91 3 19 shipping.
Garage door gear motor.
Hqrp drive gear 2 pack compatible with liftmaster 1245lmc r 1245r 1250 266 1250lmc 1255 266 1255 2r garage door opener access system coaster by hqrp 8 91 8.
This was a craftsman model 139 53976srt.
This is a video on how to change the gear sprockets in a craftsman garage door opener.
Amazon s choice for garage door motor genie chain drive 750 3 4 hpc garage door opener w battery backup heavy duty chain drive operate your garage door when the primary power is out wireless keypad included model 7035 tkv black.
If the gear and sprocket assembly breaks the motor runs but the door won t move.
Has been providing top quality installation and service for residential and commercial garage doors to richland ashland morrow knox and 4.
Located at the top of the motor unit the gear and sprocket assembly drives the chain that opens and closes the garage door.