LiftMaster K74-34392 Antenna for LA412 and Select Swing Gate Operator Control Boxes
The LiftMaster K74-34392 antenna is a replacement radio antenna component for select LiftMaster swing gate operator control boxes. It is commonly listed for LA412 and LA412-S solar-powered swing gate systems, where it helps the receiver pick up signals from compatible remote controls, keypads or access-control transmitters. A missing or damaged antenna can reduce range or create intermittent command reception.
This antenna should not be confused with the radio receiver itself. Replacing the antenna will not convert frequencies, add Security+ 2.0, or make incompatible transmitters work. Range problems should be diagnosed by checking the remote battery, receiver type, antenna routing, nearby metal surfaces, enclosure condition and interference sources before assuming the antenna is the only issue.
Features and Specifications
| Specification | Details |
|---|
| Manufacturer | LiftMaster |
| Product Type | Antenna |
| Part Number | K74-34392 |
| Application | Radio reception antenna for select swing gate controls |
| Compatible Operator Type | LiftMaster DC solar swing gate operators |
| Common Model Reference | LA412 and LA412-S |
| Notes | Does not include or replace the receiver |
Compatible With
- LiftMaster LA412 solar swing gate operators
- LiftMaster LA412-S gate operator applications where listed
- Select LiftMaster LA412DC control box configurations
- LiftMaster swing gate operator control boxes that specifically call for K74-34392
Also Known As / Related Part Numbers
- K74-34392
- K7434392
- 74-34392
- LA412 antenna
- LA412-S antenna
- LiftMaster replacement antenna
Technician Note
If remote range is poor, verify the receiver and transmitter technology first. A good antenna will not solve a mismatched remote frequency, bad receiver, damaged control board or interference problem.
Before Ordering Checklist
- Confirm K74-34392 on the LA412 parts diagram.
- Check the original antenna connection and routing.
- Confirm the remote and receiver are compatible.
- Inspect for water damage or corrosion in the control box.
- Do not route the antenna where it can be pinched or grounded against metal.
Professional Advisory
Antenna replacement is typically low-voltage service, but the control box may contain batteries and powered circuits. Secure the gate and disconnect power before opening the enclosure.
Product Questions and Answers
Is K74-34392 a receiver?
No. K74-34392 is the antenna only. It does not include the radio receiver or control board.
Which model is this antenna most commonly associated with?
It is most commonly associated with LiftMaster LA412 and LA412-S solar swing gate operator applications.
Will this improve remote range?
It can help if the original antenna is missing, damaged or poorly connected, but range can also be affected by the receiver, remote battery, interference or operator location.
Does this change the remote frequency?
No. The antenna does not change frequency or security technology.
Can I use this on an LA400 or LA500?
Use it only when the parts diagram for that specific control box calls for K74-34392.
