Chain Drive Gear and Sprocket Kit Replaces 41A5021 041C4220A 41A2827, 41a4315-7d,41C4220C, 41C4220, 41C4220A fits Craftsman Chamberlain liftmaster Sears Garage Opener Parts - virtionz, Liftmaster Gear and Sprocket Kit

• UPC   679541037549
• Liftmaster Gear and Sprocket Kit fits Chamberlain, Sears, Craftsman 1/3 and 1/2 HP Chain Drive Models Specs - Large Gear: 2 3/4" x 1/2" with 1/2" bore. Worm Gear: 1 1/8" Outside Diameter with 1 1/4" wide teeth. Includes - (1) Gear & Sprocket Kit with Worm Gear, Grease, Motor Shaft Bearings, Sprocket Bearings & Hardware. If your garage door opener is a 1/2 HP or 1/3 HP chain drive model with a production date of 1984 to present, this kit will be compatible Do NOT use for garage openers with dual sprockets on the output shaft Chain sagging is a indication that gear in your sprocket has started to damage and its time to it with sprocket and gear assembly Put grease on both the white gears while assembling Both the gears are made out of fresh nylon grade plastic Sprocket gear shaft is electroplated to prevent rust Gear Sprocket kit replaces 41a4315-7 For Craftsman 139.53615sr 139.53995SRT Garage Door Opener, Chamberlain 2265R 248730 41ac050-1, Manufacturer: virtionz