{"product_id":"cometic-top-end-gasket-kit-97mm-bore-for-yamaha-wr450f-yz450f","title":"Cometic Top End Gasket Kit 97mm Bore for Yamaha WR450F YZ450F","description":"\u003cp\u003eThe \u003cstrong\u003eCometic 97mm bore top end gasket kit\u003c\/strong\u003e is engineered to restore and enhance the performance of your Yamaha WR450F or YZ450F (2018-2020). This comprehensive kit provides all essential components for a complete top end rebuild, ensuring optimal sealing and durability for demanding 4-stroke applications.\u003c\/p\u003e\n\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eCometic 97mm bore top end gasket kit\u003c\/strong\u003e is specifically designed for high-performance 4-stroke engines like the Yamaha WR 450 F and YZ 450 F from 2018-2020. This kit features Cometic's renowned Multi-Layer Steel (MLS) head gaskets, which are critical for maintaining an even torque load across the sealing surface. This innovative design significantly reduces bore distortion, leading to a better piston ring seal and ultimately, more power output from your engine.\u003c\/p\u003e\n\u003cp\u003eCrafted to excel in today's highest-output naturally aspirated and boosted machines, these MLS head gaskets incorporate embossed outer layers coated with a durable Viton rubber. This construction ensures exceptional resilience against the high cylinder pressures and temperatures common in modern high-horsepower engines. The kit also includes correct base gaskets, cylinder O-rings, and other top end specific seals, all made with Extreme Sealing Technology (EST) using proprietary rubber-coated embossed stainless steel for reliable, leak-free performance. By efficiently drawing heat away from the combustion ring, these gaskets prevent hot spots and premature failure, providing peace of mind and consistent power.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures \u0026amp; Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Power \u0026amp; Sealing:\u003c\/strong\u003e Features Multi-Layer Steel (MLS) head gaskets that promote even torque distribution, minimizing bore distortion for a superior piston ring seal and increased power output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Performance 4-Stroke Design:\u003c\/strong\u003e Engineered specifically for high-output 4-stroke engines, with materials built to withstand extreme cylinder pressures and temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Sealing Technology:\u003c\/strong\u003e Utilizes embossed stainless steel gaskets with a Viton rubber coating on head gaskets and a proprietary rubber material on EST base and rocker gaskets, ensuring maximum durability and a leak-free seal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Heat Management:\u003c\/strong\u003e Specially designed head gasket material effectively dissipates heat from the combustion ring, eliminating hot spots and significantly extending gasket life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Top End Kit:\u003c\/strong\u003e Includes all necessary base and head gaskets, cylinder O-rings, and other specific seals required for a thorough top end overhaul.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProudly Made in the USA:\u003c\/strong\u003e Manufactured with precision and quality craftsmanship in the United States, ensuring reliability and performance you can trust.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eType: Top End\u003c\/li\u003e\n\u003cli\u003eModel: Hi-Performance\u003c\/li\u003e\n\u003cli\u003eUnits: Kit\u003c\/li\u003e\n\u003cli\u003eMaterial: MLS (Multi-layer Steel)\u003c\/li\u003e\n\u003cli\u003eBore Size: 97.00mm (3.818\")\u003c\/li\u003e\n\u003cli\u003eThickness: 0.69mm (0.027\")\u003c\/li\u003e\n\u003cli\u003eEngine Type: 4-Stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEAN:\u003c\/strong\u003e 0191070396534\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cometic","offers":[{"title":"Default Title","offer_id":63699980255562,"sku":"09347845","price":349.0,"currency_code":"DKK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0016\/9546\/files\/63f79bd223fd727fb875ccb07716600b.webp?v=1790464419","url":"https:\/\/partsdenmark.dk\/products\/cometic-top-end-gasket-kit-97mm-bore-for-yamaha-wr450f-yz450f","provider":"Parts Denmark","version":"1.0","type":"link"}