***used came off an 8550 Liftmaster ***The Liftmaster Chamberlain Craftsman Garage Door Opener 7ft REPLACEMENT BELT is a new belt drive assembly part designed specifically for LiftMaster and Chamberlain garage door openers. It is a high-quality replacement belt that ensures smooth and efficient operation of your garage door. This package includes one 7ft belt that is compatible with various LiftMaster and Chamberlain models, providing a reliable solution for maintaining the functionality of your garage door opener system.