Moose Racing Complete Motor Gasket Kit Yamaha Yz250 Get complete engine and transmission rebuild sets with confidence. Each set is designed for durability and accurate fit based on your bike model. Kits include all necessary gaskets and oil seals. Get them at a fraction of the OEM cost. Features: Oil seals are genuine OEM replacement seals Valve seals included in 4 stroke kits Includes formed rubber valve cover gaskets (unless noted) Does not include mechanical water pump seal (unless noted) All gaskets made in the USA Note: Images are for reference only.