LIFTMASTER BELT DRIVE REPLACEMENT TROLLEY 41B3869-1
Works with LiftMaster, Chamberlain belt drive garage door opener models 1270, 1280, 1280R, 2280, 2580, 2500, 2500B, 2500D, 2585, 8100, 8100M, 8200, 9200, WD822K, WD922K, WD912K, WD912KS, WD822KS all models may not be listed.
