Gaskets and Seals

Includes all required gaskets and O-rings for both rocker boxes

Contain the best quality gaskets availableMade in the U.S.A.

Kits include aluminum cylinder with nickel-carbide coating designed with larger water jacketsForged piston with molybdenum coatingSpecial gasket kitEasy-to-follow step-by-step installation instructionsAll are bolt-on; no machining required Yamaha -- YZ...

Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas with a higher compression. Kits do not...

Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas with a higher compression. Kits do not...

Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas with a higher compression. Kits do not...

Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas with a higher compression. Kits do not...

James Gasket Primary Cover Gasket Kit Jgi-60547-06-K

James Gasket Primary Gasket Kit Jgi-60538-85-K

James Gasket Primary Gasket Kit Jgi-34901-94-K

James Gasket Primary Cover Gasket Kit Jgi-34901-07-K

James Gasket Primary Cover Gasket Kit Jgi-34901-05-K