41C4220A Compatible Replacement Chain Drive Gear Kit Replaces The Model 41C4220.
 
This is a compatible 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.
 
We process orders on the following business day and provide a 30-day return policy for your convenience.