Replacement Idler Belt Pulley 144C54
144C54 is an Idler Belt Pulley Replacement Part. For use with various LiftMaster® and Chamberlain® Belt Drive Garage Door Openers. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility.
Red Spring Torsion - 0.225 Wire x 1.75 in. D x 29 in. L - Left (Black Cone)
Blue Spring Torsion – 0.262 in. x 1.75 in. D x 41 in. L – Left (Black Cone)
SKYLINK® - 6" Extender Kit for Trolley Belt/Chain Opener
SKYLINK® - BA-100 Battery Backup Case for Trolley Opener (Battery Included)
LiftMaster - Door Shaft Collar / 041D8615 

