{"product_id":"mercury-outboard-143-degree-thermostat-833072003","title":"Mercury – Quicksilver 833072003 143°F Thermostat | Mercury 75–115HP OptiMax Outboards | 833072003","description":"\u003cp data-start=\"0\" data-end=\"103\"\u003e\u003cstrong data-start=\"0\" data-end=\"101\"\u003eMercury – Quicksilver 833072003 143°F Thermostat | Mercury 75–115HP OptiMax Outboards | 833072003\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"105\" data-end=\"108\"\u003e\n\u003ch3 data-start=\"110\" data-end=\"128\"\u003e\u003cstrong data-start=\"114\" data-end=\"126\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"129\" data-end=\"500\"\u003eKeeping your outboard at the right temperature means better performance and a longer life. The \u003cstrong data-start=\"224\" data-end=\"260\"\u003eQuicksilver 833072003 Thermostat\u003c\/strong\u003e is a \u003cstrong data-start=\"266\" data-end=\"291\"\u003e143°F OEM replacement\u003c\/strong\u003e designed for \u003cstrong data-start=\"305\" data-end=\"368\"\u003eMercury 75–115HP OptiMax outboards (serial 1B227000 and up)\u003c\/strong\u003e. It regulates coolant flow so your motor warms up quickly and stays at its ideal operating temperature, no matter the conditions.\u003c\/p\u003e\n\u003cp data-start=\"502\" data-end=\"701\"\u003eBuilt from corrosion-resistant materials and factory-calibrated for precision, this thermostat ensures your engine runs efficiently, delivers full power, and avoids overheating or running too cool.\u003c\/p\u003e\n\u003chr data-start=\"703\" data-end=\"706\"\u003e\n\u003ch3 data-start=\"708\" data-end=\"730\"\u003e\u003cstrong data-start=\"712\" data-end=\"728\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"733\" data-end=\"840\"\u003e\n\u003cstrong data-start=\"733\" data-end=\"745\"\u003ePurpose:\u003c\/strong\u003e Maintains the proper 143°F engine temperature for smooth performance and maximum efficiency.\u003c\/li\u003e\n\u003cli data-start=\"843\" data-end=\"957\"\u003e\n\u003cstrong data-start=\"843\" data-end=\"856\"\u003eMaterial:\u003c\/strong\u003e Made from \u003cstrong data-start=\"867\" data-end=\"909\"\u003emarine-grade stainless steel and brass\u003c\/strong\u003e, built to handle constant heat and corrosion.\u003c\/li\u003e\n\u003cli data-start=\"960\" data-end=\"1088\"\u003e\n\u003cstrong data-start=\"960\" data-end=\"976\"\u003ePerformance:\u003c\/strong\u003e Keeps the cooling system working right, preventing overcooling or overheating in demanding marine conditions.\u003c\/li\u003e\n\u003cli data-start=\"1091\" data-end=\"1205\"\u003e\n\u003cstrong data-start=\"1091\" data-end=\"1102\"\u003eDesign:\u003c\/strong\u003e OEM thermostat tuned specifically for \u003cstrong data-start=\"1141\" data-end=\"1179\"\u003eMercury 75–115HP OptiMax outboards\u003c\/strong\u003e (serial 1B227000 \u0026amp; up).\u003c\/li\u003e\n\u003cli data-start=\"1208\" data-end=\"1325\"\u003e\n\u003cstrong data-start=\"1208\" data-end=\"1234\"\u003eEase of Use \/ Install:\u003c\/strong\u003e Simple replacement that installs easily with standard tools — no modifications required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1327\" data-end=\"1330\"\u003e\n\u003ch3 data-start=\"1332\" data-end=\"1369\"\u003e\u003cstrong data-start=\"1336\" data-end=\"1367\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1372\" data-end=\"1449\"\u003eMercury 75HP, 90HP, and 115HP OptiMax outboards (serial 1B227000 and newer)\u003c\/li\u003e\n\u003cli data-start=\"1452\" data-end=\"1520\"\u003eCommon on bay boats, center consoles, and performance fishing rigs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1522\" data-end=\"1525\"\u003e\n\u003ch3 data-start=\"1527\" data-end=\"1570\"\u003e\u003cstrong data-start=\"1531\" data-end=\"1568\"\u003ePerformance \u0026amp; Real-World Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1571\" data-end=\"1878\"\u003eThe \u003cstrong data-start=\"1575\" data-end=\"1599\"\u003e833072003 thermostat\u003c\/strong\u003e helps your engine reach the correct temperature quickly and maintain it under load. A thermostat that sticks open or closed can cause poor fuel economy, loss of power, or even engine wear. This OEM replacement restores smooth, efficient cooling and steady temperature control.\u003c\/p\u003e\n\u003cp data-start=\"1880\" data-end=\"2038\"\u003eYou’ll get faster warm-ups, consistent running temps, and better overall engine performance — the kind of reliability every boater wants before heading out.\u003c\/p\u003e\n\u003chr data-start=\"2040\" data-end=\"2043\"\u003e\n\u003ch3 data-start=\"2045\" data-end=\"2069\"\u003e\u003cstrong data-start=\"2049\" data-end=\"2067\"\u003eWhy Choose OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2070\" data-end=\"2287\"\u003eMercury’s thermostats are built to their exact specs and tested in real marine environments. Aftermarket versions may open at the wrong temperature or corrode prematurely, leading to uneven cooling or engine strain.\u003c\/p\u003e\n\u003cp data-start=\"2289\" data-end=\"2439\"\u003eA \u003cstrong data-start=\"2291\" data-end=\"2325\"\u003egenuine Quicksilver thermostat\u003c\/strong\u003e fits perfectly, responds precisely, and lasts longer — the same quality Mercury installs on every new outboard.\u003c\/p\u003e\n\u003chr data-start=\"2441\" data-end=\"2444\"\u003e\n\u003ch3 data-start=\"2446\" data-end=\"2459\"\u003e\u003cstrong data-start=\"2450\" data-end=\"2457\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2460\" data-end=\"2587\"\u003e\u003cstrong data-start=\"2460\" data-end=\"2501\"\u003eQ1: What engines fit this thermostat?\u003c\/strong\u003e\u003cbr data-start=\"2501\" data-end=\"2504\"\u003eA: It fits \u003cstrong data-start=\"2515\" data-end=\"2553\"\u003eMercury 75–115HP OptiMax outboards\u003c\/strong\u003e, serial \u003cstrong data-start=\"2562\" data-end=\"2584\"\u003e1B227000 and newer\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2589\" data-end=\"2680\"\u003e\u003cstrong data-start=\"2589\" data-end=\"2630\"\u003eQ2: What temperature is it rated for?\u003c\/strong\u003e\u003cbr data-start=\"2630\" data-end=\"2633\"\u003eA: It’s designed to open at \u003cstrong data-start=\"2661\" data-end=\"2677\"\u003e143°F (62°C)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2682\" data-end=\"2802\"\u003e\u003cstrong data-start=\"2682\" data-end=\"2712\"\u003eQ3: Is it easy to install?\u003c\/strong\u003e\u003cbr data-start=\"2712\" data-end=\"2715\"\u003eA: Yes. Remove the old thermostat, drop this one in, and tighten with standard tools.\u003c\/p\u003e\n\u003cp data-start=\"2804\" data-end=\"2935\"\u003e\u003cstrong data-start=\"2804\" data-end=\"2844\"\u003eQ4: How often should it be replaced?\u003c\/strong\u003e\u003cbr data-start=\"2844\" data-end=\"2847\"\u003eA: Check it annually and replace it every few seasons or if temperature issues appear.\u003c\/p\u003e\n\u003cp data-start=\"2937\" data-end=\"3079\"\u003e\u003cstrong data-start=\"2937\" data-end=\"2976\"\u003eQ5: Why OEM instead of aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"2976\" data-end=\"2979\"\u003eA: OEM thermostats ensure exact temperature calibration and longer life in salt or freshwater use.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626536853795,"sku":"833072003","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/833072003_main.jpg?v=1760631258","url":"https:\/\/partsvu.com\/en-ca\/products\/mercury-outboard-143-degree-thermostat-833072003","provider":"PartsVu","version":"1.0","type":"link"}