Replace Sprocket On Liftmaster Garage Door Opener

We design and engineer residential garage door openers commercial door operators and gate entry systems.

Replace sprocket on liftmaster garage door opener.

Chain drive garage door openers have a sprocket that is attached at the top of the motor. Kipa pack 3 drive gear for sears crafsman liftmaster chamberlain garage door openers 1984 up 41a2817 41c4220a 81b0045 drive gear 32 teeth bore size 1 2 durable top quality 4 7 out of 5 stars 33 9 75 9. Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products. This gear and sprocket assembly is compatible with various chain drive garage door openers.

This diy repair guide explains how to replace the gear and sprocket assembly on a chain drive garage door opener. Helical gear and top hat assembly worm gear wear bushings grease and hardware needed to replace the chain drive gears. 041c4220a is a complete chain drive gear and sprocket replacement kit. If the gear and sprocket assembly breaks the motor runs but the door won t move.

The gear assembly includes drive gear assembly worm gear wear bushings grease hardware and instructions for replacement. 025c0020 is a replacement screw drive sprocket coupling. This is a video on how to change the gear sprockets in a craftsman garage door opener. Kipa pack 3 drive gear for sears crafsman liftmaster chamberlain garage door openers 1984 up 41a2817 41c4220a 81b0045 drive gear 32 teeth bore size 1 2 durable top quality 4 6 out of 5 stars 38 9 75.

Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door. Over time the sprocket s teeth can wear and the chain may jump or skip when the opener raises the door. This was a craftsman model 139 53976srt. Check the manual for your specific model number before ordering to ensure compatibility.