e\n\u003cli\u003eOEM Cross-Reference: OMC 3931593, 508871; Mercury 27-52550; Crusader 22048, RM0132; Pleasurecraft Marine RM0132\u003c\/li\u003e\n\u003cli\u003eAftermarket Cross-Reference: Mallory 9-61501\u003c\/li\u003e\n\u003cli\u003eKit Contents: Four-piece oil pan gasket set\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eRefer to the applicable engine service manual for oil-pan sealing-surface inspection, gasket and sealant requirements, assembly sequence and fastener specifications.\u003c\/p\u003e\u003ch5\u003eFrequently Asked Questions\u003c\/h5\u003e\u003cp\u003e\u003cstrong\u003eQ: Does it fit both 454 and 502 marine engines?\u003c\/strong\u003e\u003cbr\u003eA: The listing covers GM 7.4L 454 CID and 8.2L 502 CID marine engines that use the matching four-piece oil pan gasket arrangement; verify the specific engine and pan before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is this a one-piece molded oil pan gasket?\u003c\/strong\u003e\u003cbr\u003eA: No. Sierra 18-0348 is listed as a four-piece set, so it should not be selected as a one-piece replacement without confirming the required design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Does it include a rear crankshaft main seal?\u003c\/strong\u003e\u003cbr\u003eA: A rear main seal is not established as part of this set. The oil-pan sealing joint and crankshaft main-seal service are separate parts-identification checks.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I use the old gasket's brand reference to identify it?\u003c\/strong\u003e\u003cbr\u003eA: The listed references include Mercury 27-52550, Crusader\/PCM RM0132, Crusader 22048, OMC 3931593\/508871 and Mallory 9-61501; confirm the gasket arrangement as well as the reference.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is sealant required with this gasket set?\u003c\/strong\u003e\u003cbr\u003eA: Follow the applicable service manual for whether sealant is specified, its type and its locations. Do not assume the same sealing method applies across different pans or engine assemblies.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":38042611089603,"sku":"SIERRA-18-0348","price":37.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/GM-Big-Block-Oil-Pan-Gasket-Set-Sierra-18-0348.jpg?v=1776949275"},{"product_id":"volvo-gasket-3850405","title":"Carburetor Adapter Mounting Gasket | Volvo 3850405","description":"\u003ch2\u003eCarburetor Adapter Mounting Gasket | Volvo 3850405\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eGasket for mounting 2 BBL Holley adapter and throttle body adapter to the intake manifold on various Volvo Penta marine engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCarburetor adapter gasket\u003c\/li\u003e\n\u003cli\u003eFor various Volvo Penta 5.0, 5.7 GL, Gi, Gxi and 4.3 Gi model marine engines\u003c\/li\u003e\n\u003cli\u003eOriginal Volvo Penta\u003c\/li\u003e\n\u003cli\u003eReplaces OMC 3850405\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Volvo Penta","offers":[{"title":"Default Title","offer_id":38042630160579,"sku":"VOLVO-3850405","price":12.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Carburetor-Adapter-Mounting-Gasket-Volvo-3850405.jpg?v=1776949548"},{"product_id":"barr-omc-manifold-end-plate-gasket-omc47-311131","title":"OMC Manifold End Plate Gasket | Barr OMC47-311131","description":"OMC Manifold End Plate Gasket | Barr OMC47-311131\u003cbr\u003e\u003cbr\u003eEnd gasket for OMC 225 HP \u0026amp; 245 HP marine engines with log style exhaust manifolds.\u003cbr\u003e\u003cbr\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBarr OMC end plate gasket\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFor OMC 225 HP and 245 HP marine engines with log style exhaust manifolds from 1968-1972\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFits between elbow and manifold\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eReplaces OMC 311131\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e","brand":"Barr Marine","offers":[{"title":"Default Title","offer_id":38042661847235,"sku":"BARR-OMC47-311131","price":4.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/OMC-Manifold-End-Plate-Gasket-Barr-OMC47-311131.jpg?v=1776949957"},{"product_id":"barr-riser-gasket-mc47-27-99777","title":"Barr Riser Gasket Mc47-27-99777","description":"Barr Riser Gasket Mc47-27-99777","brand":"Barr Marine","offers":[{"title":"Default Title","offer_id":38042666598595,"sku":"BARR-MC47-27-99777-3","price":9.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Barr-Riser-Gasket-Mc47-27-99777.jpg?v=1776950012"},{"product_id":"gasket-thermostat-sierra-18-2831","title":"Gasket Thermostat | Sierra 18-2831","description":"\u003cp\u003eGasket Thermostat | Sierra 18-2831\u003c\/p\u003e\n\u003cp\u003eThermostat Gasket | Sierra 18-2831\u003c\/p\u003e\n\u003ch2\u003eSIERRA Thermostat Gasket 18-2831\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThermostat Gasket\u003c\/li\u003e\n\u003cli\u003eFor Mercruiser stern drives\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury Marine 27-47590-1, 27-475901\u003c\/li\u003e\n\u003cli\u003eReplaces Mallory 9-60012\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":38042668597443,"sku":"SIERRA-18-2831","price":0.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Gasket-Thermostat-Sierra-18-2831.jpg?v=1776950047"},{"product_id":"barr-block-off-plate-mc-20-55730","title":"Mercruiser Riser Block Off Plate | Barr Marine MC-20-55730","description":"\u003cp\u003eMercruiser Riser Block Off Plate | Barr Marine MC-20-55730\u003c\/p\u003e\n\u003cdiv class=\"product attribute overview\"\u003e\n\u003cdiv class=\"value\" itemprop=\"description\"\u003eReplacement stainless steel block off plate for various Mercruiser closed cooled engines.\u003c\/div\u003e\n\u003cdiv class=\"value\" itemprop=\"description\"\u003e\n\u003cul\u003e\n\u003cli\u003eBarr Mercruiser stainless steel block off plate\u003c\/li\u003e\n\u003cli\u003eFor use with 60426A1, 76351A1, and 76771A2 Mercruiser risers in fresh water cooled applications\u003c\/li\u003e\n\u003cli\u003eSeparates engine antifreeze from raw water\u003c\/li\u003e\n\u003cli\u003eReplaces Barr MC20-55730\u003c\/li\u003e\n\u003cli\u003eReplaces Mercuiser 55730\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Barr Marine","offers":[{"title":"Default Title","offer_id":38042671415491,"sku":"BARR-MC-20-55730","price":22.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Mercruiser-Riser-Block-Off-Plate-Barr-Marine-MC-20-55730.jpg?v=1776950102"},{"product_id":"barr-cover-t-stat-mc47-27-90556","title":"Barr Cover  T\/Stat Mc47-27-90556","description":"Barr Cover  T\/Stat Mc47-27-90556","brand":"Barr Marine","offers":[{"title":"Default Title","offer_id":38042672496835,"sku":"BARR-MC47-27-90556","price":6.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Barr-Cover-TStat-Mc47-27-90556.jpg?v=1776950125"},{"product_id":"barr-omc-manifold-end-plate-gasket-omc47-311130","title":"OMC Manifold End Plate Gasket | Barr OMC47-311130","description":"OMC Manifold End Plate Gasket | Barr OMC47-311130\u003cbr\u003e\u003cbr\u003eEnd gasket for OMC 225 HP \u0026amp; 245 HP marine engines with log style exhaust manifolds.\u003cbr\u003e\u003cbr\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBarr OMC end plate gasket\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFor OMC 225 HP and 245 HP marine engines with log style exhaust manifolds from 1968-1972\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eNot for use between elbow and manifold - use P\/N 311131\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eReplaces OMC 311130\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e","brand":"Barr Marine","offers":[{"title":"Default Title","offer_id":38042673086659,"sku":"BARR-OMC47-311130","price":6.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/OMC-Manifold-End-Plate-Gasket-Barr-OMC47-311130.jpg?v=1776950129"},{"product_id":"volvo-riser-gasket-857618","title":"Exhaust Elbow Gasket | Volvo 857618","description":"\u003ch2\u003eExhaust Elbow Gasket | Volvo 857618\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eGasket mounts exhaust elbow to exhaust manifold on Volvo Penta BB231A and BB261A inboard marine engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExhaust riser gasket\u003c\/li\u003e\n\u003cli\u003eFor Volvo Penta BB231A \u0026amp; BB261A model engines\u003c\/li\u003e\n\u003cli\u003eOriginal Volvo Penta\u003c\/li\u003e\n\u003cli\u003eReplaces Volvo Penta 835908, 856039\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Volvo Penta","offers":[{"title":"Default Title","offer_id":38042685931715,"sku":"VOLVO-857618","price":23.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Exhaust-Elbow-Gasket-Volvo-857618.jpg?v=1776950330"},{"product_id":"barr-riser-gasket-mc47-27-87105","title":"Barr Riser Gasket Mc47-27-87105","description":"Barr Riser Gasket Mc47-27-87105","brand":"Barr Marine","offers":[{"title":"Default Title","offer_id":38042810024131,"sku":"BARR-MC47-27-87105","price":11.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Barr-Riser-Gasket-Mc47-27-87105.jpg?v=1776950655"},{"product_id":"crusader-502-cylinder-head-gasket-31137","title":"502 Cylinder Head Gasket | Crusader 31137","description":"\u003cp\u003eOEM marine head gasket fits Crusader GM Mark V 502 cu. in. marine engines.\u003c\/p\u003e\n\u003ch2\u003e502 Cylinder Head Gasket | Crusader 31137\u003c\/h2\u003e\n\u003cdiv class=\"product-add-form\"\u003e\u003cform novalidate=\"novalidate\" id=\"product_addtocart_form\" method=\"post\" action=\"https:\/\/marysvillemarine.com\/checkout\/cart\/add\/uenc\/aHR0cHM6Ly9tYXJ5c3ZpbGxlbWFyaW5lLmNvbS9oZWFkLWdhc2tldC1jcnVzYWRlci0zMTEzNy5odG1s\/product\/200424\/\" data-product-sku=\"CRU-31137\"\u003e\u003c\/form\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eFor GM Mark V 8.2L 502 CID marine engines\u003c\/li\u003e\n\u003cli\u003eSold separately - 2 needed per engine\u003c\/li\u003e\n\u003cli\u003eOriginal Crusader\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury 27-879150139\u003c\/li\u003e\n\u003cli\u003eReplaces OMC 3853511\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eIs there an octane grade that is advised for Crusader engines given the current rise in gas prices?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMaximum performance is attained while using 87 octane fuel since Crusader fuel injected engines are tuned to run on it. For usage with the factory-set ignition timing, premium regular gasoline with a (R+M\/2) octane rating is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes crusader recommend a specific type of oil for their engines?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse a high-quality SAE 15W-40 \"SJ\" when the average temperature is over 50 degrees Fahrenheit. Use SAE 5W-30 \"SJ\" below 50. It is not advised to use synthetic oils in Crusader engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExplain Crusader's position on ethanol use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis warning only applies to CRUSADER engines and their usage of ethanol fuels. The usage of ethanol fuels in vessel-related parts such boat gas tanks, boat fuel lines, boat fuel filters, etc. is not addressed. The boat owner is STRONGLY ADVISED to speak with the boat manufacturer about whether using ethanol fuel in their boat is appropriate.\u003c\/p\u003e\n\u003cp\u003eEthanol-blend fuel with an E10 or below rating is permissible.\u003c\/p\u003e\n\u003cp\u003eFuels with ratings greater than E10 is NOT advised.\u003c\/p\u003e\n\u003cp\u003eHigher-than-E10 ethanol fuels have the potential to harm the engine and\/or create hazardous boating conditions. The guarantee does not apply to harm to the engine brought on by the use of ethanol gasoline with an E10 rating or above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat kind of coolant is recommended to be used in a Crusader engine \/ cooling system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor engines with closed cooling systems, Crusader suggests mixing 50% DEX-COOL to 50% water, or any other suitable extended life coolant (pink\/orange in hue). Overheating may result from coolant levels greater than 50%. Do not combine DEX-COOL with conventional silicated coolant or use it in its place (green in color).\u003c\/p\u003e","brand":"Crusader","offers":[{"title":"Default Title","offer_id":38042811138243,"sku":"CRU-31137","price":89.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/502-Cylinder-Head-Gasket-Crusader-31137.jpg?v=1776950671"},{"product_id":"gasket-thermostat-housing-3-bolt-indmar-531058","title":"Indmar 531058 - 3-Bolt Upper Thermostat Housing Gasket","description":"\u003ch2\u003eIndmar 531058 - Triangular Three-Bolt Upper Thermostat Housing Gasket\u003c\/h2\u003e\u003cp\u003eResealing the joint between the upper and lower thermostat housings requires the gasket that matches the installed assembly. Indmar 531058 is an original Indmar triangular gasket with three bolt holes, listed for specified Indmar GM 5.7L marine engines. Its distinctive pattern helps narrow the selection without assuming every 5.7L thermostat housing uses the same seal.\u003c\/p\u003e\u003ch2\u003ePart Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 531058\u003c\/li\u003e\n\u003cli\u003eComponent: Upper thermostat housing gasket\u003c\/li\u003e\n\u003cli\u003eShape: Triangular\u003c\/li\u003e\n\u003cli\u003eBolt-Hole Pattern: Three holes\u003c\/li\u003e\n\u003cli\u003eSealing Joint: Upper thermostat housing to lower housing\u003c\/li\u003e\n\u003cli\u003eListed Engine Application: Indmar GM 5.7L marine engines with the matching housing arrangement\u003c\/li\u003e\n\u003cli\u003ePart Identity: Original Indmar\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eConfirm Fitment Before Ordering\u003c\/h2\u003e\u003cp\u003eUse the parts diagrams available on our website to identify the gasket specified for your thermostat housing. Alternatively, send us your engine model and serial number by email, text or live chat, and we’ll confirm fitment before ordering. Include the installed housing identification if the engine or cooling-system assembly has been changed.\u003c\/p\u003e\u003ch5\u003eAdditional Information\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eVendor: Indmar\u003c\/li\u003e\n\u003cli\u003ePart Number: 531058\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor a different Indmar gasket reference, the related \u003ca href=\"\/products\/sierra-thermostat-gasket-18-0665\"\u003eSierra 18-0665 thermostat gasket\u003c\/a\u003e is listed against Indmar 985006, not 531058. Check the diagram position and reference independently; it is not established as a substitute for this upper-housing gasket.\u003c\/p\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eRefer to the applicable Indmar engine service manual for thermostat-housing gasket replacement, sealing-surface inspection and assembly specifications.\u003c\/p\u003e\u003ch5\u003eFrequently Asked Questions\u003c\/h5\u003e\u003cp\u003e\u003cstrong\u003eQ: Which housing joint does 531058 seal?\u003c\/strong\u003e\u003cbr\u003eA: It is listed as the triangular three-bolt gasket between the upper and lower thermostat housings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Does every Indmar GM 5.7L engine use this gasket?\u003c\/strong\u003e\u003cbr\u003eA: Universal coverage is not established. Confirm the engine identification and installed thermostat housing against the required parts reference.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is the thermostat or housing included?\u003c\/strong\u003e\u003cbr\u003eA: This listing is for the gasket, not a thermostat or housing assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can Sierra 18-0665 be used instead?\u003c\/strong\u003e\u003cbr\u003eA: That related listing references Indmar 985006. It is not established as interchangeable with 531058; select the gasket specified for the correct diagram position.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Are dimensions, material and sealant requirements specified?\u003c\/strong\u003e\u003cbr\u003eA: Verified dimensions and material are not provided here. Match the part reference and housing pattern, and follow the applicable service manual for sealing requirements.\u003c\/p\u003e","brand":"Indmar","offers":[{"title":"Default Title","offer_id":38042812121283,"sku":"IND-531058","price":3.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Gasket-Thermostat-Housing-3-Bolt-Indmar-531058.jpg?v=1776950679"},{"product_id":"wedge-carburetor-mounting-502-crusader-98087","title":"Wedge Carburetor Mounting 502 | Crusader 98087","description":"\u003ch2\u003eWedge Carburetor Mounting 502 | Crusader 98087\u003c\/h2\u003e\n\u003cp\u003eWedge Carburetor Mounting 502 | Crusader 98087\u003c\/p\u003e\n\u003cp\u003e8 degree wedge plate is designed to allow marine square bore carburetors to site level on inboard marine engines.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCarburetor wedge plate used with inboard marine engines to maintain proper angle of carburetor for optimum performance\u003c\/li\u003e\n\u003cli\u003eFits Crusader 454HO and 502 cu. in. marine engines with Holley carburetors\u003c\/li\u003e\n\u003cli\u003eOriginal Crusader\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eIs there an octane grade that is advised for Crusader engines given the current rise in gas prices?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMaximum performance is attained while using 87 octane fuel since Crusader fuel injected engines are tuned to run on it. For usage with the factory-set ignition timing, premium regular gasoline with a (R+M\/2) octane rating is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes crusader recommend a specific type of oil for their engines?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse a high-quality SAE 15W-40 \"SJ\" when the average temperature is over 50 degrees Fahrenheit. Use SAE 5W-30 \"SJ\" below 50.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e It is not advised to use synthetic oils in Crusader engines.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExplain Crusader's position on ethanol use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis warning only applies to CRUSADER engines and their usage of ethanol fuels. The usage of ethanol fuels in vessel-related parts such as boat gas tanks, boat fuel lines, boat fuel filters, etc. is not addressed. The boat owner is STRONGLY ADVISED to speak with the boat manufacturer about whether using ethanol fuel in their boat is appropriate.\u003c\/p\u003e\n\u003cp\u003eEthanol-blend fuel with an E10 or below rating is permissible.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eFuels with ratings greater than E10 is NOT advised.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eHigher than E10 ethanol fuels have the potential to harm the engine and\/or create hazardous boating conditions. The guarantee does not apply to harm to the engine brought on by the use of ethanol gasoline with an E10 rating or above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat kind of coolant is recommended to be used in a Crusader engine \/ cooling system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor engines with closed cooling systems, Crusader suggests mixing 50% DEX-COOL to 50% water, or any other suitable extended life coolant (pink\/orange in hue). Overheating may result from coolant levels greater than 50%. Do not combine DEX-COOL with conventional silicated coolant or use it in its place (green in color).\u003c\/p\u003e","brand":"Crusader","offers":[{"title":"Default Title","offer_id":38042847215811,"sku":"CRU-98087","price":113.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Wedge-Carburetor-Mounting-502-Crusader-98087.jpg?v=1776950906"},{"product_id":"rochester-quadrajet-carburetor-base-gasket-fel-pro-1905","title":"Rochester Quadrajet Carburetor Base Gasket | Fel-Pro 1905","description":"\u003ch2\u003eRochester Quadrajet Carburetor Base Gasket | Fel-Pro 1905\u003c\/h2\u003e\n\u003cp\u003eRochester Quadrajet Carburetor Base Gasket | Fel-Pro 1905\u003c\/p\u003e\n\u003cp\u003eCarburetor-to-intake manifold mounting gasket for Rochester 4 barrel Quadra-Jet carburetors.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSpread bore carburetor gasket\u003c\/li\u003e\n\u003cli\u003eFits Rochester Quadra-Jet 4 bbl carburetors\u003c\/li\u003e\n\u003cli\u003eReplaces Marine Power 285103 | Replaces OMC 908765 | Replaces Volvo Penta 0856033\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fel-Pro","offers":[{"title":"Default Title","offer_id":38042863206595,"sku":"FP-1905","price":18.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Rochester-Quadrajet-Carburetor-Base-Gasket-Fel-Pro-1905.jpg?v=1776951106"},{"product_id":"fel-pro-gm-v8-454-gen-iv-intake-manifold-gasket-set-17340","title":"GM 7.4L Intake Manifold Gasket Set | Fel-Pro 17340","description":"\u003ch2\u003eGM 7.4L Intake Manifold Gasket Set | Fel-Pro 17340\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan\u003eFel-Pro marine grade intake gasket set fits GM Mark IV 454 cu. in. marine engines.\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFor GM 7.4L 454 CID Gen 4 (IV) marine engines used up to 1991\u003c\/li\u003e\n\u003cli\u003eIncludes intake manifold side gaskets, intake manifold end seals and distributor mounting gasket\u003c\/li\u003e\n\u003cli\u003eMarine grade\u003c\/li\u003e\n\u003cli\u003eReplaces Crusader RM0200\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury 27-8M0050224\u003c\/li\u003e\n\u003cli\u003eReplaces Pleasurecraft Marine RM0200\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fel-Pro","offers":[{"title":"Default Title","offer_id":38042864156867,"sku":"FP-17340","price":56.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/GM-7_4L-Intake-Manifold-Gasket-Set-Fel-Pro-17340.jpg?v=1776951136"},{"product_id":"crusader-305-350-cylinder-head-gasket-rm0195","title":"GM Small Block Cylinder Head Gasket | Crusader RM0195","description":"\u003cp\u003eGM Small Block Cylinder Head Gasket | Crusader RM0195\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOEM marine head gasket fits Crusader GM 305 and 350 cu. in. marine engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor all GM 5.0L 305 CID \u0026amp; 5.7L 350 CID marine engines\u003c\/li\u003e\n\u003cli\u003eSold separately - 2 needed per per engine\u003c\/li\u003e\n\u003cli\u003eOriginal Crusader\u003c\/li\u003e\n\u003cli\u003eReplaces Crusader 33345, 33709, 91632, 7057500, R148010\u003c\/li\u003e\n\u003cli\u003eReplaces Indmar 551654\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury\/Mercruiser 27-75611001\u003c\/li\u003e\n\u003cli\u003eReplaces OMC\/Johnson\/Evinrude 3853380\u003c\/li\u003e\n\u003cli\u003eReplaces Pleasurecraft Marine RM0195\u003c\/li\u003e\n\u003cli\u003eReplaces Volvo Penta 3853380\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crusader","offers":[{"title":"Default Title","offer_id":38042883555523,"sku":"CRU-RM0195","price":86.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/GM-Small-Block-Cylinder-Head-Gasket-Crusader-RM0195.jpg?v=1776951376"},{"product_id":"crusader-oil-pan-gasket-8-1-l-rm0263","title":"GM 8.1L Oil Pan Gasket | Crusader RM0263","description":"\u003cp\u003eGM 8.1L Oil Pan Gasket | Crusader RM0263\u003c\/p\u003e\n\u003cp\u003e8.1L Crusader OEM one piece oil pan gasket seals between oil pan and the block.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor Crusader 8.1L 496 CID marine engines\u003c\/li\u003e\n\u003cli\u003eOriginal Crusader\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crusader","offers":[{"title":"Default Title","offer_id":38042885423299,"sku":"CRU-RM0263","price":63.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/GM-8_1L-Oil-Pan-Gasket-Crusader-RM0263.jpg?v=1776951417"},{"product_id":"crusader-502-intake-manifold-gasket-kit-rm0201","title":"8.2L Intake Manifold Gasket Set | Crusader RM0201","description":"\u003ch2\u003e8.2L Intake Manifold Gasket Set | Crusader RM0201\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eOEM Crusader intake gasket set fits Mark IV or Gen V 502 cu. in. marine engines with square intake ports.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor Crusader GM 8.2L 502 CID Mark 4 (IV) or Gen V engines with square ports\u003c\/li\u003e\n\u003cli\u003eOriginal Crusader\u003c\/li\u003e\n\u003cli\u003eReplaces Crusader 30281, 31135\u003c\/li\u003e\n\u003cli\u003eReplaces Mallory Ignition 9-61202\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury\/Mercruiser 27-805722A1\u003c\/li\u003e\n\u003cli\u003eReplaces Marine Power 288159\u003c\/li\u003e\n\u003cli\u003eReplaces OMC\/Johnson\/Evinrude 3854096\u003c\/li\u003e\n\u003cli\u003eReplaces Pleasurecraft Marine RM0201\u003c\/li\u003e\n\u003cli\u003eReplaces Volvo Penta 3854096\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eIs there an octane grade that is advised for Crusader engines given the current rise in gas prices?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMaximum performance is attained while using 87 octane fuel since Crusader fuel injected engines are tuned to run on it. For usage with the factory-set ignition timing, premium regular gasoline with a (R+M\/2) octane rating is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes crusader recommend a specific type of oil for their engines?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse a high-quality SAE 15W-40 \"SJ\" when the average temperature is over 50 degrees Fahrenheit. Use SAE 5W-30 \"SJ\" below 50. It is not advised to use synthetic oils in Crusader engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExplain Crusader's position on ethanol use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis warning only applies to CRUSADER engines and their usage of ethanol fuels. The usage of ethanol fuels in vessel-related parts such boat gas tanks, boat fuel lines, boat fuel filters, etc. is not addressed. The boat owner is STRONGLY ADVISED to speak with the boat manufacturer about whether using ethanol fuel in their boat is appropriate.\u003c\/p\u003e\n\u003cp\u003eEthanol-blend fuel with an E10 or below rating is permissible.\u003c\/p\u003e\n\u003cp\u003eFuels with ratings greater than E10 is NOT advised.\u003c\/p\u003e\n\u003cp\u003eHigher-than-E10 ethanol fuels have the potential to harm the engine and\/or create hazardous boating conditions. The guarantee does not apply to harm to the engine brought on by the use of ethanol gasoline with an E10 rating or above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat kind of coolant is recommended to be used in a Crusader engine \/ cooling system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor engines with closed cooling systems, Crusader suggests mixing 50% DEX-COOL to 50% water, or any other suitable extended life coolant (pink\/orange in hue). Overheating may result from coolant levels greater than 50%. 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For usage with the factory-set ignition timing, premium regular gasoline with a (R+M\/2) octane rating is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes crusader recommend a specific type of oil for their engines?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse a high-quality SAE 15W-40 \"SJ\" when the average temperature is over 50 degrees Fahrenheit. Use SAE 5W-30 \"SJ\" below 50.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e It is not advised to use synthetic oils in Crusader engines.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExplain Crusader's position on ethanol use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis warning only applies to CRUSADER engines and their usage of ethanol fuels. The usage of ethanol fuels in vessel-related parts such as boat gas tanks, boat fuel lines, boat fuel filters, etc. is not addressed. The boat owner is STRONGLY ADVISED to speak with the boat manufacturer about whether using ethanol fuel in their boat is appropriate.\u003c\/p\u003e\n\u003cp\u003eEthanol-blend fuel with an E10 or below rating is permissible.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eFuels with ratings greater than E10 is NOT advised.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eHigher than E10 ethanol fuels have the potential to harm the engine and\/or create hazardous boating conditions. The guarantee does not apply to harm to the engine brought on by the use of ethanol gasoline with an E10 rating or above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat kind of coolant is recommended to be used in a Crusader engine \/ cooling system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor engines with closed cooling systems, Crusader suggests mixing 50% DEX-COOL to 50% water, or any other suitable extended life coolant (pink\/orange in hue). Overheating may result from coolant levels greater than 50%. Do not combine DEX-COOL with conventional silicated coolant or use it in its place (green in color).\u003c\/p\u003e","brand":"Crusader","offers":[{"title":"Default Title","offer_id":38042947846339,"sku":"CRU-98088","price":10.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Gasket-Carburetor-Mounting-502-Crusader-98088.jpg?v=1776952165"},{"product_id":"crusader-baffle-carb-mntg-427-454-30121","title":"Carburetor Mounting Baffle 427\/454 | Crusader 30121","description":"\u003ch2\u003eCarburetor Mounting Baffle 427\/454 | Crusader 30121\u003c\/h2\u003e\n\u003cp\u003eCarburetor Mounting Baffle 427\/454 | Crusader 30121\u003c\/p\u003e\n\u003cp\u003ePrecision-engineered baffle plate designed for 427 and 454 cubic inch Crusader marine engines. Ensures proper carburetor alignment and vibration isolation, critical for fuel delivery consistency and engine performance. OEM Crusader part number 30121 — direct replacement for original equipment.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCRUSADER BAFFLE - CARB MNTG 427\/454 30121\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCarburetor Mounting Baffle 427\/454\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Crusader","offers":[{"title":"Default Title","offer_id":38042949025987,"sku":"CRU-30121","price":18.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Carburetor-Mounting-Baffle-427454-Crusader-30121.jpg?v=1779768927"},{"product_id":"crusader-gasket-upper-intake-7151320","title":"7.4L Intake Upper Plenum Gasket Set | Crusader 7151320","description":"\u003ch2\u003e7.4L Intake Upper Plenum Gasket Set | Crusader 7151320\u003c\/h2\u003e\n\u003cp\u003eOEM Crusader upper intake plenum gasket fits Crusader L29 454 cu. in. marine engines.\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor Crusader GM 7.4L 454 CID L29 marine engines\u003c\/li\u003e\n\u003cli\u003eOriginal Crusader\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury 27-802657\u003c\/li\u003e\n\u003cli\u003eReplaces Volvo Penta 3857475\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eIs there an octane grade that is advised for Crusader engines given the current rise in gas prices?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMaximum performance is attained while using 87 octane fuel since Crusader fuel injected engines are tuned to run on it. For usage with the factory-set ignition timing, premium regular gasoline with a (R+M\/2) octane rating is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes crusader recommend a specific type of oil for their engines?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse a high-quality SAE 15W-40 \"SJ\" when the average temperature is over 50 degrees Fahrenheit. Use SAE 5W-30 \"SJ\" below 50. It is not advised to use synthetic oils in Crusader engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExplain Crusader's position on ethanol use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis warning only applies to CRUSADER engines and their usage of ethanol fuels. The usage of ethanol fuels in vessel-related parts such boat gas tanks, boat fuel lines, boat fuel filters, etc. is not addressed. The boat owner is STRONGLY ADVISED to speak with the boat manufacturer about whether using ethanol fuel in their boat is appropriate.\u003c\/p\u003e\n\u003cp\u003eEthanol-blend fuel with an E10 or below rating is permissible.\u003c\/p\u003e\n\u003cp\u003eFuels with ratings greater than E10 is NOT advised.\u003c\/p\u003e\n\u003cp\u003eHigher-than-E10 ethanol fuels have the potential to harm the engine and\/or create hazardous boating conditions. The guarantee does not apply to harm to the engine brought on by the use of ethanol gasoline with an E10 rating or above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat kind of coolant is recommended to be used in a Crusader engine \/ cooling system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor engines with closed cooling systems, Crusader suggests mixing 50% DEX-COOL to 50% water, or any other suitable extended life coolant (pink\/orange in hue). Overheating may result from coolant levels greater than 50%. Do not combine DEX-COOL with conventional silicated coolant or use it in its place (green in color).\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Crusader","offers":[{"title":"Default Title","offer_id":38043009777859,"sku":"CRU-7151320","price":116.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/7_4L-Intake-Upper-Plenum-Gasket-Set-Crusader-7151320.jpg?v=1776952421"},{"product_id":"mercury-oil-pan-gasket-27-845628","title":"Mercury Oil Pan Gasket 27-845628","description":"Mercury OIL PAN GASKET 27845628","brand":"QuickSilver","offers":[{"title":"Default Title","offer_id":38043038548163,"sku":"QS-27-845628","price":85.99,"currency_code":"USD","in_stock":false}]},{"product_id":"mercury-oil-pan-gasket-set-27-72479a-5","title":"Mercury Oil Pan Gasket Set 27-72479A 5","description":"Mercury OIL PAN GASKET SET           2772479A 5","brand":"QuickSilver","offers":[{"title":"Default Title","offer_id":38043038908611,"sku":"QS-27-72479A 5","price":72.99,"currency_code":"USD","in_stock":false}]},{"product_id":"gasket-exhaust-elbow-6-0l-crusader-rm0274a","title":"Gasket Exhaust Elbow 6.0L | Crusader RM0274A","description":"\u003ch2\u003e6.0L Exhaust Elbow Gasket | Crusader RM0274A\u003c\/h2\u003e\n\u003cp\u003eGasket Exhaust Elbow 6.0L | Crusader RM0274A\u003c\/p\u003e\n\u003cp\u003eSeals between manifold \u0026amp; riser on Crusader 6.0L marine engines.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCrusader exhaust elbow gasket\u003c\/li\u003e\n\u003cli\u003eUsed on Crusader 6.0L marine engines\u003c\/li\u003e\n\u003cli\u003eOriginal Crusader\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eFrequently Asked Questions\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eIs there an octane grade that is advised for Crusader engines given the current rise in gas prices?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMaximum performance is attained while using 87 octane fuel since Crusader fuel injected engines are tuned to run on it. For usage with the factory-set ignition timing, premium regular gasoline with a (R+M\/2) octane rating is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes crusader recommend a specific type of oil for their engines?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse a high-quality SAE 15W-40 \"SJ\" when the average temperature is over 50 degrees Fahrenheit. Use SAE 5W-30 \"SJ\" below 50.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eIt is not advised to use synthetic oils in Crusader engines.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExplain Crusader's position on ethanol use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis warning only applies to CRUSADER engines and their usage of ethanol fuels. The usage of ethanol fuels in vessel-related parts such boat gas tanks, boat fuel lines, boat fuel filters, etc. is not addressed. The boat owner is STRONGLY ADVISED to speak with the boat manufacturer about whether using ethanol fuel in their boat is appropriate.\u003c\/p\u003e\n\u003cp\u003eEthanol-blend fuel with an E10 or below rating is permissible.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFuels with ratings greater than E10 is NOT advised.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHigher-than-E10 ethanol fuels have the potential to harm the engine and\/or create hazardous boating conditions. The guarantee does not apply to harm to the engine brought on by the use of ethanol gasoline with an E10 rating or above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat kind of coolant is recommended to be used in a Crusader engine \/ cooling system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor engines with closed cooling systems, Crusader suggests mixing 50% DEX-COOL to 50% water, or any other suitable extended life coolant (pink\/orange in hue). Overheating may result from coolant levels greater than 50%. Do not combine DEX-COOL with conventional silicated coolant or use it in its place (green in color).\u003c\/p\u003e","brand":"Crusader","offers":[{"title":"Default Title","offer_id":38043060568259,"sku":"CRU-RM0274A","price":71.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Gasket-Exhaust-Elbow-6_0L-Crusader-RM0274A.jpg?v=1776952801"},{"product_id":"crusader-gasket-intake-manifold-7150880","title":"Gasket Intake Manifold | Crusader Marine 7150880","description":"\u003ch2\u003eGasket Intake Manifold | Crusader Marine 7150880\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eINTAKE GASKETS,4.3 PRE-VORTECH\u003c\/li\u003e\n\u003cli\u003eReplaces Crusader 22277, 33393\u003c\/li\u003e\n\u003cli\u003eReplaces Marine Power 0009-280\u003c\/li\u003e\n\u003cli\u003eReplaces OMC 912979, 983061\u003c\/li\u003e\n\u003cli\u003eReplaces Volvo Penta 3850379\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crusader","offers":[{"title":"Default Title","offer_id":38043078000835,"sku":"CRU-7150880","price":33.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Gasket-Intake-Manifold-Crusader-Marine-7150880.jpg?v=1776953036"},{"product_id":"gasket-thermostat-housing-crusader-96105","title":"Gasket Thermostat Housing | Crusader 96105","description":"\u003cp\u003eGasket Thermostat Housing | Crusader 96105\u003c\/p\u003e\n\u003ch2\u003eOEM thermostat gasket with grounding rivet fits many early model Crusader marine engines.\u003c\/h2\u003e\n\u003cp\u003eThermostat Housing Gasket | Crusader 96105\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUsed on many raw water and fresh water cooled Crusader engines\u003c\/li\u003e\n\u003cli\u003eGasket mounts between lower thermostat housing and intake manifold\u003c\/li\u003e\n\u003cli\u003eGrounding rivet for better continuity to the thermostat housing\u003c\/li\u003e\n\u003cli\u003eOriginal Crusader\u003c\/li\u003e\n\u003cli\u003eReplaces Crusader RM0121\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"u-std std\"\u003e\n\u003ch5\u003e\u003cstrong\u003eFrequent Asked Questions\u003c\/strong\u003e\u003c\/h5\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eWith today’s rising gasoline prices, what octane rating is recommended for Crusader engines?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCrusader fuel injected engines are calibrated to operate on 87 octane fuel and maximum performance is obtained when using this fuel. The ignition timing set by the factory requires the use of a high-quality lead free regular gasoline with an octane specification of (R+M\/2).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e‏What kind of oil should be used in Crusader engines?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWhen the average temperature is above 50 degrees F., use a good quality SAE 15W-40 “SJ”. Below 50, use SAE 5W-30 “SJ”\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003eSynthetic oils are not recommended for use in Crusader engines. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is Crusader's policy on the use of Ethanol?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis notification addresses the use of ethanol fuels IN CRUSADER ENGINES ONLY. It does not address the use of ethanol fuels in vessel related components such as boat gas tanks, boat fuel lines, boat fuel filters, etc. The boat owner is STRONGLY ENCOURAGED to contact the boat builder regarding the suitability of ethanol fuel usage in their vessel.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEthanol blended fuel rated E10 or less is acceptable to use.\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003eFuels rated higher than E10 SHOULD NOT BE USED.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003eEthanol fuels rated higher than E10 could potentially damage the engine and\/or present an unsafe boating condition. Damage to the engine resulting from the use of ethanol fuel rated higher than E10 is not covered by the warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhat type of coolant should be used in Crusader engines?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCrusader recommends DEX-COOL or any good extended life coolant (pink\/orange in color) mixed 50% DEX-COOL to 50% water for engines that have a closed cooling system. More than 50% coolant can contribute to overheating. Do not mix or substitute DEX-COOL with traditional silicated coolant (green in color).\u003c\/p\u003e","brand":"Crusader","offers":[{"title":"Default Title","offer_id":38043079835843,"sku":"CRU-96105","price":5.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Gasket-Thermostat-Housing-Crusader-96105.jpg?v=1776953071"},{"product_id":"volvo-gasket-intake-5-7-gen-1e-3857662","title":"GM Small Block Intake Manifold Gasket Set Volvo | 3857662","description":"\u003ch2\u003eGM Small Block Intake Manifold Gasket Set Volvo | 3857662\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eOriginal Volvo Penta intake manifold gasket set fits GM Vortec 305 and 350 cu. in. marine engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIntake manifold gasket set for Volvo Penta GM 5.0L 305 and 5.7L 350 marine engines\u003c\/li\u003e\n\u003cli\u003eOriginal Volvo Penta\u003c\/li\u003e\n\u003cli\u003eReplaces Crusader 23536\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury 27-807473A1\u003c\/li\u003e\n\u003cli\u003eReplaces Marine Power 287753\u003c\/li\u003e\n\u003cli\u003eReplaces OMC 3857662\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Volvo Penta","offers":[{"title":"Default Title","offer_id":38043092189379,"sku":"VOLVO-3857662","price":163.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/GM-Small-Block-Intake-Manifold-Gasket-Set-Volvo-3857662.jpg?v=1776953238"},{"product_id":"volvo-exhaust-elbow-gasket-3850495","title":"3.0L Exhaust Riser Gasket | Volvo 3850495","description":"\u003cp\u003e3.0L Exhaust Riser Gasket | Volvo 3850495\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOEM exhaust riser \u0026amp; extension gasket for many Volvo Penta 3.0L 4 cylinder marine engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExhaust elbow gasket\u003c\/li\u003e\n\u003cli\u003eFor Volvo Penta 3.0 GLP, GLM, GSM, and GSP model engines\u003c\/li\u003e\n\u003cli\u003eReplaces OMC \/ BRP 3850495\u003c\/li\u003e\n\u003cli\u003eOriginal Volvo Penta\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Volvo Penta","offers":[{"title":"Default Title","offer_id":38043103789251,"sku":"VOLVO-3850495","price":13.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/3_0L-Exhaust-Riser-Gasket-Volvo-3850495.jpg?v=1776953464"},{"product_id":"exhaust-manifold-to-head-gasket-crusader-96306","title":"Gasket Exhaust Manifold To Head | Crusader 96306","description":"\u003cp\u003eGasket Exhaust Manifold To Head | Crusader 96306\u003c\/p\u003e\n\u003ch2\u003eCrusader Gasket Exhaust Manifold To Head | 96306\u003c\/h2\u003e\n\u003cp\u003eGasket seals between exhaust manifold and cylinder head on Crusader GM 5.0L \u0026amp; 5.7L small block marine engines.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCrusader exhaust manifold gasket\u003c\/li\u003e\n\u003cli\u003eFor Crusader GM V8 283, 305, 307, 327, and 350 cu. in. marine engines\u003c\/li\u003e\n\u003cli\u003eSpecific to Crusader manifolds\u003c\/li\u003e\n\u003cli\u003eOriginal Crusader\u003c\/li\u003e\n\u003cli\u003eReplaces RM0119\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eIs there an octane grade that is advised for Crusader engines given the current rise in gas prices?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMaximum performance is attained while using 87 octane fuel since Crusader fuel injected engines are tuned to run on it. For usage with the factory-set ignition timing, premium regular gasoline with a (R+M\/2) octane rating is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes crusader recommend a specific type of oil for their engines?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse a high-quality SAE 15W-40 \"SJ\" when the average temperature is over 50 degrees Fahrenheit. Use SAE 5W-30 \"SJ\" below 50.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eIt is not advised to use synthetic oils in Crusader engines.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExplain Crusader's position on ethanol use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis warning only applies to CRUSADER engines and their usage of ethanol fuels. The usage of ethanol fuels in vessel-related parts such as boat gas tanks, boat fuel lines, boat fuel filters, etc. is not addressed. The boat owner is STRONGLY ADVISED to speak with the boat manufacturer about whether using ethanol fuel in their boat is appropriate.\u003c\/p\u003e\n\u003cp\u003eEthanol-blend fuel with an E10 or below rating is permissible.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eFuels with ratings greater than E10 is NOT advised\u003c\/strong\u003e\u003c\/em\u003e.\u003c\/p\u003e\n\u003cp\u003eHigher than E10 ethanol fuels have the potential to harm the engine and\/or create hazardous boating conditions. The guarantee does not apply to harm to the engine brought on by the use of ethanol gasoline with an E10 rating or above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat kind of coolant is recommended to be used in a Crusader engine \/ cooling system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor engines with closed cooling systems, Crusader suggests mixing 50% DEX-COOL to 50% water, or any other suitable extended life coolant (pink\/orange in hue). 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For usage with the factory-set ignition timing, premium regular gasoline with a (R+M\/2) octane rating is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes crusader recommend a specific type of oil for their engines?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse a high-quality SAE 15W-40 \"SJ\" when the average temperature is over 50 degrees Fahrenheit. Use SAE 5W-30 \"SJ\" below 50. It is not advised to use synthetic oils in Crusader engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExplain Crusader's position on ethanol use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis warning only applies to CRUSADER engines and their usage of ethanol fuels. The usage of ethanol fuels in vessel-related parts such as boat gas tanks, boat fuel lines, boat fuel filters, etc. is not addressed. The boat owner is STRONGLY ADVISED to speak with the boat manufacturer about whether using ethanol fuel in their boat is appropriate.\u003c\/p\u003e\n\u003cp\u003eEthanol-blend fuel with an E10 or below rating is permissible.\u003c\/p\u003e\n\u003cp\u003eFuels with ratings greater than E10 is NOT advised.\u003c\/p\u003e\n\u003cp\u003eHigher than E10 ethanol fuels have the potential to harm the engine and\/or create hazardous boating conditions. The guarantee does not apply to harm to the engine brought on by the use of ethanol gasoline with an E10 rating or above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat kind of coolant is recommended to be used in a Crusader engine \/ cooling system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor engines with closed cooling systems, Crusader suggests mixing 50% DEX-COOL to 50% water, or any other suitable extended life coolant (pink\/orange in hue). Overheating may result from coolant levels greater than 50%. Do not combine DEX-COOL with conventional silicated coolant or use it in its place (green in color).\u003c\/p\u003e","brand":"Crusader","offers":[{"title":"Default Title","offer_id":38043155529923,"sku":"CRU-96562","price":6.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Gasket-Exhaust-Elbow-1-Hole-Crusader-96562.jpg?v=1776954612"},{"product_id":"sierra-exhaust-manifold-mounting-kit-18-8503","title":"PCM Exhaust Manifold Mounting Kit | Sierra 18-8503","description":"\u003cp\u003ePCM Exhaust Manifold Mounting Kit | Sierra 18-8503\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKit includes exhaust manifold to head gasket \u0026amp; mounting bolts for Pleasurecraft Marine Ford small block marine engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePCM exhaust manifold mounting kit\u003c\/li\u003e\n\u003cli\u003eFor Pleasurecraft Marine Ford 302 and 351 CID marine engines\u003c\/li\u003e\n\u003cli\u003eUsed with Sierra 18-1996 manifold\u003c\/li\u003e\n\u003cli\u003eIncludes exhaust manifold to head gasket and 8 Allen head mounting bolts\u003c\/li\u003e\n\u003cli\u003eReplaces Osco 28001-MK\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":38043190689987,"sku":"SIERRA-18-8503","price":31.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/PCM-Exhaust-Manifold-Mounting-Kit-Sierra-18-8503.jpg?v=1776954714"},{"product_id":"sierra-exhaust-manifold-gasket-18-2909","title":"GM V6 Exhaust Manifold to Head Gasket | Sierra 18-2909","description":"\u003cp\u003eGM V6 Exhaust Manifold to Head Gasket | Sierra 18-2909\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGasket seals exhaust manifold to cylinder head on GM 3.8L \u0026amp; 4.3L CID marine engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExhaust manifold gasket\u003c\/li\u003e\n\u003cli\u003eFor GM V6 229 and 262 cu. in. marine engines\u003c\/li\u003e\n\u003cli\u003eReplaces Crusader 97498\u003c\/li\u003e\n\u003cli\u003eReplaces Mercruiser 27-99757\u003c\/li\u003e\n\u003cli\u003eReplaces OMC 910157, 915025, 3853412\u003c\/li\u003e\n\u003cli\u003eReplaces Volvo Penta 856116, 3853412\u003c\/li\u003e\n\u003cli\u003eReplaces Yanmar YSC-12190-00-0C, YSC-12190-00-AC\u003c\/li\u003e\n\u003cli\u003eReplaces Mallory 9-61421\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":38043192819907,"sku":"SIERRA-18-2909","price":8.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/GM-V6-Exhaust-Manifold-to-Head-Gasket-Sierra-18-2909.jpg?v=1776954770"},{"product_id":"sierra-gasket-head-18-2946","title":"GM 3.0L Cylinder Head Gasket | Sierra 18-2946","description":"\u003cp\u003eGM 3.0L Cylinder Head Gasket | Sierra 18-2946\u003c\/p\u003e\n\u003ch2\u003eSeals cylinder head to engine block on GM 181 cu. in. marine engines.\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFor GM 3.0L 181 CID marine engines\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury 27-52364, 27-81084, 27-342731\u003c\/li\u003e\n\u003cli\u003eReplaces OMC 311210, 3853336\u003c\/li\u003e\n\u003cli\u003eReplaces Volvo Penta 3853336\u003c\/li\u003e\n\u003cli\u003eReplaces Mallory 9-63700\u003c\/li\u003e\n\u003cli\u003eReplaces Sierra 18-3880\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":38043193016515,"sku":"SIERRA-18-2946","price":35.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/GM-3_0L-Cylinder-Head-Gasket-Sierra-18-2946.jpg?v=1776954776"},{"product_id":"gasket-exhaust-manifold-to-head-inline-6-cylinder-sierra-18-2830-1","title":"Gasket Exhaust Manifold to Head Inline 6 Cylinder | Sierra 18-2830-1","description":"\u003ch2\u003eGasket Exhaust Manifold to Head Inline 6 Cylinder | Sierra 18-2830-1\u003c\/h2\u003e\n\u003cp\u003eGasket Exhaust Manifold to Head Inline 6 Cylinder | Sierra 18-2830-1\u003c\/p\u003e\n\u003cp\u003eInline 6 Cylinder Exhaust Manifold to Head Gasket | Sierra 18-2830-1\u003c\/p\u003e\n\u003cp\u003eCombination intake \u0026amp; exhaust manifold gasket fits Mercruiser GM straight 6 cylinder marine engines.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExhaust manifold gasket\u003c\/li\u003e\n\u003cli\u003eFits Mercruiser GM inline 6 cylinder marine engines\u003c\/li\u003e\n\u003cli\u003eReplaces Mercruiser 879036, 27-52584, 27-33121, 27-46401 | Replaces OMC 907932 | Replaces Osco CY6-GH | Replaces Mallory 9-61416 | Replaces Sierra 18-2830\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\u003ch6\u003eA \u003cstrong\u003eGlobal\u003c\/strong\u003e Brand\u003c\/h6\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\u003ch6\u003eFUEL LINES\u003c\/h6\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\u003ch6\u003ePRIMER BULBS\u003c\/h6\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\u003ch6\u003eFUEL FILTERS\u003c\/h6\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\u003ch6\u003eSPARK PLUGS\u003c\/h6\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\u003ch6\u003eOIL\u003c\/h6\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\u003ch6\u003eGEAR LUBE\u003c\/h6\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\u003ch6\u003eBATTERY\u003c\/h6\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\u003ch6\u003eKEEP YOUR ENGINE HAPPY\u003c\/h6\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\u003e \u003c\/p\u003e\n\u003cp\u003eIf you need help with part identification, feel free to contact us for more information\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":38043193114819,"sku":"SIERRA-18-2830-1","price":16.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Gasket-Exhaust-Manifold-to-Head-Inline-6-Cylinder-Sierra-18-2830-1.jpg?v=1776954779"},{"product_id":"sierra-exhaust-elbow-mounting-gasket-18-0881","title":"Mercruiser 224 CID Exhaust Elbow Gasket | Sierra 18-0881-1","description":"\u003cp\u003e\u003cspan\u003eSeals between the exhaust elbow \u0026amp; exhaust manifold on Mercruiser 165, 470, and 3.7L marine engines with aluminum exhaust manifold.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eMercruiser 224 CID Exhaust Elbow Gasket | Sierra 18-0881-1\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSierra exhaust elbow gasket\u003c\/li\u003e\n\u003cli\u003eFor Mercruiser 165, 170, 180, 190, 3.7 engines used from 1987-1989 with aluminum manifold\u003c\/li\u003e\n\u003cli\u003eReplaces Mercury Marine 27-18272 and 27-97863\u003c\/li\u003e\n\u003cli\u003eReplaces Mallory 9-61412\u003c\/li\u003e\n\u003cli\u003eReplaces Sierra 18-0881\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":38043201929411,"sku":"SIERRA-18-0881-1","price":16.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Mercruiser-224-CID-Exhaust-Elbow-Gasket-Sierra-18-0881-1.jpg?v=1776954946"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/collections\/marine-engine-gaskets-macombmarineparts_com.jpg?v=1776993043","url":"https:\/\/www.macombmarineparts.com\/collections\/marine-engine-gaskets.oembed?page=10","provider":"MacombMarineParts.com","version":"1.0","type":"link"}