Description
The Cometic Top End Gasket Kit (MPN: C3766) is designed for Yamaha YZ250F, WR250F, and YZ250FX models (2019-2023). This kit includes the correct base, head gasket, cylinder O-rings, and other top end-specific O-rings and seals needed for top end repair and replacement. Featuring multi-layer steel (MLS) and EST (Extreme Sealing Technology), these gaskets provide even torque load, reduce bore distortion, and improve piston ring seal for more power. The head gasket utilizes a Viton rubber coating for maximum sealing performance, ideal for high-output 4-stroke engines. Made in the USA.
- 80mm bore size, 0.023″ (0.58mm) thickness
- MLS and EST design for superior sealing
- Draws heat away from combustion ring to prevent hot spots
- Meets or exceeds OEM specifications
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