Moose Racing Complete Motor Gasket Kit Yamaha Yz80 Utilizing advanced materials to guarantee durability and a precise fit, revamp your engine and transmission. Each set includes genuine OEM replacement oil seals at a fraction of the cost, and comprehensive kits cover every aspect of top-end rebuilds. Plus, they're all made in the U.s.a. Features: Performance sets designed for a piston replacement Includes every gasket, O-ring and seal required to rebuild a top end valve seals, head, base, exhaust, tensioner, and other misc. gaskets and O-rings Convenient and cost-effective alternative to OEM Made in the USA Note: Does not include oil seals or formed rubber valve cover gaskets