The LiftMaster 11-10987 CLUTCH SHAFT, MH is a genuine OEM replacement component for the LiftMaster Model MH medium-duty hoist (jackshaft) commercial door operator. Positioned within the operator’s friction clutch assembly, this shaft transmits drive torque while enabling the clutch to slip under overload to help protect the door, operator, and hardware. Replacing a worn or bent clutch shaft restores smooth torque transfer, consistent clutch engagement, and reliable door operation on jackshaft-driven sectional and rolling steel doors commonly used in light-commercial settings.
Designed specifically for the LiftMaster MH operator, this factory part maintains original fit and function for dependable performance. Installation involves disassembling the clutch assembly and should be performed by a qualified technician following the LiftMaster service manual, including proper clutch torque adjustment after reassembly. For safety, disconnect power and follow lockout/tagout procedures, verify door balance, and test all entrapment protection and limits after installation. Use this OEM LiftMaster clutch shaft when servicing MH hoist operators in warehouses, service bays, storage facilities, and similar commercial applications where an authentic replacement part is required.