OEM. Liftmaster / sears 41C4220A GEAR and SPROCKET assembly for a chamberlin,liftmaster or sears craftsman. chain drive model It is refurbished, has a new Gear and is in excellent condition . Gear and Sprocket assembly Compatible with ALL units from Liftmaster, Chamberlain, Sears Crafstman, Master Mechanic and some Wayne Dalton mfg by chamberlain. Fits units mfg after 1984. Does not include the small limit switch gear shown on the tip of the shaft in the pic. stk#(49)C3
