Cylinder Kit with Piston and End Gasket Set for EC 300 EX 300 2021 2022 2023 This kit is designed for use when a cylinder has blown through or a piston seizure has occurred.It includes a cylinder, piston, piston rings, wristpin, circlips, and a complete end gasket set.The piston is anodized to improve heat resistance and.Gaskets are made from performance materials to enhance sealing and.Kit includes all components shown: - 1x Cylinder - 1x Piston - 1x Piston Ring Set - 1x 18mm Wristpin - 2x Circlips - 1x Cylinder Base Gasket - 1x Intake Manifold Gasket - 1x Left Control Cover Gasket - 1x Right Control Cover Gasket - 2x Exhaust Gasket Bore size is standard 72.0 mm.Piston pin diameter is 18mm with an overall length of 56mm.Designed for 300cc two-stroke fuel-injected engines.Replaces part numbers: Cylinder and Piston: 55630038100, 55730138000 Piston Kit: 55630307100 Cylinder Base Gasket: 55430030040 Left Control Cover Gasket: 55537006000 Right Control Cover Gasket: 55537008000 Pin, Piston: 55430033000 Piston Ring Set (Std): 54830132000 Circlips, piston (2): 54830074000 Intake Manifold Gasket: 54830062200 Exhaust Gasket: 0770440030 Fits the following models: - EC 300 2021–2023 - EX 300 2021–2023 - TE 300 2019–2023 - TX 300 2019–2022 - 300 XC 2019–2022 - 300 EXC 2019–2022 - 300 XC-W 2019–2022 OEM part numbers are provided for reference and compatibility verification only.This is not an manufacturer part.Fitment should be confirmed by comparing with your existing components and the product images.This is a compatible aftermarket part.References to brands or models do not imply OEM association.