Qty 500: Garage Door Opener Drive Gear Fits Chamberlain Replaces

'-Chamberlain, Fits Craftsman, Liftmaster, Sears, Raynor and more. Fits Chamberlain -(1) Drive Gear. -Drive Gear OD: 2-3/4". -Drive Gear Bore Size: 1/2". -Drive Gear Number of Teeth: 32. Models : 1040, 1045, 1046, 1050, 1055, 1056, 1060, 100WD, 200WD, 300WD, 110WD, 210WD, 310WD, 1260LK, 1245LK, 215WD, 220ED, 315WD, 320WD, 1240R, 1245R, 1246R, 1255R, 1256R, 985, 2565, 2575, 2595, 140, 150, 240, 350, 450, 550, 700WHC, 701WHC, 1000, 2000, 4000, 4001, 5000, 710WHC, 711WHC, 1100, 2100, 4100, 5100, 72