Description
Gear Sprocket Kit For Liftmaster 41A4252 41A5021 41A5483 Chamberlain Craftsman About This Item: Includes installation tutorial Kit Includes: Gear and sprocket, worm gear, grease, motor shaft bearings, sprocket bearings Compatible with chain drive chamberlain sears craftsman operators 1984-current Compatible with chamberlain, sears, craftsman and lift master 1/3 and 1/2 HP chain drive models, replacement parts