- (2pack)drive gear replace 41A2817 41C4220A 81B0045, Compatible With All Chamberlain Sears Liftmaster Craftsman and Raynor Residential Garage Door Openers
- Drive Gear Bore Size: 1/2″ , Drive Gear Outside Diameter: 2 3/4″ , Drive Gear Number of Teeth: 32
- Fits over 170 Craftsman garage door openers