LiftMaster RJO Power Cord Replacement
The LiftMaster 041B0122 is an AC power cord replacement kit used on select RJO-style wall mount garage door openers. On these units, the opener mounts beside the torsion shaft rather than on a ceiling rail, so the cord routing, cabinet opening, strain relief area, and connection style are different from many standard chain drive or belt drive trolley openers.
A replacement power cord is commonly needed when the original cord is cut, damaged, heat affected, missing from a used operator, or no longer seats properly at the opener. Because this part carries line voltage into the operator, it should only be installed with power disconnected and with the opener's service instructions followed. If the outlet, cord end, or internal wiring shows overheating or damage, the repair should be handled by a qualified garage door technician.
This cord should be ordered by part number and opener model, not by appearance alone. LiftMaster uses several AC cord kits across residential openers, and an RJO cord is not automatically interchangeable with the 6 ft power cord used on many rail-style openers.
Compatible With
- Select LiftMaster RJO Series wall mount garage door openers when the parts diagram calls for 041B0122 or 41B122
- Select Chamberlain RJO Series wall mount garage door openers using the same cord reference
- Common wall mount / residential jackshaft style applications, including model families such as 8500, 8500C, RJO20C, and related RJO references when confirmed by parts diagram
- Not a universal replacement for standard ceiling-mounted chain drive, belt drive, or screw drive opener power cords
- Not a substitute for 041B4245-1 / 41B4245 style 6 ft power cord kits unless the operator parts diagram confirms interchange
Fitment note: Compatibility should be verified by the opener model number, original part label, rail style, wiring layout, and replacement parts diagram. Similar-looking LiftMaster, Chamberlain, Craftsman, Raynor, and AccessMaster parts are not always interchangeable.
Features & Specifications
| Manufacturer | LiftMaster / Chamberlain Group |
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| Product Type | AC power cord replacement kit |
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| Part Number | 041B0122 |
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| Application | RJO / wall mount garage door opener service |
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| Voltage | Line-voltage AC cord; match opener rating |
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| Included Components | Power cord kit only |
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| Notes | Used where the opener parts diagram lists 041B0122 or 41B122 |
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Also Known As / Related Part Numbers
- 041B0122
- 41B122
- 041B122
- LiftMaster 041B0122
- Chamberlain 041B0122
- RJO power cord kit
- Wall mount garage opener power cord
Technician Note
If the old cord was damaged by heat, arcing, water intrusion, rodents, or a loose outlet, do not treat the cord as the only problem. Inspect the outlet, strain relief area, and opener connection point before returning the unit to service.
Before Ordering Checklist
- Confirm the opener is a wall mount / RJO style unit, not a standard rail opener.
- Match the original parts diagram to 041B0122 or 41B122.
- Inspect the outlet and opener cord entry for heat marks or corrosion.
- Disconnect power before servicing the cord.
- Use a qualified technician if internal wiring or line-voltage damage is present.
Professional Advisory
Garage door opener power repairs involve line voltage. Do not splice damaged cords or bypass strain reliefs. Replace the cord with the correct service kit and have questionable electrical conditions checked before operation.
Product Questions & Answers
Is 041B0122 the same as 41B122?
Yes. 41B122 is a common related reference for the LiftMaster 041B0122 RJO power cord kit.
Will this fit a standard chain drive opener mounted on the ceiling?
Usually no. This kit is intended for select RJO wall mount openers. Many ceiling-mounted openers use a different power cord kit such as 041B4245-1.
Can I use this if the old cord was cut?
It can be used when the opener model and parts diagram call for 041B0122. The opener wiring and outlet should also be checked for damage before use.
Does this power cord repair the opener if it has no power?
Only if the original cord is the failed part. A dead opener can also be caused by outlet, logic board, transformer, wiring, or internal power problems.
Should a technician install this part?
A qualified garage door technician is recommended if there is any sign of electrical damage, overheating, loose wiring, or uncertainty about the opener's cord connection.
