The LiftMaster 20C14 Drive Belt is a genuine OEM replacement for select LiftMaster belt-drive garage door openers. It restores smooth, quiet operation by transferring motion from the motor sprocket to the trolley along the opener rail, helping maintain consistent door travel and reduced vibration. Use it to replace a stretched, frayed, or broken belt on compatible LiftMaster models that specifically call for part number 20C14.
Installation typically involves releasing tension at the idler, routing the new belt around the motor sprocket and trolley, then re-tensioning and verifying travel limits and force settings per the opener’s manual. Always disconnect power and ensure the door is down and secured before servicing. This OEM LiftMaster 20C14 drive belt is intended for residential and light commercial belt-drive applications; verify compatibility in the opener’s parts list or owner’s guide before ordering.