41A5021 LiftMaster Belt Drive Complete Gear Kit

The LiftMaster 41A5021 is a complete belt drive gear and sprocket replacement kit for newer narrow tooth belts. This gear and sprocket kit is used with various belt drive garage door openers. This complete gear kit includes these items; helical gear, worm gear, wear bushings, grease and hardware needed to replace the belt drive gears.

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Note: You must have a belt drive system like the one below for this gear kit to work.