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Technical
Liftmaster Gear and Sprocket Assembly is an original equipment replacement part for Chamberlain, Liftmaster, Sears Craftsman, Master Mechanic and Garage Master chain drive garage door openers manufactured from 1984 to the present. Includes drive shaft, worm gear, drive gear, replacement bushings, pins and lubricant. Installation instructions. - Works with the following chain drive garage door openers manufactuered from 1984 to present day: Liftmaster, Sears, Craftsman, Chamberlain, Garage Master, Wayne Dalton and Master Mechanic. Compatible with LiftMaster Chamberlain garage door opener models 1040, 1045,1050, 1055, 1060, 100WD, 200WD, 300 WD, 1140, 1145, 1150, 1155, 1160, 110WD, 210WD, 310WD, 1240, 1245, , 1250, 1255, 1260, 1260LK, 1245LK, 215WD, 220ED, 315WD, 320WD, 1240R, 1245R, 1255R, 1265, 985, 2265, 2565, 2245, 2255, 140, 150, 240, 350, 450, 550, 700WHC, 1000, 2000, 4000, 5000, 710WHC, 1100, 2100, 4100, 5100, 7200, 1200, 2200, 4200, 6200, 7220, CG40, PD210, PD610, PD612K, 7420, Replaces old part number 41A2827
If you do not need to replace the worm gear and you are looking for a low cost alternative see part number 41C4220ACR
Chain drive models only
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