This is a T-Rail Trolley Replacement Kit. For use with various LiftMaster® and Chamberlain® Garage Door Openers that utilize a T-rail assembly. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility.
Genuine LiftMaster® replacement part.
Also known as:
1B1435, 41B3215, 41B2617, 65411, 1A955, 41A3489, 4A1020, 062245, 1B3869, 4A1051, 41B2771