The LiftMaster 41C5511 High Voltage Wire Harness is an OEM replacement harness for select LiftMaster residential garage door openers. This assembly carries line-voltage power within the operator head, providing the factory-terminated connections between the incoming AC supply and internal components such as the logic/control board and drive system. It is designed to restore safe, reliable power distribution when the original harness has been damaged by heat, abrasion, misrouting, or electrical events. As a genuine LiftMaster replacement part, 41C5511 uses model-specific connectors that match compatible opener circuits and help ensure correct polarity and secure mating during service.
Use this high-voltage wire harness only on LiftMaster openers that explicitly list 41C5511 in their parts diagrams or service manuals; it is not universal and is not intended for low-voltage accessories. Installation typically involves removing the opener’s light lens or cover, disconnecting power, unplugging the existing harness, routing the new harness along the original path, and fully seating the keyed connectors to the control board and related components, following the official LiftMaster service instructions for the exact model. For safety, disconnect AC power at the breaker before servicing, and be aware that capacitors inside the operator can retain a charge—service should be performed by qualified personnel. This LiftMaster 41C5511 High Voltage Wire Harness is an ideal OEM replacement part for repairing or maintaining compatible LiftMaster garage door openers used in residential applications.