{"product_id":"molded-hose-marine-circulating-pump-hose-sierra-18-71337","title":"Molded Hose 18-71337 | Marine Circulating Pump Hose | Sierra","description":"\u003ch2\u003eMolded Hose | Marine Circulating Pump Hose | Sierra 18-71337 \u003c\/h2\u003e\n\u003cp\u003eMolded Hose | Marine Circulating Pump Hose | Sierra 18-71337\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eSIERRA Molded Hose 18-71337\u003c\/p\u003e\n\u003cul style=\"box-sizing: border-box; margin-top: 0px; margin-bottom: 2.5rem; color: #333333; font-family: Helvetica,;\"\u003e\n\u003cli style=\"box-sizing: border-box; margin-top: 0px; margin-bottom: 1rem; font-size: 13px; font-stretch: normal; line-height: 1.31; color: #4a515c;\"\u003eSierra molded hose\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; margin-top: 0px; margin-bottom: 1rem; font-size: 13px; font-stretch: normal; line-height: 1.31; color: #4a515c;\"\u003eFor specified Mercruies and OMC GM 4.3L, 5.0L, and 5.7L engines\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; margin-top: 0px; margin-bottom: 1rem; font-size: 13px; font-stretch: normal; line-height: 1.31; color: #4a515c;\"\u003e1 3\/4 in. inside diameter\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; margin-top: 0px; margin-bottom: 1rem; font-size: 13px; font-stretch: normal; line-height: 1.31; color: #4a515c;\"\u003e12 3\/4 in. long\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; margin-top: 0px; margin-bottom: 1rem; font-size: 13px; font-stretch: normal; line-height: 1.31; color: #4a515c;\"\u003eReplaces Mercury 32-33189, 32-861590A05, 32-861590A2, 32-861590A1, and 32-806825\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; margin-top: 0px; margin-bottom: 1rem; font-size: 13px; font-stretch: normal; line-height: 1.31; color: #4a515c;\"\u003eReplaces Mallory 9-44052\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003ch4 data-path-to-node=\"3\"\u003e\u003cstrong data-path-to-node=\"3\" data-index-in-node=\"0\"\u003eOptimize Your Engine with the Sierra 18-71337 Molded Hose\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"4\"\u003eMaintaining a marine engine requires high-quality parts to ensure safety. Therefore, the \u003cstrong data-path-to-node=\"4\" data-index-in-node=\"89\"\u003eSierra 18-71337 Molded Hose\u003c\/strong\u003e is an essential component for your cooling system. This specific hose connects the thermostat housing to the circulating water pump. Because it is a molded part, it fits perfectly without the need for excessive stretching. It is designed to handle the unique demands of the marine environment. Consequently, boaters choose this hose to prevent engine overheating during long trips.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"5\"\u003e\u003cstrong data-path-to-node=\"5\" data-index-in-node=\"0\"\u003eExpert Design and Durable Construction\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"6\"\u003eThe \u003cstrong data-path-to-node=\"6\" data-index-in-node=\"4\"\u003eSierra 18-71337 Molded Hose\u003c\/strong\u003e features a robust design that resists heat and pressure. For instance, the hose has an inside diameter of \u003cstrong data-path-to-node=\"6\" data-index-in-node=\"138\"\u003e1 3\/4 inches\u003c\/strong\u003e. Additionally, the overall length measures \u003cstrong data-path-to-node=\"6\" data-index-in-node=\"194\"\u003e12 3\/4 inches\u003c\/strong\u003e. These dimensions ensure a secure fit for GM-based engine blocks. Since it is made from premium rubber, it withstands the constant vibration of a running motor. Moreover, the molded shape allows for tight bends without kinking. This keeps the water flowing freely to protect your engine's internal parts.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"7\"\u003e\u003cstrong data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eBroad Compatibility for Common Marine Engines\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"8\"\u003eOne of the best features of this hose is its wide range of applications. Specifically, it is built for \u003cstrong data-path-to-node=\"8\" data-index-in-node=\"103\"\u003e4.3L, 5.0L, and 5.7L\u003c\/strong\u003e engines. It is a direct replacement for many original equipment manufacturer (OEM) parts. For example, it replaces the \u003cstrong data-path-to-node=\"8\" data-index-in-node=\"243\"\u003eMercruiser 32-87108\u003c\/strong\u003e and \u003cstrong data-path-to-node=\"8\" data-index-in-node=\"267\"\u003e32-33189\u003c\/strong\u003e. Furthermore, it is compatible with OMC and Volvo Penta cooling systems. Because of this versatility, it is a staple for marine mechanics. You can trust it to match the performance of your original factory hose.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"9\"\u003e\u003cstrong data-path-to-node=\"9\" data-index-in-node=\"0\"\u003eWhy Choose Molded Hoses Over Generic Options?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"10\"\u003eGeneric hoses often struggle with the complex angles found in boat engines. However, the \u003cstrong data-path-to-node=\"10\" data-index-in-node=\"89\"\u003eSierra 18-71337 Molded Hose\u003c\/strong\u003e is shaped specifically for your cooling path. This pre-molded design eliminates the stress on connection points. In addition, it reduces the risk of the hose slipping off during high-speed operation. Since it is engineered for marine use, it also resists salt and chemical degradation. Ultimately, choosing a molded part saves you time during installation and provides better peace of mind.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"11\"\u003e\u003cstrong data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eReliable Cooling for Long-Term Performance\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"12\"\u003eA leaking hose can lead to a costly engine failure in minutes. Thus, proactive replacement is a smart maintenance strategy. By installing the \u003cstrong data-path-to-node=\"12\" data-index-in-node=\"142\"\u003eSierra 18-71337\u003c\/strong\u003e, you ensure your cooling system remains airtight. Sierra is a leader in aftermarket marine parts for a reason. Their products meet or exceed the standards set by original boat builders. Therefore, you get professional-grade reliability at a more affordable price point. Keep your engine running cool and enjoy your time on the water without worry.\u003c\/p\u003e\n\u003chr data-path-to-node=\"13\"\u003e\n\u003ch5 data-path-to-node=\"14\"\u003e\u003cstrong data-path-to-node=\"14\" data-index-in-node=\"0\"\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h5\u003e\n\u003ch4 data-path-to-node=\"15\"\u003e\u003cstrong data-path-to-node=\"15\" data-index-in-node=\"0\"\u003eWhat engines does the Sierra 18-71337 fit?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"16\"\u003eThis hose is designed for GM-based V6 and V8 engines. It fits most 4.3L, 5.0L, and 5.7L models from Mercruiser, OMC, and Volvo Penta.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"17\"\u003e\u003cstrong data-path-to-node=\"17\" data-index-in-node=\"0\"\u003eWhat are the dimensions of this hose?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"18\"\u003eThe hose has an internal diameter of \u003cstrong data-path-to-node=\"18\" data-index-in-node=\"37\"\u003e1.75 inches\u003c\/strong\u003e. The total length of the component is \u003cstrong data-path-to-node=\"18\" data-index-in-node=\"87\"\u003e12.75 inches\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"19\"\u003e\u003cstrong data-path-to-node=\"19\" data-index-in-node=\"0\"\u003eIs this hose a direct replacement for Mercruiser parts?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"20\"\u003eYes, it replaces several Mercruiser numbers, including \u003cstrong data-path-to-node=\"20\" data-index-in-node=\"55\"\u003e32-87108\u003c\/strong\u003e and \u003cstrong data-path-to-node=\"20\" data-index-in-node=\"68\"\u003e32-33189A1\u003c\/strong\u003e. It is built to OEM specifications for a perfect fit.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"21\"\u003e\u003cstrong data-path-to-node=\"21\" data-index-in-node=\"0\"\u003eDoes the kit include hose clamps?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"22\"\u003eGenerally, the hose is sold individually. You should inspect your current clamps and replace them if they show signs of rust or wear.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":38043576926403,"sku":"SIERRA-18-71337","price":55.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Molded-Hose-18-71337-Marine-Circulating-Pump-Hose-Sierra.jpg?v=1776961311","url":"https:\/\/www.macombmarineparts.com\/products\/molded-hose-marine-circulating-pump-hose-sierra-18-71337","provider":"MacombMarineParts.com","version":"1.0","type":"link"}