{"product_id":"thermostat-kit-for-yamaha-outboard-f25-f100-hp-replaces-6h3-12411-11-00-50c-with-cover-gasket-mpn-18-3622","title":"Sierra 18-3622 Thermostat Kit for Yamaha Outboards, Replaces 6H3-12411-11-00, 122F","description":"\u003cp\u003eThe Sierra 18-3622 Thermostat Kit is a replacement thermostat and gasket set designed for Yamaha outboard engines. The kit includes a thermostat with a 122 degrees F (50 degrees C) opening temperature along with a matching thermostat cover gasket (Sierra 18-0835), giving you everything needed to restore proper cooling system operation in one package. Maintaining correct thermostat function is critical on an outboard: it regulates engine warm-up and keeps operating temperature within the range the engine was designed for, protecting against overheating and reducing wear caused by running too cold or too hot.\u003c\/p\u003e\u003cp\u003eThis kit is built to meet or exceed the specifications of the original equipment thermostat it replaces, making it a straightforward swap for the OEM part. The included gasket ensures a proper seal at the thermostat cover, so there is no need to source a separate gasket for the job. It is finished in white and sized to fit directly into the Yamaha thermostat housing it is designed for.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3622\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Thermostat Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Rating:\u003c\/strong\u003e 122 degrees F \/ 50 degrees C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Thermostat, 1 thermostat cover gasket (Sierra 18-0835)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.07 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e Yamaha 6H3-12411-11-00\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eYamaha outboard engines using thermostat 6H3-12411-11-00\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e6H3-12411-11-00\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-3622 Thermostat Kit fit?\u003c\/strong\u003e The 18-3622 kit is designed for Yamaha outboard engines that use OEM thermostat 6H3-12411-11-00.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the opening temperature of this thermostat?\u003c\/strong\u003e The thermostat in the Sierra 18-3622 kit opens at 122 degrees F (50 degrees C).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-3622 kit include a gasket?\u003c\/strong\u003e Yes, one thermostat cover gasket, Sierra part 18-0835, is included with the 18-3622 kit so you do not need to buy a gasket separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the Sierra 18-3622 replace?\u003c\/strong\u003e It replaces Yamaha OEM thermostat number 6H3-12411-11-00.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3622 a genuine Yamaha part or aftermarket?\u003c\/strong\u003e The 18-3622 is a Sierra-branded aftermarket thermostat kit built to meet or exceed the performance of the original Yamaha 6H3-12411-11-00 thermostat.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the thermostat kit weigh?\u003c\/strong\u003e The Sierra 18-3622 Thermostat Kit weighs 0.07 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the thermostat housing or components?\u003c\/strong\u003e The components in the 18-3622 kit are white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need any other parts to complete a thermostat replacement with this kit?\u003c\/strong\u003e The 18-3622 kit includes both the thermostat and its cover gasket (18-0835), covering the parts most commonly needed for a thermostat swap on the applicable Yamaha outboard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the 18-3622 thermostat if my engine runs warmer or cooler than 122 degrees F?\u003c\/strong\u003e The Sierra 18-3622 is built to a fixed 122 degrees F (50 degrees C) opening rating; a different temperature rating would require a different Sierra thermostat kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs thermostat 18-3622 different from Sierra 18-3621 or 18-3623?\u003c\/strong\u003e Yes, 18-3622 is a distinct Sierra part number from 18-3621 and 18-3623; each corresponds to a different OEM Yamaha thermostat, so confirm your engine's OEM number before ordering.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988155576539,"sku":"SIE-18-3622","price":31.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3622__11783.1558188898.500.750.jpg?v=1785188679","url":"https:\/\/www.goodvibesmarina.com\/products\/thermostat-kit-for-yamaha-outboard-f25-f100-hp-replaces-6h3-12411-11-00-50c-with-cover-gasket-mpn-18-3622","provider":"Good Vibes Marina","version":"1.0","type":"link"}