This is a Square Rail Idler Pulley replacement part. For use with various LiftMaster® Chain Drive Garage Door Openers that use a square rail. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility.
Genuine LiftMaster® replacement part.
Also known as:
144C56, 144C0056, 062316, 114C56
Chamberlain 144C56 Idler Pulley (Square Rail) for Garage Operators Replacements. Liftmaster & Chamberlain Replacement Garage Door Opener Parts.