The LiftMaster 80-207-35 Key, 1/4" x 1/4" x 1", is a genuine OEM replacement square shaft key used in select LiftMaster gate operators and commercial door operators. Its function is to lock a hub—such as a sprocket, pulley, or gear—to a keyed shaft, ensuring positive torque transfer without slippage in the drive assembly. With precise 1/4-inch square by 1-inch dimensions, this key fits shafts and mating components that specify a 1/4-inch keyway, helping restore smooth, reliable operation in LiftMaster opener drive trains.
Typical use includes securing drive components within reduction stages or jackshaft assemblies where the operator’s parts diagram calls out part number 80-207-35. Installation is straightforward: disconnect power, align the keyways on the shaft and hub, insert the key fully, slide the hub into position, and tighten associated hardware per the equipment service manual. For compatibility, confirm the part number in your specific LiftMaster model’s documentation. Always follow lockout/tagout procedures and manufacturer safety guidelines when servicing any opener or gate operator.