Liftmaster KMALEDHDWCB, LED BARRIER ARM HARDWARE KIT
The LiftMaster KMALEDHDWCB is a genuine replacement hardware kit for LED barrier arm installations on select LiftMaster Mega Arm Series operators. Barrier arms see constant vibration, wind loading, and vehicle-area exposure, so the correct hardware is important for keeping the LED arm mounted securely and aligned with the operator hub. This kit is most useful when the original LED arm hardware has been lost during arm replacement, damaged during impact, or corroded from outdoor service. It should be ordered for operators that are already equipped for the matching LED barrier arm system, not as a standalone conversion for every barrier gate. Arm length, operator model, and LED harness routing should all be checked before installation.
Compatible With
- LiftMaster Mega Arm Series barrier gate operators equipped with an LED barrier arm
- LiftMaster MA Series Mega Arm barrier operator applications when using the matching LED arm hardware
- LiftMaster MAT Series Mega Arm Tower barrier operator applications when using the matching LED arm hardware
- 12-foot LiftMaster LED barrier arm assemblies when confirmed by parts diagram
- 17-foot LiftMaster LED barrier arm assemblies when confirmed by parts diagram
- Mega Arm / Mega Arm Tower installations where the original LED arm hardware kit is identified as KMALEDHDWCB
Features & Specifications
| Manufacturer | LiftMaster |
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| Product Type | LED barrier arm hardware kit |
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| Part Number | KMALEDHDWCB |
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| Application | Replacement hardware for LED barrier arm mounting |
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| Compatible Operator Type | Mega Arm Series barrier gate operators |
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| Compatible Arms | Select 12-foot and 17-foot LED barrier arms |
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| Notes | For operators already configured for the matching LED arm assembly |
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Also Known As / Related Part Numbers
- KMALEDHDWCB
- KMA LED HDW CB
- MALEDHDWCB
- LED barrier arm hardware kit
- Mega Arm LED arm hardware
- Mega Arm Tower LED arm hardware
Technician Note
Use this kit to replace the correct arm hardware, not to compensate for a bent arm hub, damaged output shaft, loose operator cabinet, or incorrect arm length. Inspect the barrier arm hub and LED wiring before installing new hardware.
Before Ordering
- Confirm the operator is a LiftMaster Mega Arm Series unit
- Confirm the arm is an LED barrier arm, not a standard non-LED arm
- Check whether the arm is 12 feet or 17 feet and verify the matching parts diagram
- Inspect the arm hub and output shaft for impact damage
- Verify LED wiring and connectors are still intact before reassembly
Important Ordering Warnings
- This kit does not convert every barrier operator to an LED arm system
- Do not reuse damaged arm hardware on a traffic control barrier
- A bent arm, hub, or shaft should be repaired before installing new hardware
Professional Advisory
Barrier arm service should be performed with the operator secured and the arm supported. After installation, check arm balance, warning lights, safety loop operation, and vehicle-area safety devices.
Product Questions & Answers
What is KMALEDHDWCB used for?
It is a replacement hardware kit for select LiftMaster Mega Arm Series operators that use an LED barrier arm.
Does this kit include the LED barrier arm itself?
No. This listing is for the hardware kit, not the full barrier arm assembly unless the product page specifically states otherwise.
Will it fit a non-LED Mega Arm barrier arm?
It is intended for LED arm configurations. Non-LED arms may use different hardware, so the parts diagram should be checked.
Which Mega Arm operators are commonly associated with it?
It is commonly associated with LiftMaster MA and MAT Mega Arm Series barrier operators equipped with matching LED arms.
Can damaged barrier arm hardware be ignored if the arm still moves?
No. Loose or damaged arm hardware can create unsafe arm movement, alignment problems, and additional wear on the operator.
