{"product_id":"6s5-12121-00-00-exhaust-valve-for-yamaha-crosswave-1900-2026","title":"6S5-12121-00-00 Exhaust Valve for Yamaha CrossWave 1900 2026","description":"\u003ch2\u003eExhaust Valve for Yamaha\u003c\/h2\u003e\u003cp\u003eThis exhaust valve, OEM cross-reference 6S5-12121-00-00, controls exhaust gas flow in the engine cylinder head of Yamaha personal watercraft.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis exhaust valve for Yamaha is a direct-fit replacement for the 6S5-12121-00-00 part number used across several four-stroke marine engines. The exhaust valve seals combustion gases during compression and opens at the right moment to release them, keeping your engine running cleanly and efficiently. It suits riders and mechanics servicing the Yamaha CrossWave 1900 for the 2026 model year.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-ground valve face for a consistent combustion seal\u003c\/li\u003e\n\u003cli\u003eHeat-resistant alloy construction built to handle continuous exhaust temperatures\u003c\/li\u003e\n\u003cli\u003eStem dimensions matched to the 6S5-12121-00-00 specification\u003c\/li\u003e\n\u003cli\u003eDesigned for four-stroke marine engine cylinder heads\u003c\/li\u003e\n\u003cli\u003eDirect replacement for the original valve without modification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Yamaha CrossWave 1900, 2026\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop-end rebuilds on Yamaha CrossWave 1900 watercraft\u003c\/li\u003e\n\u003cli\u003eValve replacement during routine engine service\u003c\/li\u003e\n\u003cli\u003eCylinder head refurbishment after compression loss\u003c\/li\u003e\n\u003cli\u003eMaintenance for high-hour personal watercraft engines\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 Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExhaust Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha CrossWave 1900, 2026\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 How many exhaust valves does this fit? \u003cstrong\u003eA:\u003c\/strong\u003e This listing covers one exhaust valve, so order the quantity your cylinder head requires. Confirm the count against your engine before purchase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this valve require lapping during installation? \u003cstrong\u003eA:\u003c\/strong\u003e A light lap to the valve seat is standard practice for a proper seal. Have a qualified technician check clearance and seating after installation.\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":51065555222614,"sku":"OO1C08131","price":50.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_792fd298-6a36-44d5-855c-2c1ad65f4220.jpg?v=1794394581","url":"https:\/\/www.solidspare.com\/products\/6s5-12121-00-00-exhaust-valve-for-yamaha-crosswave-1900-2026","provider":"Solid Spare","version":"1.0","type":"link"}