The Challenger 220315 Combo Gear & Sprocket with bushing P-1012 is a factory-style replacement assembly for select Challenger chain-drive garage door openers. This component mounts to the opener’s output shaft and transfers motor torque to the drive chain, restoring travel when the motor runs but the door does not move. The included P-1012 bushing supports smooth, aligned rotation of the sprocket, helping reduce noise and wear. It is intended for use only on Challenger models that explicitly list part number 220315 in their parts diagram or service manual; always verify compatibility by checking your opener’s documentation or the label on the motor head.
Designed for residential and light commercial applications that use a chain-drive head unit, this gear and sprocket assembly is a direct replacement part to address worn or stripped drive components. Installation typically requires disconnecting power, placing the door in the down position, securing the rail, removing the opener cover, and swapping the assembly per the manufacturer’s instructions, reusing existing hardware as specified and setting chain tension to spec. Apply approved lubricant to the gear teeth if recommended by the opener manual. For safety, ensure the door is balanced and do not adjust door springs unless you are qualified; consider professional service if unsure. Common search terms include Challenger 220315 gear and sprocket, P-1012 bushing, garage door opener replacement part, chain drive repair, and Challenger opener parts.