Liftmaster LA412DC Swing Gate Parts
LiftMaster LA412DC Replacement Parts
Genuine LiftMaster replacement parts for the LA412DC linear actuator swing gate operator — the 18 V battery and solar-capable arm operator running the K1D8052-1CC main board in a plastic control box. Use the diagram above to find the key number for the part you need, then click any part number in the tables below to go straight to that product.
Check your main board before ordering control box parts. This page is the LA412DC — the board is K1D8052-1CC.
The original LA412 uses K001A6426-1 in a metal box, and the UL325 LA412U / LA412UL use K1D8388-1CC. The 18 V motor, release lever, rear connector and cable are the same across all three, but nothing else in the control box interchanges.
Two control box options on this model: the standard plastic box is K74-36798-3; the metal box is K74-36806-1. Do not confuse the metal box with K74-36806-5, which is the solar metal box for the LA412U.
The arm is LA412PKGUL on this generation — the LA412 takes K-LA412 and the LA412U/UL take LA412UL.
Common LA412DC Repairs
| Symptom | Usual cause | Parts to check |
|---|---|---|
| Gate runs slowly or dies after a cloudy spell | Battery not holding charge | 29-NP712 battery, K94-36891 battery harness |
| Operator completely dead | Main board or battery connection | K1D8052-1CC main board, K94-36891 harness |
| No response to remotes, wired controls work | Antenna | K77-36541 antenna |
| Gate will not reset after an obstruction | Reset switch | K94-36408-3 reset switch |
| No warning tone before the gate moves | Piezo alarm failed | K94-36411 piezo alarm |
| Arm hums but the gate does not move | Motor worn or arm seized | 041ASWG-0594SA motor, LA412PKGUL arm |
| Cannot release the gate by hand | Release lever or key | 041ASWG-0442SA lever, 041ASWG-0119 release keys |
| Water in the control box | Enclosure cracked or gasket perished | K74-36798-3 plastic box, K74-36806-1 metal box |
Standard Control Box
| Ref | Part # | Description |
|---|---|---|
| 1 | K74-36798-3 | Control Box, Plastic, LA412 |
| 2 | K94-36408-3 | Reset Switch, LA412 |
| 3 | K94-36411 | Piezo Alarm |
| 4 | K75-36635 | Control Board Mounting Bracket |
| 5 | K1D8052-1CC | Main Board, LA500 / LA400 / LA412 |
| 6 | 29-NP712 | Battery, 12V, 7AH |
| 7 | SOLPNL10W12V | Solar Panel — no longer available |
| — | K74-36806-1 | Control Box, Metal |
| — | K94-36891 | Battery Wire Harness, 7AH, LA412 |
| — | K77-36541 | Antenna |
| — | K77-19130-1 | Two Post Bracket Kit, LA400 / LA412 |
Gate Operator Arm
| Ref | Part # | Description |
|---|---|---|
| 8 | 041ASWG-0442SA | Release Lever |
| 9 | 041ASWG-0594SA | Motor, 18V |
| 10 | 041ASWG-0014SA | Rear Connector |
| 11 | LA412PKGUL | Single Arm |
| 12 | 041ASWG-0597SA | Cable, 6 ft |
| — | 041ASWG-0119 | Release Key, Qty 2 |
| — | K77-19130 | Hardware Kit, LA400 / LA412 |