Motorcycle 62mm Air Cylinder Block & Piston & Rings & Kit & Gaskets For EX250 ER250 Z250 11061-0790 11004-0734 This kit includes a 62mm cylinder block, piston, piston rings, and gaskets designed for use with EX250, ER250, and Z250 motorcycle engines.The components are engineered to fit models requiring part numbers 11061-0790 and 11004-0734.The cylinder block is machined to standard specifications to proper installation and function.The piston is compatible with the 62mm bore size and works in conjunction with the included rings to maintain compression.Gaskets are provided to seal the assembly during engine reassembly.This set is intended for engine rebuilds or replacements where these specific dimensions and part numbers are required. Compatibility Statement: This is not an manufacturer part.Brand/model references are used for fitment guidance.