{"product_id":"heat-exchanger-end-gasket-4-inch-for-mercruiser-4-cyl-3-7l-65128-18-0389-27-99960","title":"Heat Exchanger End Gasket 4 Inch for MerCruiser 4 Cyl 3.7L 65128 18 0389 27 99960","description":"\u003cstrong\u003eThis Heat Exchanger End Gasket is a replacement gasket compatible with MerCruiser 4 Cyl 3.7L engines and matches OEM Part# 65128, 18-0389, 27-99960.\u003c\/strong\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThis heat exchanger end gasket is designed for the MerCruiser 4-cylinder 3.7L engine cooling system. It seals the end cover of the heat exchanger to prevent coolant leaks and maintain efficient engine temperature regulation. Ideal for boat owners and marine mechanics servicing MerCruiser 3.7L powerplants.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Performance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePrecision-cut gasket material for a secure, leak-free seal\u003c\/li\u003e\n\u003cli\u003eDirect replacement for OEM part numbers 65128, 18-0389, and 27-99960\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the MerCruiser 3.7L four-cylinder heat exchanger\u003c\/li\u003e\n\u003cli\u003eResistant to heat, coolant, and marine environment conditions\u003c\/li\u003e\n\u003cli\u003eEasy installation with no modifications required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser 4-cylinder 3.7L engines (including models such as 470, 485, 488, etc.)\u003c\/li\u003e\n\u003cli\u003eCompatible with heat exchanger assemblies using OEM gasket part numbers listed\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReplacing worn or leaking heat exchanger end gaskets on MerCruiser sterndrive engines\u003c\/li\u003e\n\u003cli\u003eOverhauling the cooling system during routine marine engine maintenance\u003c\/li\u003e\n\u003cli\u003eEnsuring proper sealing after heat exchanger cleaning or inspection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number(s):\u003c\/strong\u003e 65128, 18-0389, 27-99960\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-temperature gasket material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 4 inches (approx.)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e MerCruiser 4 Cyl 3.7L heat exchanger end\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this gasket a direct replacement for the original MerCruiser part?\u003cstrong\u003e A:\u003c\/strong\u003e Yes, this gasket matches OEM part numbers 65128, 18-0389, and 27-99960 and is designed to fit the MerCruiser 3.7L heat exchanger end cover.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What material is the gasket made from?\u003cstrong\u003e A:\u003c\/strong\u003e The gasket is constructed from a high-temperature, coolant-resistant material suitable for marine cooling systems.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eProduct appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"DURAFORCE","offers":[{"title":"Default Title","offer_id":53676833177873,"sku":"ZZ2Y00508","price":26.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/2446\/2929\/files\/57_bdc853c2-48d9-430b-b5d9-7e01d91e1fc0.jpg?v=1781579026","url":"https:\/\/www.duraforce.com\/products\/heat-exchanger-end-gasket-4-inch-for-mercruiser-4-cyl-3-7l-65128-18-0389-27-99960","provider":"DURAFORCE","version":"1.0","type":"link"}