Cometic Top End Gasket Kit 97mm Yamaha YZ450F/WR450F/YZ450FX - Top end kit for Yamaha YZ450F/WR450F/YZ450FX

Top end kit for Yamaha YZ450F/WR450F/YZ450FX

• Type: Gasket Kit
• UPC: 191070548896

The Cometic Top End Gasket Kit is designed for Yamaha YZ450F, WR450F, and YZ450FX models with a 97mm bore (2020-2023). This high performance kit includes the correct base gasket, head gasket, cylinder O-rings, and all necessary top end specific O-rings or seals needed for a full top end rebuild. Multi-layered steel (MLS) head gaskets promote even torque load across the sealing surface, reducing bore distortion and improving piston ring seal for more power. Each gasket is made to handle today's high-output 4-stroke engines using a Viton rubber coating for superior sealing and durability. EST (Extreme Sealing Technology) kits feature embossed stainless steel gaskets with proprietary rubber material for maximum reliability. Made in the USA.

• Includes all required gaskets and O-rings for R&R of the top end
• 97mm bore size, 0.028" (0.71 mm) thickness
• Engineered for off-road 4-stroke applications
• Meets or exceeds OEM specifications
• Made in the USA