MOTOR PULLEY, 2"OD, 1/2"B
144B0042 is a Motor Pulley (2"OD/1/2"B) Replacement Kit. For use with various LiftMaster® and Chamberlain® Screw Drive Garage Door Openers. Check the owner's manual or replacement parts diagram for specific part information before ordering to ensure compatibility.
Also known as: 144B42