{"product_id":"aipico-marine-thermostat-kit-for-mercury-mariner-4-stroke-8-90hp-140-f-60-c-thermostat-with-gasket-27-824853","title":"AIPICO Marine Thermostat Kit for Mercury\/Mariner 4-Stroke 8–90HP — 140°F (60°C) Thermostat with Gasket 27-824853","description":"\u003cp\u003e\u003cstrong\u003eThe AIPICO Marine Thermostat Kit (825212T02 \/ 855676A1) is a complete aftermarket replacement for Mercury Mariner 4-stroke outboards that stabilizes engine temperature at 140°F (60°C) and includes gasket 27-824853.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your Mercury 4-stroke outboard has been running hot, producing irregular warm-up times, or shows signs of coolant flow issues, this tested AIPICO kit offers a direct-fit thermostat solution. Designed for manual mounting on most Mercury\/Mariner 4-stroke engines from 8HP up to 90HP, the kit arrives pre-tested and ready to install. It restores consistent operating temperature control so the engine runs closer to its intended performance range without expensive OEM downtime.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this thermostat kit maintain proper engine temperature?\u003c\/h3\u003e\n\u003cp\u003eThe thermostat opens and closes at a calibrated 140°F (60°C) to regulate coolant flow through the engine’s cooling passages. By closing during cold starts it promotes faster warm-up; by opening as temperature rises it permits coolant circulation to prevent overheating. The included gasket ensures a tight seal at the mounting surface to avoid leaks that reduce cooling efficiency.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCalibrated to open at 140°F \/ 60°C for consistent regulation\u003c\/li\u003e\n  \u003cli\u003eManual-mount design fits common Mercury\/Mariner housings\u003c\/li\u003e\n  \u003cli\u003eIncluded 27-824853 gasket prevents coolant leaks at installation\u003c\/li\u003e\n  \u003cli\u003eFactory testing before shipment verifies proper operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this part fit my Mercury or Mariner outboard motor?\u003c\/h3\u003e\n\u003cp\u003eThis AIPICO kit is engineered as a direct replacement for many Mercury Mariner 4-stroke models in the 8HP–90HP range that use part numbers 825212T02, 855676A1, 825212, 855676003, or 825212001. Compatibility depends on your specific engine year and housing design, so check part numbers or compare the old thermostat unit for a match. When in doubt, compare dimensions and mounting points prior to purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces OEM numbers: 825212T02, 855676A1, 825212, 855676003, 825212001\u003c\/li\u003e\n  \u003cli\u003eRecommended for Mercury\/Mariner 4-stroke 8–90 HP models\u003c\/li\u003e\n  \u003cli\u003eCompare your existing thermostat and gasket to confirm fit\u003c\/li\u003e\n  \u003cli\u003eTechnical compatibility check advised for non-standard engine years\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat does the kit include and how reliable is it?\u003c\/h3\u003e\n\u003cp\u003eThe package contains the thermostat assembly and gasket 27-824853 (also referenced as 27-8248531 in some lists). Each kit is inspected and tested before shipment to ensure the thermostat responds at the correct temperature and the gasket seals properly. Using a tested aftermarket kit can provide reliable performance when OEM parts are unavailable or more costly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThermostat assembly matched to 140°F \/ 60°C activation\u003c\/li\u003e\n  \u003cli\u003eGasket 27-824853 included for proper sealing\u003c\/li\u003e\n  \u003cli\u003ePre-shipment testing to confirm operation and sealing\u003c\/li\u003e\n  \u003cli\u003eAftermarket alternative for budget-conscious repairs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what should I prepare?\u003c\/h3\u003e\n\u003cp\u003eInstallation is a straightforward mechanical replacement typically done at the water pump or thermostat housing location. Basic hand tools, a clean mounting surface, and proper torque on fasteners are all that’s required. Replace the gasket and clean mating surfaces to ensure a leak-free seal, and follow manufacturer torque specs when tightening bolts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBasic tools: wrench set, gasket scraper, torque wrench recommended\u003c\/li\u003e\n  \u003cli\u003eClean mating surfaces thoroughly before installing new gasket\u003c\/li\u003e\n  \u003cli\u003eFollow engine manual torque and reassembly sequence\u003c\/li\u003e\n  \u003cli\u003eInspect cooling passages and impeller while access is open\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The AIPICO Marine Thermostat Kit is intended for boat owners, marine mechanics, and DIYers who operate Mercury\/Mariner 4-stroke outboards (8–90HP) and need a reliable, tested replacement thermostat with gasket. It’s a practical solution for routine maintenance, mid-season repairs, or when restoring proper cooling function without sourcing OEM parts. If you value a direct-fit, pre-tested aftermarket part that helps maintain consistent engine temperature, this kit is a suitable and cost-effective option.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this thermostat fit all Mercury 4-stroke engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It fits many Mercury\/Mariner 4-stroke models from 8HP to 90HP using the listed part numbers; verify by comparing your old thermostat and part number.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the gasket included with the thermostat?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — gasket 27-824853 is included in the kit for a sealed installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"AIPICO","offers":[{"title":"Default Title","offer_id":48084460044446,"sku":"B092QNP5QF","price":32.75,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/aipico-thermostat-kit-front-view.jpg?v=1785856098","url":"https:\/\/northtrailauto.ca\/products\/aipico-marine-thermostat-kit-for-mercury-mariner-4-stroke-8-90hp-140-f-60-c-thermostat-with-gasket-27-824853","provider":"North Trail Auto","version":"1.0","type":"link"}