LiftMaster Gear & Sprocket Chain

The LiftMaster 041C4220A is a Chain Drive Gear and Sprocket Kit, for use with various 1/2 HP LiftMaster® and Chamberlain® Chain Drive Garage Door Openers, manufactured after 1997 only. Kit includes: helical gear and top hat assembly, wear bushings, worm gear, lithium grease, and replacement hardware. Check the installation manual or replacement parts diagram for specific part information to ensure compatibility.