My 2008 summit X 800 had the motor replaced under waranty and less than 200 miles later one piston had the ring position pin come out and do a little damage. As a result, the dealer warrantied me a new cylinder and with ski doo having the pistons back ordered and it still being riding season, I decided to go with an after market set of pistons. As a result, I have a piston with less than 200 miles that is in great shape!. $75 or best offer and includes piston, ring, pin, and clips. 507-382-9466 Tony