Cylinder Kit w/Piston & Top End Gasket Kit For EXC 300 XC 300 XC-W 300 2017-201872mm Cylinder Piston Gasket Top End Rebuild Kit For EXC XC XC W 300 2017 2018 Features: If your cylinder blows through, or a piston seizure has occurred, then this kit is exactly the right thing for you.? Kit includes cylinder, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured). Piston is anodized for superior heat resistance and longer lifespan. The gaskets use performance materials to increase durability and provide