810666MSE - 810666MSE - Moose Top End Gasket Kit - Yamaha YZ250 1997-2017

Features: Moose can now handle all your gasket and seal needs at a fraction of OEM cost. High-tech materials provide unmatched reliability and performance. Rebuild the engine and transmission with total confidence as each set is designed for durability and accurate fit. Oil seals are genuine OEM replacement seals. 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. High-compression kit uses .012" thick base gaskets to raise compression. Cost-effective way to raise compression without expensive high-compression pistons or cylinder head work. All gaskets made in the USA. Formed rubber valve cover gasket not included..