LiftMaster MA031 Padded Barrier-Arm Adapter Collars — Two-Pack
The LiftMaster MA031 is the two-collar adapter set specified for documented padded barrier-arm options in the Mega Arm family. The manufacturer lists MA031 as required for the MA025 12-foot padded arm and MA028 14-foot padded arm, so these collars are part of selecting the correct attachment arrangement rather than an optional substitute for arbitrary mounting hardware. Confirm the exact operator, arm option and bracket before ordering. This package provides adapter collars; the padded arm, foam cover and complete arm bracket are separate items.
Compatibility — Models, Versions and Exclusions
| Model or selection point | Compatibility requirement |
|---|---|
| MA025 padded-arm option | Manufacturer accessory table specifies MA031. |
| MA028 padded-arm option | Manufacturer accessory table also specifies MA031. |
| Other arm sizes or profiles | No universal adapter fit established. |
| Standard unpadded arms | Use their own documented attachment arrangement. |
| MA036 shaft collar | Different component and function; do not substitute by the word collar. |
Match the Arm Option to Its Required Attachment Parts
A barrier arm should be selected as a complete approved arrangement, including the operator configuration, bracket and required attachment pieces. These adapter collars address the documented padded-arm mounting requirement. They do not establish that an arm of any length or weight can be fitted to any barrier operator, and the foam padding does not eliminate the hazards of a moving arm.
When replacing an existing padded arm, inspect the bracket and attachment area for damage before reusing parts. A vehicle strike can affect more than the visible padding or tube. Have the technician compare the current installation with the applicable arm instructions, support the arm during service and confirm the required adjustment after reassembly. Do not improvise spacers or alter the attachment simply because a different arm appears to fit.
Specifications and Product Identification
| Specification | Details |
|---|---|
| Part number | MA031 |
| Product | Padded-arm adapter collars |
| Quantity | Two collars |
| Documented arm option | MA025: 12 ft × 4 in. padded arm |
| Additional documented option | MA028: 14 ft × 4 in. padded arm |
| Selection basis | Approved operator, padded arm and bracket arrangement |
Before Ordering
- Identify the operator and exact padded-arm model.
- Confirm MA031 in the approved arm attachment instructions.
- Inspect the bracket and surrounding hardware for impact damage.
- Confirm whether collars alone or additional arm components are required.
Package Contents and Separate Requirements
The manufacturer identifies two adapter collars in the MA031 package. The arm tube, padding, complete arm bracket, shear pin, operator and unrelated shaft hardware are not promised as included. Select replacement padding or a complete padded arm using its own service reference. If a damaged installation needs additional fasteners or bracket parts, confirm those items separately instead of assuming they are included with this two-collar set.
Safety Warnings — Read Before Installation or Service
- WARNING: A moving or unsupported barrier arm can cause serious injury. Use qualified personnel for arm attachment and replacement.
- Disconnect mains and backup power as applicable and support the arm before loosening any attachment hardware. Keep the lane clear during service.
- Use only the approved arm and attachment arrangement. Padding does not replace required protection devices or make an impact harmless.
- Check secure attachment, travel and all required safety functions before returning the barrier to vehicle traffic. Provide the intended separate pedestrian route.
Related Products and Important Differences
- LMRRUL monitored photo eye — a separate protection option only where the exact operator and control revision approve it; not a universal legacy retrofit.
- LMWEKITU monitored wireless edge kit — a separate edge communication system for approved controls and resistive edges; not a replacement for this mechanical or electrical service part.
Frequently Asked Questions
How many collars are supplied?
The manufacturer specifies two adapter collars.
Do MA025 and MA028 require this set?
Both padded-arm options are listed with MA031 as a requirement in the cited accessory table.
Is the padded arm included?
No. The arm and padding are separate products.
Can these collars adapt any arm to any operator?
No. Verify the complete operator, arm and mounting arrangement before selection.
Need Help Confirming the Right Product?
Contact Garage-DoorParts.com before ordering. Send the full equipment model, readable part labels and photographs of the installed assembly. Include the dimensions, electrical configuration or accessory details relevant to your project so the listing can be checked against the actual installation.
Details
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