This is a Chain Pulley Bracket Replacement Kit. For use with various LiftMaster® and Chamberlain® Chain Drive Garage Door Openers that utilize a T-rail. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility.
Genuine LiftMaster® replacement part.
Also known as:
041A3420, 41A4813, 41B4813, 41A3420