LiftMaster 041B6228 Mounting Bracket Kit, RJO
The LiftMaster 041B6228 RJO mounting bracket kit is used to mount select residential jackshaft wall-mount garage door openers in the correct position beside the torsion shaft. Unlike a traditional ceiling-mounted opener, an RJO opener depends on proper side mounting, shaft alignment, and secure bracket support. A bent, missing, or incorrect bracket can cause poor alignment, movement at the opener head, cable tension issues, or noisy operation.
Manufacturer references identify 041B6228 as compatible with the 3800 RJO Series jackshaft operators, and related listings commonly reference 8500, 8500W, and DDO8900W style wall-mount operators where the parts diagram supports the same bracket. Wall-mount opener installations also depend on torsion shaft condition, drums, cables, door balance, and cable tension monitor setup, so the bracket should be treated as one part of the complete mounting system.
Compatible With
Compatibility is based on the opener model, rail style, and the replacement parts diagram. Use the list below as a fitment guide, not as a universal interchange list.
- LiftMaster 3800 RJO Series jackshaft operators
- Select LiftMaster 8500 wall-mount garage door openers where the parts diagram confirms the bracket
- Select LiftMaster 8500W wall-mount garage door openers where the parts diagram confirms the bracket
- Select DDO8900W dock door/wall-mount operator references where the parts diagram confirms the bracket
- Residential jackshaft/RJO wall-mounted openers that list 041B6228, 41B6228, 041C0902, 41C0902, or 41A6228
- Not for standard ceiling-mounted chain, belt, or screw drive openers
Features & Specifications
| Manufacturer | LiftMaster / Chamberlain Group |
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| Product Type | RJO / jackshaft mounting bracket kit |
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| Part Number | 041B6228 |
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| Application | Wall-mount opener mounting support |
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| Compatible Operator Type | Select residential jackshaft/RJO openers |
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| Included Components | Service kit/components as supplied by manufacturer |
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| Notes | Verify original part number and parts diagram before ordering |
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| Model References | 3800 RJO Series; verify 8500, 8500W, and DDO8900W by diagram |
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Also Known As / Related Part Numbers
- 041B6228
- 41B6228
- 041C0902
- 41C0902
- 41A6228
- RJO mounting bracket kit
- Jackshaft mounting bracket kit
Technician Note
Match this part to the original LiftMaster or Chamberlain parts diagram. Similar-looking garage opener service parts can differ by rail style, opener generation, connector layout, or drive type.
Before Ordering
- Confirm the opener is a residential jackshaft/RJO wall-mount model.
- Match the parts diagram to 041B6228, 41B6228, 041C0902, 41C0902, or 41A6228.
- Inspect the torsion shaft, door balance, drums, cables, and mounting surface.
- Check cable tension monitor and lock accessory requirements if applicable.
- Do not use as a substitute for standard rail or ceiling opener brackets.
Professional Advisory
For electrical diagnosis, spring-loaded door issues, damaged rail hardware, or unsafe door movement, use a qualified garage door technician. Do not bypass monitored safety devices or operate a door that is out of balance.
Important Ordering Warnings
- Incorrect wall-mount bracket alignment can affect opener operation and cable tension monitoring.
- RJO openers should only be installed on compatible torsion spring sectional doors.
- A door that is out of balance must be corrected before opener service.
Product Questions & Answers
Which opener family is 041B6228 mainly used with?
It is mainly listed for LiftMaster 3800 RJO Series jackshaft operators, with some references also listing 8500, 8500W, and DDO8900W style applications where confirmed.
Is this a rail bracket?
No. It is for wall-mounted RJO/jackshaft opener mounting, not a standard rail or header bracket.
What related part numbers should I check?
Related numbers include 41B6228, 041C0902, 41C0902, and 41A6228.
Can this fix a noisy RJO opener?
Only if the noise is related to loose or incorrect mounting. Door balance, torsion shaft alignment, cables, and opener setup should also be checked.
Does this fit belt drive ceiling openers?
No. It is for select wall-mount jackshaft/RJO opener applications.
