{"product_id":"mercury-mercruiser-thermostat-kit-fits-1983aeu-2016-gm-vaeu-6-and-vaeu-8-engines-807252t4","title":"Mercury – 140°F Thermostat Kit | For V6 \u0026 V8 MerCruiser Engines (1983–2016) | 807252T4","description":"\u003cp data-start=\"0\" data-end=\"92\"\u003e\u003cstrong data-start=\"0\" data-end=\"90\"\u003eMercury – 140°F Thermostat Kit | For V6 \u0026amp; V8 MerCruiser Engines (1983–2016) | 807252T4\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"94\" data-end=\"97\"\u003e\n\u003ch3 data-start=\"99\" data-end=\"117\"\u003e\u003cstrong data-start=\"103\" data-end=\"115\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"118\" data-end=\"644\"\u003eReliable engine cooling starts with the right thermostat. The \u003cstrong data-start=\"180\" data-end=\"222\"\u003eMercury Marine 807252T4 Thermostat Kit\u003c\/strong\u003e is a \u003cstrong data-start=\"228\" data-end=\"253\"\u003e140°F OEM replacement\u003c\/strong\u003e designed for \u003cstrong data-start=\"267\" data-end=\"322\"\u003eV6 and V8 MerCruiser sterndrive and inboard engines\u003c\/strong\u003e built by \u003cstrong data-start=\"332\" data-end=\"362\"\u003eGeneral Motors (1983–2016)\u003c\/strong\u003e. This kit maintains the correct engine temperature for smooth performance, optimal fuel efficiency, and lasting protection. Whether you’re idling in the marina or pushing your boat hard offshore, this thermostat helps your engine stay cool, consistent, and dependable every time.\u003c\/p\u003e\n\u003chr data-start=\"646\" data-end=\"649\"\u003e\n\u003ch3 data-start=\"651\" data-end=\"673\"\u003e\u003cstrong data-start=\"655\" data-end=\"671\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"676\" data-end=\"771\"\u003e\n\u003cstrong data-start=\"676\" data-end=\"688\"\u003ePurpose:\u003c\/strong\u003e Regulates cooling system temperature to protect and optimize engine performance.\u003c\/li\u003e\n\u003cli data-start=\"774\" data-end=\"875\"\u003e\n\u003cstrong data-start=\"774\" data-end=\"797\"\u003eTemperature Rating:\u003c\/strong\u003e Opens at \u003cstrong data-start=\"807\" data-end=\"816\"\u003e140°F\u003c\/strong\u003e, ideal for standard-cooled V6 and V8 MerCruiser engines.\u003c\/li\u003e\n\u003cli data-start=\"878\" data-end=\"968\"\u003e\n\u003cstrong data-start=\"878\" data-end=\"896\"\u003eCompatibility:\u003c\/strong\u003e Fits \u003cstrong data-start=\"902\" data-end=\"965\"\u003eGM-built V6 \u0026amp; V8 sterndrive and inboard engines (1983–2016)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"971\" data-end=\"1064\"\u003e\n\u003cstrong data-start=\"971\" data-end=\"988\"\u003eComplete Kit:\u003c\/strong\u003e Includes \u003cstrong data-start=\"998\" data-end=\"1034\"\u003ethermostat, O-rings, and gaskets\u003c\/strong\u003e for a complete replacement.\u003c\/li\u003e\n\u003cli data-start=\"1067\" data-end=\"1168\"\u003e\n\u003cstrong data-start=\"1067\" data-end=\"1092\"\u003eEase of Installation:\u003c\/strong\u003e Installs easily using standard hand tools with no modifications required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1170\" data-end=\"1173\"\u003e\n\u003ch3 data-start=\"1175\" data-end=\"1212\"\u003e\u003cstrong data-start=\"1179\" data-end=\"1210\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1215\" data-end=\"1312\"\u003e\n\u003cstrong data-start=\"1215\" data-end=\"1270\"\u003eV6 and V8 MerCruiser sterndrive and inboard engines\u003c\/strong\u003e built by \u003cstrong data-start=\"1280\" data-end=\"1310\"\u003eGeneral Motors (1983–2016)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1315\" data-end=\"1371\"\u003eFor engines equipped with \u003cstrong data-start=\"1341\" data-end=\"1369\"\u003estandard cooling systems\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1373\" data-end=\"1376\"\u003e\n\u003ch3 data-start=\"1378\" data-end=\"1421\"\u003e\u003cstrong data-start=\"1382\" data-end=\"1419\"\u003ePerformance \u0026amp; Real-World Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1422\" data-end=\"1854\"\u003eThe \u003cstrong data-start=\"1426\" data-end=\"1449\"\u003e807252T4 thermostat\u003c\/strong\u003e is a small but vital part of your cooling system. It ensures your engine warms up quickly, maintains a consistent operating temperature, and prevents overheating or inefficient running. If your thermostat sticks open, your engine may never reach its ideal temperature; if it sticks closed, it can overheat quickly. This OEM replacement solves both problems, restoring smooth, efficient cooling control.\u003c\/p\u003e\n\u003cp data-start=\"1856\" data-end=\"2097\"\u003eMade from corrosion-resistant materials, it’s built to withstand constant exposure to water, heat, and vibration. Once installed, it helps your engine run cleaner, last longer, and deliver better performance and fuel economy on every trip.\u003c\/p\u003e\n\u003chr data-start=\"2099\" data-end=\"2102\"\u003e\n\u003ch3 data-start=\"2104\" data-end=\"2136\"\u003e\u003cstrong data-start=\"2108\" data-end=\"2134\"\u003eWhy Choose Mercury OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2137\" data-end=\"2352\"\u003eThe \u003cstrong data-start=\"2141\" data-end=\"2161\"\u003eMercury 807252T4\u003c\/strong\u003e is a \u003cstrong data-start=\"2167\" data-end=\"2204\"\u003egenuine Mercury Marine thermostat\u003c\/strong\u003e, built to exact factory standards. Aftermarket thermostats may not open at the correct temperature or may degrade quickly in marine environments.\u003c\/p\u003e\n\u003cp data-start=\"2354\" data-end=\"2629\"\u003eMercury OEM thermostats are rigorously tested for temperature accuracy, corrosion resistance, and long-term durability. It’s the same thermostat installed by Mercury technicians and found in new MerCruiser engines, giving you confidence and consistent cooling every season.\u003c\/p\u003e\n\u003chr data-start=\"2631\" data-end=\"2634\"\u003e\n\u003ch3 data-start=\"2636\" data-end=\"2649\"\u003e\u003cstrong data-start=\"2640\" data-end=\"2647\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2651\" data-end=\"2800\"\u003e\u003cstrong data-start=\"2651\" data-end=\"2697\"\u003eQ1: What engines does this thermostat fit?\u003c\/strong\u003e\u003cbr data-start=\"2697\" data-end=\"2700\"\u003eIt’s made for \u003cstrong data-start=\"2714\" data-end=\"2767\"\u003eGM-built V6 and V8 MerCruiser engines (1983–2016)\u003c\/strong\u003e with standard cooling systems.\u003c\/p\u003e\n\u003cp data-start=\"2802\" data-end=\"2926\"\u003e\u003cstrong data-start=\"2802\" data-end=\"2843\"\u003eQ2: What’s the operating temperature?\u003c\/strong\u003e\u003cbr data-start=\"2843\" data-end=\"2846\"\u003eThis thermostat opens at \u003cstrong data-start=\"2871\" data-end=\"2880\"\u003e140°F\u003c\/strong\u003e, maintaining proper cooling system balance.\u003c\/p\u003e\n\u003cp data-start=\"2928\" data-end=\"3030\"\u003e\u003cstrong data-start=\"2928\" data-end=\"2958\"\u003eQ3: What comes in the kit?\u003c\/strong\u003e\u003cbr data-start=\"2958\" data-end=\"2961\"\u003eThe kit includes the \u003cstrong data-start=\"2982\" data-end=\"3027\"\u003ethermostat, O-rings, and multiple gaskets\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"3032\" data-end=\"3148\"\u003e\u003cstrong data-start=\"3032\" data-end=\"3063\"\u003eQ4: Is installation simple?\u003c\/strong\u003e\u003cbr data-start=\"3063\" data-end=\"3066\"\u003eYes — it’s a \u003cstrong data-start=\"3079\" data-end=\"3109\"\u003edirect-fit OEM replacement\u003c\/strong\u003e that installs with basic hand tools.\u003c\/p\u003e\n\u003cp data-start=\"3150\" data-end=\"3338\"\u003e\u003cstrong data-start=\"3150\" data-end=\"3189\"\u003eQ5: Why OEM instead of aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3189\" data-end=\"3192\"\u003eBecause \u003cstrong data-start=\"3200\" data-end=\"3227\"\u003eMercury OEM thermostats\u003c\/strong\u003e are precisely calibrated and built to last in marine environments, ensuring reliable performance every time.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936191205667,"sku":"807252T4","price":53.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/807252t4_main.jpg?v=1760631235","url":"https:\/\/partsvu.com\/en-au\/products\/mercury-mercruiser-thermostat-kit-fits-1983aeu-2016-gm-vaeu-6-and-vaeu-8-engines-807252t4","provider":"PartsVu","version":"1.0","type":"link"}