LiftMaster K74-36806-5 Metal Solar Control Box for LA412 Series Operators
The LiftMaster K74-36806-5 is a metal solar control box replacement for select LA412 series swing gate operator systems. In a solar actuator installation, the control box is more than a cabinet: it keeps the control board, batteries, charge wiring, accessory wiring, and solar input connections protected from weather and physical damage. A damaged solar box can create intermittent low-battery faults, corrosion on terminals, and unreliable gate movement.
This part should be used only on LA412 series solar configurations that call for the metal solar control box. It should not be treated as the same part as K74-36806-4 for LA500U or as a generic metal cabinet. Solar systems are especially sensitive to battery condition, wiring polarity, charging performance, and water intrusion, so replacing the enclosure is a good time to inspect the entire low-voltage control area.
Compatible With
Use with select LiftMaster LA412 series solar swing gate operator applications requiring the K74-36806-5 metal solar control box.
- LiftMaster LA412 series swing gate operators using solar applications
- LiftMaster LA412U / LA412UL style solar systems when the parts diagram lists K74-36806-5
- Solar-powered linear actuator swing gate installations using the matching metal box
- Applications requiring a metal solar control box replacement kit
- Not a confirmed replacement for LA500U K74-36806-4 or plastic LA412U boxes unless the diagram confirms it
Features and Specifications
| Specification | Details |
|---|
| Manufacturer | LiftMaster |
| Product Type | Metal solar control box replacement kit |
| Part Number | K74-36806-5 |
| Application | LA412 series solar swing gate operator control enclosure |
| Compatible Operator Type | Solar linear actuator swing gate operator |
| Material / Finish | Metal cabinet |
| Power Application | Solar gate operator systems |
| Included Components | Solar control box kit; confirm included components in current listing |
| Notes | Match solar control box configuration and parts diagram before ordering |
Also Known As / Related Part Numbers
- K74-36806-5
- 74-36806-5
- LM-K74-36806-5
- LiftMaster K74-36806-5
- Metal solar control box
- Solar control box metal LA412
- K74-36806-5MC where listed as a kit reference
Technician Note
When replacing a solar control box, do not just move corroded components into the new enclosure. Check battery age, battery terminals, solar panel voltage at the controller, water entry points, and wire strain reliefs.
Before Ordering
- Confirm the operator is an LA412 series solar swing gate system
- Verify the parts diagram calls for K74-36806-5
- Inspect batteries, solar leads, charge wiring, antenna lead, and control board before transfer
- Confirm whether cabinet hardware or harnesses are included in the current kit
- Test safety devices and battery charging after service
Professional Advisory
Control box and E-box replacement involves operator power, batteries, wiring, and safety-device connections. Installation and electrical troubleshooting should be performed by a qualified gate technician, especially on commercial operators, high-voltage systems, or any gate that moves unexpectedly. Do not bypass monitored entrapment protection or required safety devices.
Important Ordering Warnings
- Do not confuse K74-36806-5 with the LA500U metal control box K74-36806-4
- Do not assume a new enclosure fixes weak batteries or a failed charging circuit
- Do not bypass monitored safety inputs during solar control box service
Product Questions and Answers
What operator family is K74-36806-5 used with?
It is listed for various LiftMaster LA412 series swing gate operators using solar applications.
No. K74-36806-4 is associated with LA500U metal control box applications, while K74-36806-5 is the LA412 solar metal control box.
Does this include the solar panel or batteries?
Treat it as the control box replacement kit only unless the active product listing specifically states that solar panels, batteries, or electronics are included.
Why does the solar configuration matter?
The internal layout, battery area, charging wiring, and accessory routing can differ from non-solar control boxes.
What should be tested after installation?
Battery voltage, solar charging, board operation, limit setup, accessories, remotes, and all required monitored safety devices should be tested.
