Cast iron cylinder, piston with new rings installed, pin and clips. Intake if you want it. Low mileage used (except the rings are new)about 550 miles. Ready to run, no issues. M0 piston port top ends are getting hard to find and the kits are ridiculous in price and the reed conversion kits don't fit on a lot of frames. $60 plus $15 shipping (sorry but the cast iron cylinder is very heavy making shipping at least that much)