{"product_id":"thermostat-120-degree-mercury-mariner-sears-outboard-6-125-hp-18-3549-14586","title":"Thermostat 120° Degree Mercury Mariner Sears Outboard (6 - 125 HP) 18-3549 14586","description":"\u003ch2\u003eThermostat 120° for Mercury Mariner Sears Outboard\u003c\/h2\u003e\u003cp\u003eThis 120° thermostat for Mercury, Mariner, and Sears outboards replaces OEM cross-reference numbers 18-3549 and 14586, regulating engine temperature for 6 to 125 HP applications.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Thermostat 120° is designed for Mercury, Mariner, and Sears outboard engines within the 6 to 125 HP range. Replacing OEM part numbers 18-3549 and 14586, this Thermostat 120° opens at the specified temperature to maintain consistent cooling. It suits marine mechanics and DIY boat owners needing a direct thermostat replacement.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e120° opening temperature for reliable engine warm-up\u003c\/li\u003e\n\u003cli\u003eReplaces OEM part numbers 18-3549 and 14586\u003c\/li\u003e\n\u003cli\u003eFits outboard motors from 6 to 125 HP\u003c\/li\u003e\n\u003cli\u003eCompatible with Mercury, Mariner, and Sears outboards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Mercury outboard engines 6 to 125 HP\u003c\/li\u003e\n\u003cli\u003efor Mariner outboard engines 6 to 125 HP\u003c\/li\u003e\n\u003cli\u003efor Sears outboard engines 6 to 125 HP\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReplacing a stuck-open or stuck-closed outboard thermostat\u003c\/li\u003e\n\u003cli\u003eMaintaining proper engine operating temperature in salt or freshwater\u003c\/li\u003e\n\u003cli\u003eRestoring consistent cooling in Mercury, Mariner, and Sears outboards\u003c\/li\u003e\n\u003cli\u003eServing as a tune-up component during cooling system service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMercury, Mariner, Sears outboards 6-125 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThermostat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18-3549, 14586\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What temperature does this thermostat open at? \u003cstrong\u003eA:\u003c\/strong\u003e This thermostat opens at 120° to help the outboard reach normal operating temperature.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this fit all Mercury outboards? \u003cstrong\u003eA:\u003c\/strong\u003e This thermostat is intended for Mercury, Mariner, and Sears outboard models within the 6 to 125 HP range, so verify your specific serial number before ordering.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":45556603158614,"sku":"ZZ3E01086","price":34.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_32daa8f2-af4b-4726-b1fb-4cdb20803757.jpg?v=1789215767","url":"https:\/\/www.solidspare.com\/products\/thermostat-120-degree-mercury-mariner-sears-outboard-6-125-hp-18-3549-14586","provider":"Solid Spare","version":"1.0","type":"link"}