{"product_id":"cometic-c3786-top-end-gasket-kit-97mm-for-yamaha-450f-models","title":"Cometic C3786 Top End Gasket Kit, 97mm, for Yamaha 450F Models","description":"\u003cp\u003eThe Cometic C3786 Top End Gasket Kit is designed for Yamaha 450F engines requiring a 97mm top-end gasket solution. This kit helps restore sealing performance during cylinder, piston, or top-end service while supporting reliable engine operation and consistent compression. It is engineered for select Yamaha motocross and off-road applications and is suitable for professional repairs, engine rebuilds, and performance maintenance.\u003c\/p\u003e\u003cp\u003eCometic uses application-focused gasket materials to provide dependable sealing across critical engine surfaces. The graphite gaskets feature a steel core laminated on both sides with flexible graphite, helping accommodate surface irregularities while maintaining sealing integrity. Fiber gaskets are designed for maximum seal, flexibility, and torque retention, while the included O-ring gaskets meet or exceed OEM specifications.\u003c\/p\u003e\u003cp\u003eFitment includes 2020–2022 Yamaha YZ450F, 2021–2023 Yamaha YZ450FX, and 2021–2022 Yamaha WR450F models. Confirm the exact year and model of your motorcycle before installation to ensure proper application. This Cometic kit is identified by manufacturer part number C3786 and vendor part number 68-37860E.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e97mm top-end gasket kit for select Yamaha 450F engines\u003c\/li\u003e\n\u003cli\u003eRaises compression for improved low-end power\u003c\/li\u003e\n\u003cli\u003eGraphite gaskets feature a steel core laminated on both sides with flexible graphite\u003c\/li\u003e\n\u003cli\u003eFiber gaskets are designed for maximum sealing, flexibility, and torque retention\u003c\/li\u003e\n\u003cli\u003eO-ring gaskets meet or exceed OEM specifications\u003c\/li\u003e\n\u003cli\u003eFits 2020–2022 Yamaha YZ450F\u003c\/li\u003e\n\u003cli\u003eFits 2021–2023 Yamaha YZ450FX\u003c\/li\u003e\n\u003cli\u003eFits 2021–2022 Yamaha WR450F\u003c\/li\u003e\n\u003cli\u003eBrand: Cometic\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: C3786\u003c\/li\u003e\n\u003cli\u003eVendor part number: 68-37860E\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2020 Yamaha YZ450F\u003cbr\u003e\n2021 Yamaha WR450F\u003cbr\u003e\n2021 Yamaha YZ450F\u003cbr\u003e\n2021 Yamaha YZ450FX\u003cbr\u003e\n2022 Yamaha WR450F\u003cbr\u003e\n2022 Yamaha YZ450F\u003cbr\u003e\n2022 Yamaha YZ450FX\u003cbr\u003e\n2023 Yamaha WR450F\u003cbr\u003e\n2023 Yamaha YZ450FX","brand":"COMETIC","offers":[{"title":"Default Title","offer_id":67551496306923,"sku":"68-37860E","price":78.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/6bb4-6213e850bd7d1.png?v=1790718298","url":"https:\/\/ctracingservices.com\/products\/cometic-c3786-top-end-gasket-kit-97mm-for-yamaha-450f-models","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}