LiftMaster Chamberlain garage door opener part 41A4885-5 is the replacement gear & sprocket assembly that is compatible with BELT DRIVE LiftMaster Chamberlain 2001 through current models. Kit includes spring washer, thrust washer, retaining ring, bearing plate, 2 roll pins, drive gear, worm gear, helical gear with retaining clip and grease.
COMPATIBLE WITH THE FOLLOWING MODELS:
LiftMaster Chamberlain - 2280, 2580, 2585, 3280, 3580, 3585, WD822K, WD922K, WD912KS, WD822KS, WD912KS - all models may not be listed - Raynor Endeavor Model 2585RGD and Aviator 2280RGD - call our toll free number to check if your model is compatible - 866-901-1600
REPLACEMENT GEARS FOR LIFTMASTER CHAMBERLAIN GARAGE DOOR OPENER MODELS MANUFACTURED PRIOR TO 1984 ARE NO LONGER AVAILABLE
FOR MODELS MADE 1993-2001 PLEASE SEE PART NUMBER 41A4885-2 BELOW WHICH IS COMPATIBLE WITH MODEL NUMBERS 1270, 1280, 1280R, 8100, 8200, 9200.