Cylinder Piston Top End Kit For HiSun Sector 550 Tactic 550 Strike 550 2017-2023Cylinder Piston Gasket Top End Rebuild Kit For HiSun UTV 550 HS Sector Strike Tactic Features: If your cylinder blows through, the compression is too low, or even 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