GEAR AND SPROCKET KIT, AC BELT
041A4885-4 is a Gear and Sprocket Replacement Kit. For use with various LiftMaster® and Chamberlain® AC Belt Drive Garage Door Openers; manufactured after 2011 only. Complete kit includes: Helical gear and top hat assembly, worm gear, and lithium grease tube (0.5 oz.). Check the owner's manual or replacement parts diagram for specific part information before ordering to ensure compatibility.