Drive Belt for Liftmaster and Chamberlain Brand garage door openers .
Lift-Master Chamberlain screw drive garage door opener models 1000SD, 1000SDR, 2000SD, 2000SDR, 4600, 4620, 4640, 9902 all models may not be listed.
Drive Belt for Liftmaster and Chamberlain Brand garage door openers . Lift-Master Chamberlain screw drive garage door opener models 1000SD, 1000SDR, 2000SD, 2000SDR, 4600, 4620, 4640, 9902 all models may not be listed.