Craftsman Garage Door Opener Chain Sprocket

For 8 door 1270 1280 1280r 74 45.

Craftsman garage door opener chain sprocket. This excess tension causes the gear that moves the chain to grind down. Assembly also fits chamberlain chain drive garage door opener models 1240r 1245r 1246r 1255r and 1256r. Amazon s choice for craftsman garage door sprocket replacement for liftmaster 41c4220a gear and sprocket kit fits chamberlain sears craftsman 1 3 and 1 2 hp chain drive models 4 8 out of 5 stars 1 216. Step by step instructions included free tech support available see video compatibility.

Belt rail extension kit. Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door. We carry sears craftsman garage door opener lens covers made for use only with craftsman door operators. This diy repair guide explains how to replace the gear and sprocket assembly on a chain drive garage door opener.

Chain rail extension kit. Craftsman garage door openers are trusted to do what you need them to do. If the chain was installed too tightly on the garage door opener it can make opening the door more difficult for the automatic opener. 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.

41a5585 1 liftmaster chain drive gear and sprocket for 3 4 hp 4 30 71. Belt rail extension kit. 41c4220a 41a2817 gear sprocket assembly replacement. This is a video on how to change the gear sprockets in a craftsman garage door opener.

41a3589 1 liftmaster belt assy. 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. This was a craftsman model 139 53976srt. 1 2 hp chain drive garage door opener kit.

If the gear and sprocket assembly breaks the motor runs but the door won t move. If the gear becomes too worn it will no longer be able to move the chain. A list of compatible openers accompanies each part.