Two-stroke DT50 cylinder with a diameter of 40mm 43mm complete set of plugs and piston rings This cylinder is designed for two-stroke DT50 engines and features a bore diameter of 40mm or 43mm.It comes as a complete set including the cylinder, piston, and piston rings.The components are matched to proper fit and function within the engine assembly.This replacement part is intended for use in rebuilding or upgrading small displacement two-stroke engines.Installation requires standard mechanical tools and knowledge of two-stroke engine systems.