Chamberlain Garage Door Opener Replacement Gear And Sprocket

041c4220a is a complete chain drive gear and sprocket replacement kit.

Chamberlain garage door opener replacement gear and sprocket.

Helical gear and top hat assembly worm gear wear bushings grease and hardware needed to replace the chain drive gears. Helical gear and top hat assembly worm gear wear bushings grease and hardware needed to replace the chain drive gears. In most chamberlain liftmaster and sears openers a motor turns the worm gear and drive shaft inside the opener which rotates the sprocket attached to the top of the drive shaft. Includes all fasteners as pictured and installation instructions.

This turns the chain and moves the door. Compatible with chamberlain models pd752 pd758s pd752d pd758d all models may not be listed. This gear and sprocket assembly is compatible with various chain drive garage door openers. Check the manual or replacement parts diagram for specific part information before.

This was a craftsman model 139 53976srt. This is a video on how to change the gear sprockets in a craftsman garage door opener. See more product details.