The LiftMaster K07-17247 FDCL Coupling and Spider Kit is a genuine OEM flexible shaft coupling assembly used on select LiftMaster commercial door operators. This jaw-style coupling connects two rotating shafts—commonly between the drive/reducer and limit shaft—while absorbing shock, reducing vibration, and compensating for minor misalignment to help protect the drivetrain and maintain smooth, consistent operation. The replaceable elastomer spider acts as the wear element, helping to preserve surrounding components and keep rolling steel and sectional door operators running reliably.
Use this factory replacement part when servicing compatible LiftMaster commercial operators that call out K07-17247 in the parts diagram or service manual. Typical installation involves isolating power per lockout/tagout procedures, removing the worn coupling, aligning the hubs on the mating shafts with the specified gap, inserting the spider, and tightening fasteners to the manufacturer’s recommendations. No control-board programming is normally required, though limit settings should be verified after installation. Choose this LiftMaster coupling kit for an OEM replacement that supports dependable performance in demanding commercial applications and ensures proper fit and function with the intended operators.