Wiseco Piston Kit with Gaskets - 54.00 mm - Yamaha YZ125/X - PK1390

Electra-Coated crown, ring groove(s), and pin bores plus ArmorGlide® skirt coating for maximum wear resistance and protection from micro-welding, galling, and detonation. Designed for endurance and sustained RPM 2-stroke riding. Extra lightening operations for enhanced throttle response. Engineered, forged and machined in the USA. Kit includes piston(s), ring set, wrist pin(s), circlips, bearing(s) and gaskets.