Wiseco Piston Kit with Gaskets - 40.50 mm - Yamaha PW50 - PK1159

Dedicated forgings and additional lightening operations allow for optimized strength to weight ratio. Designed and built for each specific 2-stroke engine. Engineered, forged and machined in the USA. Kit includes piston(s), ring set, wrist pin(s), circlips, bearing(s) and gaskets.