41A5021 Chamberlain Belt Drive Gear/ Worm Kit

The 41A5021 drive and worm gear replacement kit is compatible with belt drive garage door openers. This gear kit includes the following items (1) helical gear, (1) worm gear, (1) grease, wear bushings, and hardware needed to replace the gears.

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