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This part replaces the following legacy part #'s : 41C4470
041C4470 is a gear and sprocket replacement kit that is used with LiftMaster® Models ATS211 & ATS211R chain drive garage door openers. This complete gear kit includes; helical gear and top hat assembly, worm gear, wear bushings, grease, and hardware needed to replace the chain drive gears. Check the manual for your specific model number before ordering to ensure compatibility.
Genuine LiftMaster® replacement part.