{"product_id":"mercury-850055001-outboard-thermostat-110","title":"Mercury – Replacement Thermostat | 2-Stroke 30-60HP Outboards | Quicksilver | 850055001","description":"\u003ch3\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – Replacement Thermostat | 2-Stroke 30-60HP Outboards | Quicksilver | 850055001\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThere’s something reassuring\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e about knowing your engine is running right where it should — not too hot, not too cold, just steady and strong. The \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury Quicksilver 850055001 Replacement Thermostat\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e keeps your outboard in that perfect temperature zone\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, so\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e you can focus on the water, not your gauges. W\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ehether you’re pushing through the backwater shallows or easing down a quiet river at sunrise, this part quietly does its job behind the scenes. It’s a small piece, sure, but \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eit’s one that keeps\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e your day on the water predictable and your motor running its best.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFor those who spend their weekends boating, fishing, or guiding family adventures, there’s comfort in parts that simply perform. That’s what you get here — dependable Mercury Marine quality designed to keep your engine’s heartbeat steady, trip after trip.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMaintains precise engine temperature for optimal performance and longevity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eDesigned specifically\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury and Mariner 2-Stroke 30-60HP outboards\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, including jet and BigFoot models\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eCo\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003enstructed from marine-grade \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ematerials\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e built to handle continuous exposure to water and heat\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngineered to Mercury Marine specifications for perfect fit and reliable operation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eStraightforward installation using \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ecommon\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e shop tools\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eTested for consistent response and long-term durability\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eFits \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury and Mariner 30-60 horsepower 2-stroke outboards\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eWo\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003erks with \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBigFoot\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e and \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ejet drive\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e configurations\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eCompatible with a wide range of small-to-mid-size boats, including \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003efishing boats, pontoons, runabouts,\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e and \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eutility skiffs\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for both \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003efreshwater and saltwater\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e conditions\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eA thermostat might not be the flashiest part on your motor, but you’ll feel its importance every time your engine fires up cleanly and stays smooth through the day. This \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQuicksilver 850055001\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e holds your Mercury outboard right in its optimal temperature range, ensuring efficient combustion, smooth idling, and strong throttle response.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eA steady-running engine doesn’t just perform better — it lasts longer. Overheating is one of the biggest threats to any motor, and this thermostat acts as a quiet guardian, opening and closing with precision to balance coolant flow and protect internal components. You’ll notice easier starts, steadier power delivery, and peace of mind knowing your system is regulating itself the way Mercury intended.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eInstallation is simple and direct. With basic tools and a little patience, most boat owners can replace it themselves. Once it’s in, you’ll feel that subtle but satisfying confidence that comes from knowing you did it right — and that it’s going to stay that way.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhen you choose a \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003egenuine Mercury Marine part\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, you’re choosing precision and reliability \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ethat’s been\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e proven on the water for decades. The \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e850055001 thermostat\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eis built\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e to the same standards as the one your engine left the factory with — no guessing, no adjustments, just the right fit and function every time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eAftermarket parts can look similar, but the differences show up when the heat builds and reliability matters most. This OEM part is tested under real marine conditions to ensure long life and consistent performance. That means fewer breakdowns, smoother running, and more time spent doing what you love — boating.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which Mercury engines or systems does the Replacement Thermostat fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIt fits \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury and Mariner \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e2-Stroke\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e 30-60 horsepower \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eoutboards\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, including \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBigFoot\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e and \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ejet drive\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e models.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What makes this part different from aftermarket alternatives?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Mercury’s OEM design ensures perfect temperature regulation, superior materials, and long-term reliability that aftermarket parts rarely match.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eHow do I know if\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e this \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eis\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e the correct replacement for my setup?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Check your service or owner’s manual for \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003epart number 850055001\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e. If your engine falls in the 30-60HP 2-stroke range, this is the correct fit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4:\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Can this be used in both saltwater and freshwater applications?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes. It’s constructed from corrosion-resistant materials designed to perform in both environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation straightforward for most boat owners?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Definitely\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e. It\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e installs easily with standard tools and comes designed for a direct, no-modification replacement.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46935897866531,"sku":"850055001","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/850055001_Main-1.jpg?v=1760631257","url":"https:\/\/partsvu.com\/en-au\/products\/mercury-850055001-outboard-thermostat-110","provider":"PartsVu","version":"1.0","type":"link"}