Scooter YP250 Cylinder Block Kit For Majesty250 Majesty YP X-Max 250 Versity 300cc 4HC-11311-00 4-Stroke Engine This cylinder block kit is designed for use with YP250, Majesty250, Majesty YP, X-Max 250, and Versity 300cc equipped with a 4-stroke engine.The kit includes the cylinder block assembly with 4HC-11311-00, compatible with models requiring this specific configuration.It supports proper engine compression and performance by providing a complete cylinder unit suited for standard displacement setups.Installation requires standard mechanical tools and knowledge of engine assembly procedures. This is a compatible aftermarket component.Brand names are cited solely to show which devices it works with.