{"product_id":"mercury-housing-assembly-87290a4","title":"Mercury Housing Assembly #87290A4","description":"\u003ch2\u003eMercury Marine 87290A4 Thermostats \u0026amp; Parts\u003c\/h2\u003e\n\u003cp\u003eThe Mercury Marine Housing Assembly #87290A4 is a genuine OEM thermostat housing assembly engineered to maintain your engine's cooling system integrity and thermal regulation. The thermostat housing serves as the central hub of your engine's cooling circuit, directing coolant flow based on operating temperature and housing the thermostat that controls when coolant is routed through the system. A cracked, corroded, or warped housing can cause coolant leaks, overheating, and serious engine damage if left unaddressed.\u003c\/p\u003e\n\u003cp\u003eAt nearly 9 pounds, this is a substantial, precision-cast assembly built to Mercury's exacting OEM standards. Using a genuine Mercury Marine part guarantees a perfect fit with no gasket alignment issues, sealing problems, or compatibility concerns that can arise with aftermarket alternatives. The robust construction resists the thermal cycling, saltwater exposure, and vibration that are inherent to the marine environment, ensuring long-term reliability in even the most demanding conditions.\u003c\/p\u003e\n\u003cp\u003eWhether you're replacing a damaged housing after an overheating event or performing a comprehensive cooling system overhaul, the #87290A4 restores your engine's thermal management to factory specifications. Proper cooling system function is critical to engine longevity — this genuine Mercury assembly gives you the confidence that the job is done right, protecting your engine investment for seasons to come.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNormalized SKU:\u003c\/b\u003e 87290A4\u003cbr\u003e\u003cb\u003eUPC Code:\u003c\/b\u003e 745061201866\u003c\/p\u003e","brand":"Mercury Marine","offers":[{"title":"Default Title","offer_id":53356807291185,"sku":"MRC-87290A4","price":547.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/7184\/8291\/files\/mercury-housing-assembly-87290a4-745061201866-1229090753.jpg?v=1774434465","url":"https:\/\/www.firstchoicemarine.com\/products\/mercury-housing-assembly-87290a4","provider":"First Choice Marine","version":"1.0","type":"link"}