{"product_id":"mercury-thermostat-housing-gasket-fits-mcm-mie-gm-vaeu-6-vaeu-8-engines-27-41812","title":"Mercury – Quicksilver Thermostat Gasket | Cooling System Seal | Marine Composite | 41812","description":"\u003cp data-start=\"0\" data-end=\"94\"\u003e\u003cstrong data-start=\"0\" data-end=\"92\"\u003eMercury – Quicksilver Thermostat Gasket | Cooling System Seal | Marine Composite | 41812\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"96\" data-end=\"99\"\u003e\n\u003ch3 data-start=\"101\" data-end=\"119\"\u003e\u003cstrong data-start=\"105\" data-end=\"117\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"120\" data-end=\"704\"\u003eWhen you’re working on your MerCruiser’s thermostat, this little gasket is the part that makes the whole job count. The \u003cstrong data-start=\"240\" data-end=\"294\"\u003eMercury Marine 41812 Quicksilver Thermostat Gasket\u003c\/strong\u003e seals the housing to keep coolant where it belongs — inside the system, not dripping down your engine. Made for \u003cstrong data-start=\"407\" data-end=\"439\"\u003eMerCruiser V6 and V8 engines\u003c\/strong\u003e, it’s cut to exact factory specs and built from a durable marine-grade composite that stands up to heat, vibration, and constant exposure to water. It’s one of those parts you don’t notice when it’s doing its job right — but you’ll definitely notice if it’s not.\u003c\/p\u003e\n\u003chr data-start=\"706\" data-end=\"709\"\u003e\n\u003ch3 data-start=\"711\" data-end=\"733\"\u003e\u003cstrong data-start=\"715\" data-end=\"731\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"736\" data-end=\"838\"\u003e\n\u003cstrong data-start=\"736\" data-end=\"748\"\u003ePurpose:\u003c\/strong\u003e Keeps the thermostat housing sealed tight to maintain proper cooling and prevent leaks.\u003c\/li\u003e\n\u003cli data-start=\"841\" data-end=\"952\"\u003e\n\u003cstrong data-start=\"841\" data-end=\"854\"\u003eMaterial:\u003c\/strong\u003e Built from \u003cstrong data-start=\"866\" data-end=\"900\"\u003ehigh-strength marine composite\u003c\/strong\u003e that resists heat, pressure, and coolant contact.\u003c\/li\u003e\n\u003cli data-start=\"955\" data-end=\"1053\"\u003e\n\u003cstrong data-start=\"955\" data-end=\"966\"\u003eDesign:\u003c\/strong\u003e Cut precisely to \u003cstrong data-start=\"984\" data-end=\"1021\"\u003eMercury’s original specifications\u003c\/strong\u003e for a perfect, leak-free fit.\u003c\/li\u003e\n\u003cli data-start=\"1056\" data-end=\"1187\"\u003e\n\u003cstrong data-start=\"1056\" data-end=\"1072\"\u003ePerformance:\u003c\/strong\u003e Helps your engine stay at the correct operating temperature for better fuel efficiency and smoother performance.\u003c\/li\u003e\n\u003cli data-start=\"1190\" data-end=\"1288\"\u003e\n\u003cstrong data-start=\"1190\" data-end=\"1205\"\u003eDurability:\u003c\/strong\u003e Withstands years of heating, cooling, and vibration without warping or cracking.\u003c\/li\u003e\n\u003cli data-start=\"1291\" data-end=\"1373\"\u003e\n\u003cstrong data-start=\"1291\" data-end=\"1309\"\u003eCompatibility:\u003c\/strong\u003e Fits \u003cstrong data-start=\"1315\" data-end=\"1370\"\u003eMerCruiser V6 and V8 sterndrive and inboard engines\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1375\" data-end=\"1378\"\u003e\n\u003ch3 data-start=\"1380\" data-end=\"1417\"\u003e\u003cstrong data-start=\"1384\" data-end=\"1415\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1420\" data-end=\"1498\"\u003e\n\u003cstrong data-start=\"1433\" data-end=\"1465\"\u003eMerCruiser V6 and V8 engines\u003c\/strong\u003e with flat thermostat housings.\u003c\/li\u003e\n\u003cli data-start=\"1501\" data-end=\"1581\"\u003eCommon on \u003cstrong data-start=\"1511\" data-end=\"1578\"\u003erunabouts, cruisers, performance boats, and classic sterndrives\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1584\" data-end=\"1646\"\u003ePerforms equally well in \u003cstrong data-start=\"1609\" data-end=\"1636\"\u003efreshwater or saltwater\u003c\/strong\u003e setups.\u003c\/li\u003e\n\u003cli data-start=\"1649\" data-end=\"1742\"\u003eAlways confirm your thermostat type in your \u003cstrong data-start=\"1693\" data-end=\"1722\"\u003eowner’s or service manual\u003c\/strong\u003e before replacing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1744\" data-end=\"1747\"\u003e\n\u003ch3 data-start=\"1749\" data-end=\"1791\"\u003e\u003cstrong data-start=\"1753\" data-end=\"1789\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1792\" data-end=\"2037\"\u003eThe \u003cstrong data-start=\"1796\" data-end=\"1812\"\u003e41812 gasket\u003c\/strong\u003e plays a simple but important role — it keeps coolant pressure stable and stops leaks that can cause overheating. A tight seal means steady temperature control, which helps your MerCruiser run smoother and more efficiently.\u003c\/p\u003e\n\u003cp data-start=\"2039\" data-end=\"2317\"\u003eOld gaskets can dry out, flatten, or lose their grip over time. Replacing it during a thermostat service takes just a few minutes and can save you from coolant leaks or costly engine wear later. It’s a small fix that brings real peace of mind every time you fire up your boat.\u003c\/p\u003e\n\u003chr data-start=\"2319\" data-end=\"2322\"\u003e\n\u003ch3 data-start=\"2324\" data-end=\"2359\"\u003e\u003cstrong data-start=\"2328\" data-end=\"2357\"\u003eWhy Use Mercury OEM Parts\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2360\" data-end=\"2630\"\u003eThe \u003cstrong data-start=\"2364\" data-end=\"2385\"\u003eQuicksilver 41812\u003c\/strong\u003e is a \u003cstrong data-start=\"2391\" data-end=\"2424\"\u003egenuine Mercury Marine gasket\u003c\/strong\u003e, built from the same material and shape your engine came with from the factory. Aftermarket gaskets might look close, but small differences in size or thickness can cause uneven sealing or coolant leaks.\u003c\/p\u003e\n\u003cp data-start=\"2632\" data-end=\"2875\"\u003eMercury’s OEM parts are tested for temperature and pressure under real boating conditions, so you know they’ll last. You’re not just buying a gasket — you’re buying a seal you can trust when the engine’s running hot and the water gets rough.\u003c\/p\u003e\n\u003chr data-start=\"2877\" data-end=\"2880\"\u003e\n\u003ch3 data-start=\"2882\" data-end=\"2895\"\u003e\u003cstrong data-start=\"2886\" data-end=\"2893\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2897\" data-end=\"3013\"\u003e\u003cstrong data-start=\"2897\" data-end=\"2933\"\u003eQ1: Which engines does this fit?\u003c\/strong\u003e\u003cbr data-start=\"2933\" data-end=\"2936\"\u003eIt fits \u003cstrong data-start=\"2944\" data-end=\"2976\"\u003eMerCruiser V6 and V8 engines\u003c\/strong\u003e with standard thermostat housings.\u003c\/p\u003e\n\u003cp data-start=\"3015\" data-end=\"3161\"\u003e\u003cstrong data-start=\"3015\" data-end=\"3058\"\u003eQ2: Why replace it with the thermostat?\u003c\/strong\u003e\u003cbr data-start=\"3058\" data-end=\"3061\"\u003eOld gaskets flatten and lose their seal, which can cause leaks. It’s best to replace both at once.\u003c\/p\u003e\n\u003cp data-start=\"3163\" data-end=\"3282\"\u003e\u003cstrong data-start=\"3163\" data-end=\"3191\"\u003eQ3: What’s it made from?\u003c\/strong\u003e\u003cbr data-start=\"3191\" data-end=\"3194\"\u003eA \u003cstrong data-start=\"3196\" data-end=\"3231\"\u003emarine-grade composite material\u003c\/strong\u003e designed to handle pressure, heat, and moisture.\u003c\/p\u003e\n\u003cp data-start=\"3284\" data-end=\"3388\"\u003e\u003cstrong data-start=\"3284\" data-end=\"3318\"\u003eQ4: Will it work in saltwater?\u003c\/strong\u003e\u003cbr data-start=\"3318\" data-end=\"3321\"\u003eYes — it’s made to last in both salt and freshwater environments.\u003c\/p\u003e\n\u003cp data-start=\"3390\" data-end=\"3507\"\u003e\u003cstrong data-start=\"3390\" data-end=\"3425\"\u003eQ5: Why OEM instead of generic?\u003c\/strong\u003e\u003cbr data-start=\"3425\" data-end=\"3428\"\u003eOEM gaskets fit exactly and stay sealed longer — cheaper options often don’t.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46940853305635,"sku":"27-41812","price":6.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/41812.jpg?v=1698814896","url":"https:\/\/partsvu.com\/en-mx\/products\/mercury-thermostat-housing-gasket-fits-mcm-mie-gm-vaeu-6-vaeu-8-engines-27-41812","provider":"PartsVu","version":"1.0","type":"link"}