Description
The Cometic Top End Gasket Kit provides all the necessary gaskets and O-rings for servicing the top end of your Yamaha YZ125 or YZ125X (2022-2023). This kit includes correct base, head gasket, and cylinder O-rings plus other required seals for a thorough top end rebuild. Multi-Layer Steel (MLS) head gaskets promote even torque load, reducing bore distortion and improving piston ring seal for more power. Manufactured using advanced Extreme Sealing Technology (EST), Cometic’s gaskets are designed for maximum heat dissipation, flexibility, and durability. Made in the USA for high performance and reliability.
- Includes all top end gaskets and O-rings
- MLS head gaskets for less bore distortion and better sealing
- Designed for high-output 2-stroke engines
- Meets or exceeds OEM specifications
- Made in the USA







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