The LiftMaster 041A7814 Dual Wire Harness Kit is a genuine OEM replacement harness designed for select LiftMaster residential garage door openers. This low‑voltage harness provides two accessory leads from a single board connection, allowing proper hookup of compatible control and safety circuits as specified in the opener’s parts diagram and installation manual. It is intended to restore reliable connections when a factory harness is damaged or missing, and to ensure accessory wiring matches the original configuration called out by the manufacturer.
Use this kit only on models that specifically list 041A7814 in their parts documentation. Installation is straightforward: disconnect power to the operator, route the harness away from moving components, insert the keyed plug into the control board connector, and attach the leads to the designated terminals or mating connectors per the opener’s wiring diagram. This component carries only low‑voltage control signals; no special programming is typically required beyond standard safety checks such as aligning and testing photoelectric safety devices where applicable. For residential applications, always follow the opener’s manual and UL 325 safety practices, verify polarity on monitored accessories if required, and perform a full safety reversal test after wiring. Common searches for this item include LiftMaster 041A7814 replacement, dual wire harness kit for garage door opener, OEM harness for door control and safety connections, and compatible LiftMaster residential opener wiring repair.