56MM CYLINDER PISTON GASKET KIT FOR YX 140cc 150cc PITBIKES PIT BIKE YX140 ZS140 This cylinder piston gasket kit is designed for rebuilding the end of YX 140cc and ZS140 pit bike engines.The cylinder is constructed from aluminum with a cast iron jacket, providing and efficient heat dissipation.The anodized piston features a 13mm piston pin and is paired with a piston ring set to support consistent compression and engine performance.The kit includes all necessary gaskets such as the cylinder head gasket, base gasket, and valve stem seals for a complete end rebuild. The cylinder bore size is 56mm, matching the specifications of compatible 1P56FMJ engine models.All components are included: cylinder, piston, piston rings, wrist pin, retaining clips, and full gasket set.This kit supports improved engine compression and performance when used in appropriate applications.It is intended for use with 140cc and 150cc pit bike engines and is not suitable for 125cc engine models. Compatibility Notice: This is an aftermarket product.Mention of brands is for fitment identification only.