The Chamberlain® Part 041C4220A is a replacement chain drive gear and sprocket kit. This gear and sprocket kit is compatible with various chain drive garage door openers manufactured since 1984. This complete kit includes these items: Helical gear, worm gear, wear bushings, grease, and hardware needed to replace the chain drive gears.
* 041C4220A or 41C4220A are a direct replacement parts and must match to your owners manual to be compatible with your opener.
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