The LiftMaster 15-50B12PJH garage door opener sprocket is a S50B12 (1/2-horsepower to 2-horsepower) replacement socket for LiftMaster GH industrial-duty commercial garage door operators. This one-piece sprocket is locked into position by a shaft key. With our easy 30-day return policy, shop with confidence for new LiftMaster parts at the lowest prices.
S50B12 (1/2-2 HP)
For commercial LiftMaster GH garage door operators