41c4220 aka 41a2827 Chain drive Gear assembly kit used on all AC powered
Sears Craftsman, Liftmaster and Chamberlain Residential Garage door openers
Instructional Video on how to change gear kit
Gear & sprocket assembly. Complete with: shaft, sprocket spring washer, thrust washer, retaining ring, bearing plate, roll pins (2), drive gear & worm gear, helical gear w/retainer & grease
for units from 1993 to present
41c4220 Installation Instructions (click here)
41c4220 Installation video click here
for units from 1993 to present
41c4220 Installation Instructions (click here)
41c4220 Installation video click here
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