DescriptionLiftmaster Service Kit Chamberlain Liftmaster service kit to suit chain drive models 4410/4210/4400/3750 and most motor lift models. It will also suit Garador auto door which was under the brand name of Chamberlain Liftmaster. KIT INCLUDES: gear, shaft, sprocket, worm wheel and rail grease. For reference: the diameter of the drive gear shown bleach white. is 2-3/4 inches. Chamberlain part number: 041A3261-1 Downloads Reviews
