Gear and Sprocket Replacement Kit for Liftmaster 41c4220a 41a2817, fits Chamberlain, Sears, Craftsman 1/3 and 1/2 HP Chain Drive Models (Chain Drive Gear and Sprocket Kit)

Gear and Sprocket Replacement Kit Includes: Gear and sprocket, worm gear, grease, motor shaft bearings, sprocket bearings, Compatible with Chamberlain, Sears, Craftsman and LiftMaster 1/3 and 1/2 HP chain drive models, Compatible with chain drive Chamberlain Sears Craftsman manufactured operators 1984-current, Installation: Step-by-step instructions included, free tech support available. This OEM kit 041c4220a includes all of the 41A2817 Drive / Worm Gear kit, and is easier to install because you do not have to disassemble the output shaft assembly - the spur gear is already mounted on the new output shaft, Our After-Sales Service: lf you are not positive that this is the correct item for you, please contact us through our store front page "Ask a question". If you are unhappy with it for any reason, reach us and we will sort things out for you