LiftMaster 041A7945 Dual Light Wire Harness Kit
The LiftMaster 041A7945 is a replacement dual-light wire harness kit for select Chamberlain chain drive garage door openers. It is used in opener heads that feature a dual light system and require this specific harness by parts diagram.
This is a wiring harness replacement part, not a complete electrical repair kit. Connector style, routing, and opener generation must match the original unit.
Compatibility / Application
041A7945 is compatible with various Chamberlain chain drive garage door openers that feature a dual light system when the owner manual or replacement parts diagram lists this harness kit.
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster / Chamberlain |
| Product Type | Dual-light wire harness kit |
| Part Number | 041A7945 |
| Application | Replacement wiring harness for dual-light opener head circuits |
| Compatible Operator Type | Select Chamberlain chain drive garage door openers with dual light system |
| Voltage | Model-specific opener wiring; follow original parts diagram |
| Included | Wire harness kit |
| Notes | Not a logic board, socket kit, travel module, or power cord |
Also Known As / Related Part Numbers
Technician Note
Before replacing a harness, identify why the original failed. Heat damage, pinched wires, incorrect bulbs, or socket problems can damage a new harness if the root cause is not corrected.
Before Ordering
- Confirm the opener is a compatible dual-light chain drive model.
- Match 041A7945 in the owner manual or parts diagram.
- Compare connector style and routing with the original harness.
- Inspect light sockets and housing for heat damage.
- Do not splice, bypass, or alter factory safety or power wiring.
Professional Advisory
Electrical wiring inside a garage door opener should be serviced with power disconnected. If wiring is burned, melted, or shorted, have a qualified garage door technician inspect the opener before installing replacement parts.
Product Questions & Answers
What is the 041A7945 wire harness kit used for?
041A7945 is a dual-light wire harness kit used on select Chamberlain chain drive garage door openers that feature a dual light system.
Is this harness for LiftMaster and Chamberlain openers?
The part is sold under the LiftMaster/Chamberlain family, but the manufacturer description specifically notes various Chamberlain chain drive garage door openers. Match the service part number from the opener diagram before ordering.
Does this kit replace the logic board?
No. This is a wire harness kit for the dual light circuit area. It does not replace the receiver logic board, travel module, light socket kit, or power cord.
When might this harness need replacement?
It may be needed when the original dual-light harness is damaged, cut, overheated, brittle, or missing during service. Light issues should be diagnosed before replacing the harness.
Can I repair a damaged harness by bypassing wires?
No. Do not bypass or alter opener wiring. Damaged wiring should be repaired with the correct replacement harness or handled by a qualified garage door technician.
