{"product_id":"heat-exchanger-end-gasket-4-for-mercruiser-4-cyl-3-7l-65128-18-0389-27-99960","title":"Heat Exchanger End Gasket 4” for MerCruiser 4 Cyl 3.7L- 65128, 18-0389, 27-99960","description":"\u003ch2\u003eHeat Exchanger End Gasket 4\" for MerCruiser 4 Cyl 3.7L\u003c\/h2\u003e\u003cp\u003eThis heat exchanger end gasket provides a reliable seal for the end cap of the heat exchanger on MerCruiser 4 Cyl 3.7L engines, with OEM cross-reference numbers 65128, 18-0389, 27-99960.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis heat exchanger end gasket is designed to replace the worn gasket between the heat exchanger end cap and the housing on MerCruiser 4 Cyl 3.7L engines. It ensures a leak-free seal to maintain proper cooling system pressure, making it ideal for boat owners and marine mechanics performing routine maintenance. The gasket is a direct-fit replacement for OEM numbers 65128, 18-0389, and 27-99960.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eConstructed from high-quality gasket material resistant to heat and coolant corrosion\u003c\/li\u003e\n\u003cli\u003ePrecisely cut to match the 4-inch end cap diameter for a snug fit\u003c\/li\u003e\n\u003cli\u003eReplaces factory gasket to restore original sealing performance\u003c\/li\u003e\n\u003cli\u003eEngineered to withstand the pressure and temperature extremes of marine cooling systems\u003c\/li\u003e\n\u003cli\u003eDirect replacement for multiple OEM part numbers ensure compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor MerCruiser 4 Cyl 3.7L engines (includes models: 470, 485, 488, 898, 228, 260, 485, 488)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCommonly used when servicing the heat exchanger on inboard MerCruiser sterndrive engines\u003c\/li\u003e\n\u003cli\u003eIdeal for replacing the end gasket during coolant system overhaul or winterization\u003c\/li\u003e\n\u003cli\u003eSuitable for use on boats with MerCruiser 3.7L four-cylinder powerplants\u003c\/li\u003e\n\u003cli\u003eUsed by marine technicians to prevent coolant leaks and overheating\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e65128, 18-0389, 27-99960\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePremium gasket material\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMerCruiser 4 Cyl 3.7L heat exchanger end\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this gasket fit other MerCruiser models? \u003cstrong\u003eA:\u003c\/strong\u003e This gasket is specifically designed for the 4-inch end cap on MerCruiser 4 Cyl 3.7L engines; confirm your heat exchanger end cap diameter matches before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I reuse the old gasket? \u003cstrong\u003eA:\u003c\/strong\u003e No, gaskets are designed for one-time use; reusing an old gasket can lead to leaks and overheating, so always install a new gasket during service.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44957590192214,"sku":"ZZ2Y00508","price":26.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/57_67dc46a7-9180-4371-8e5a-86121ebb1ad0.jpg?v=1781569131","url":"https:\/\/www.solidspare.com\/products\/heat-exchanger-end-gasket-4-for-mercruiser-4-cyl-3-7l-65128-18-0389-27-99960","provider":"Solid Spare","version":"1.0","type":"link"}