LiftMaster K75-30764 Control Board Mounting Bracket for LA400 Swing Gate Operators
The K75-30764 is a control board mounting bracket used inside compatible LiftMaster LA400 swing gate operator control enclosures. While it is a simple-looking part, the bracket plays an important service role by keeping the control board fixed in the correct position. If the board is allowed to hang loose or flex during operation, wiring and connector problems can develop over time.
This bracket is most often needed after enclosure damage, board replacement, heat-related plastic fatigue, corrosion, or previous service work where the original bracket was lost or broken. It should be matched to the LA400 parts breakdown and the existing control box style, especially on units that have had board or enclosure upgrades.
Compatible With
Supported listings identify this bracket specifically for LiftMaster LA400 swing gate operators.
- LiftMaster LA400 swing gate operators
- LA400 control box / control board mounting applications where K75-30764 is shown in the parts diagram
- Single and dual LA400 installations using the matching control enclosure style
- Not a universal bracket for LA412, LA500, RSL, RSW, or CSW operator control boxes
Features and Specifications
| Manufacturer | LiftMaster |
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| Product Type | Control board mounting bracket |
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| Part Number | K75-30764 |
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| Application | Control board support inside operator enclosure |
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| Compatible Operator Type | LA400 swing gate operator |
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| Material / Finish | Factory service bracket |
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| Notes | Verify enclosure and board generation before ordering |
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Also Known As / Related Part Numbers
- K75-30764
- 75-30764
- LM-K75-30764
- Control Board Mounting Bracket
- LA400 board bracket
Technician Note
If the control board bracket is broken, inspect the board mounting holes, enclosure posts, and wiring strain relief. Do not leave the board unsupported inside the box.
Before Ordering
- Confirm the operator is a LiftMaster LA400
- Check that the control box style matches the bracket application
- Inspect the control board for cracked mounting areas
- Check wire routing so harnesses are not pulling on the board
- Do not use as a substitute bracket for different LiftMaster control boxes
Professional Advisory
Control board mounting repairs should be performed with power disconnected and wiring handled carefully. If board damage, water intrusion, or burned terminals are present, have the operator inspected by a qualified gate technician.
Important Ordering Warning
This bracket does not include a replacement control board and does not correct board-level electrical faults by itself.
Product Questions and Answers
What is the K75-30764 bracket used for?
It supports and positions the control board inside compatible LiftMaster LA400 swing gate operator enclosures.
Does K75-30764 fit LA500 or LA412 operators?
Do not assume that it does. The supported application is LA400, and other control boxes should be verified separately.
Can a gate run with a loose control board?
It may run temporarily, but a loose board can strain wiring, connectors, and terminals, leading to unreliable operation.
Is the control board included with this bracket?
No. This is the mounting bracket, not the electronic control board.
When should the mounting bracket be replaced?
Replace it if it is cracked, missing, bent, corroded, or no longer holds the control board securely.
