Liftmaster chamberlain craftsman garage door opener comp gear kit for 41a5021 4 9 out of 5 stars 46.
Craftsman garage door sprocket assembly.
For example our liftmaster 41c4220a chain drive gear and sprocket assembly can replace worn gears and sprockets on a sears craftsman garage door opener a liftmaster operator or a chamberlain opener.
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Gear and sprocket assembly 41c4220a is an original equipment manufacturer oem part that fits most craftsman 139 series chain drive garage door openers manufactured after 1993.
Because craftsman and liftmaster parts are divisions of the chamberlain group you will find that many parts are interchangeable.
Assembly also fits chamberlain chain drive garage door opener models 1240r 1245r 1246r 1255r and 1256r.