The LiftMaster 041A7279 Live Shaft Sprocket Kit, Chain #48 is a genuine OEM replacement for commercial door operators configured with a live shaft and #48 roller chain. Designed to mount on the door’s rotating shaft, this kit provides the drive interface for a chain-and-sprocket connection to the operator, restoring smooth, reliable torque transfer for sectional or rolling steel door systems. It’s ideal for servicing worn drive components or completing a new live-shaft setup that specifically calls for #48 chain.
As an authentic LiftMaster part, 041A7279 supports commercial and industrial applications where dependable power transmission and correct chain engagement are required. Use it only in systems specified for #48 chain and follow the operator’s service manual for selection and fit. Installation requires proper alignment with the operator sprocket, correct chain tension, and secure fastening to the shaft; lockout/tagout procedures and door restraint are essential during service. No programming is needed, as this is a mechanical drive component. For model compatibility and included hardware details, consult the official LiftMaster parts documentation for your specific operator.