{"product_id":"thermostat-housing-assembly-kit-for-mag-mercruiser-4-3-6-3l-mpi-350-863457a2","title":"Thermostat Housing Assembly Kit for MAG MerCruiser 4.3 6.3L MPI 350 863457A2","description":"\u003cstrong\u003eThis Thermostat Housing Assembly Kit is a replacement thermostat housing compatible with MAG MerCruiser 4.3-6.3L MPI 350 engines and matches OEM Part# 863457A.\u003c\/strong\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003eThis Thermostat Housing Assembly Kit is a direct replacement for MAG MerCruiser 4.3L to 6.3L MPI 350 engines. It controls engine coolant flow to maintain optimal operating temperature. Designed for marine mechanics and boat owners, this kit includes the housing and necessary components for a complete repair.\u003ch3\u003eKey Features \u0026amp; Performance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined housing for leak-free seal\u003c\/li\u003e\n\u003cli\u003eIncludes gasket and fasteners for easy installation\u003c\/li\u003e\n\u003cli\u003eCompatible with MerCruiser 4.3L, 5.0L, 5.7L, 6.2L, and 6.3L MPI 350 engines\u003c\/li\u003e\n\u003cli\u003eOEM replacement part number 863457A ensures fitment\u003c\/li\u003e\n\u003cli\u003eDurable construction withstands marine engine conditions\u003c\/li\u003e\n\u003cli\u003eRestores proper thermostat operation for efficient cooling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMAG MerCruiser 4.3L MPI 350\u003c\/li\u003e\n\u003cli\u003eMAG MerCruiser 5.0L MPI 350\u003c\/li\u003e\n\u003cli\u003eMAG MerCruiser 5.7L MPI 350\u003c\/li\u003e\n\u003cli\u003eMAG MerCruiser 6.2L MPI 350\u003c\/li\u003e\n\u003cli\u003eMAG MerCruiser 6.3L MPI 350\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReplacing failed thermostat housings on MerCruiser marine engines\u003c\/li\u003e\n\u003cli\u003eOverheating repairs on inboard and sterndrive boats\u003c\/li\u003e\n\u003cli\u003eRoutine maintenance of cooling system components\u003c\/li\u003e\n\u003cli\u003eUpgrading to OEM-spec housing for reliability\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 863457A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engines:\u003c\/strong\u003e MerCruiser 4.3-6.3L MPI 350\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this housing kit compatible with MerCruiser 4.3L Alpha One?\u003cstrong\u003e A:\u003c\/strong\u003e Yes, it fits MerCruiser 4.3L MPI 350 engines, including Alpha One and Bravo drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does the kit include a thermostat?\u003cstrong\u003e A:\u003c\/strong\u003e This is a thermostat housing assembly kit; it includes the housing and gasket but the thermostat itself may be sold separately.\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":53676763709713,"sku":"ZZ2Y02421","price":659.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/2446\/2929\/files\/57_b731d35f-be57-4d8c-aa18-fe8e87879be2.jpg?v=1781577820","url":"https:\/\/www.duraforce.com\/products\/thermostat-housing-assembly-kit-for-mag-mercruiser-4-3-6-3l-mpi-350-863457a2","provider":"DURAFORCE","version":"1.0","type":"link"}