{"product_id":"6s5-12121-00-00-exhaust-valve-for-yamaha-252-fsh-sport-1800-2021-2023","title":"6S5-12121-00-00 Exhaust Valve for Yamaha 252 FSH Sport 1800 2021-2023","description":"\u003ch2\u003eExhaust Valve for Yamaha\u003c\/h2\u003e\u003cp\u003eThis exhaust valve, reference 6S5-12121-00-00, controls exhaust gas flow in the cylinder head of Yamaha 1800 marine engines.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis exhaust valve for Yamaha fits 252 FSH Sport 1800 models from 2021 to 2023 and replaces a worn or burnt valve in the engine's exhaust path. Made to original dimensions, this exhaust valve for Yamaha seals against the seat to maintain compression and steady running. It suits boat owners and marine techs doing top-end service.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-ground valve face for reliable seating\u003c\/li\u003e\n\u003cli\u003eHeat-resistant alloy built for marine exhaust temperatures\u003c\/li\u003e\n\u003cli\u003eStem sizing matched to 6S5-12121-00-00 specifications\u003c\/li\u003e\n\u003cli\u003eSupports consistent compression and combustion\u003c\/li\u003e\n\u003cli\u003eDirect-fit replacement for the listed Yamaha engine family\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Yamaha 252 FSH Sport 1800, 2021-2023\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop-end rebuilds and valve replacement service\u003c\/li\u003e\n\u003cli\u003eRestoring compression on high-hour marine engines\u003c\/li\u003e\n\u003cli\u003ePre-season maintenance checks\u003c\/li\u003e\n\u003cli\u003eShop repair work on Yamaha jet boat powerplants\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6S5-12121-00-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComponent\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExhaust Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Family\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003efor Yamaha 252 FSH Sport, 2021-2023\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 Is this an original Yamaha part? \u003cstrong\u003eA:\u003c\/strong\u003e No, this is an aftermarket exhaust valve made to fit Yamaha engines and cross-references the 6S5-12121-00-00 number. Confirm your engine code before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Should exhaust valves be replaced as a set? \u003cstrong\u003eA:\u003c\/strong\u003e Exhaust valves are often serviced as a set during a top-end rebuild. Inspect valve guides and seats at the same time for the best result.\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":51065646547030,"sku":"OO1C08313","price":50.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_08ffc946-6b45-4078-89ae-9a767a6e99ed.jpg?v=1794394697","url":"https:\/\/www.solidspare.com\/products\/6s5-12121-00-00-exhaust-valve-for-yamaha-252-fsh-sport-1800-2021-2023","provider":"Solid Spare","version":"1.0","type":"link"}