The LiftMaster K94-37461 is a replacement alarm and harness assembly used on select LiftMaster commercial gate operators. In a vehicular gate operator, the audible alarm is not a decorative accessory; it is part of the operator warning and fault-notification system. It can alert users and technicians to movement, obstruction-related events, or control-board conditions depending on how the specific operator is designed.
This kit includes the alarm and wiring harness needed to reconnect the warning device to the compatible LiftMaster controller. It is commonly used on SL3000 Series commercial slide gate operators and CSW200 Series commercial swing gate operators. Correct fitment matters because LiftMaster uses different alarm assemblies, harness ends, mounting arrangements, and control-board inputs across operator families.
| Manufacturer | LiftMaster |
|---|---|
| Product Type | Alarm and harness kit |
| Part Number | K94-37461 |
| Application | Audible alarm / warning circuit replacement |
| Compatible Operator Type | Commercial slide and swing gate operators |
| Commonly Associated Models | SL3000 Series, CSW200 Series |
| Included Components | Alarm, wiring harness, and mounting hardware when supplied by manufacturer |
| Notes | Use only where the operator diagram lists this harnessed alarm assembly |
If an alarm has been disconnected because it was sounding during a fault, find and correct the actual cause. Replacing or silencing the alarm does not repair an entrapment input, obstruction condition, limit issue, or monitored safety problem.
Audible warning devices and fault alarms are safety-related components. Do not remove, bypass, or permanently silence the alarm to keep an operator running.
It is commonly listed for LiftMaster SL3000 Series commercial slide gate operators and CSW200 Series commercial swing gate operators, including U or UL versions when confirmed by the parts diagram.
Yes. K94-37461 is sold as an alarm and harness assembly, and some listings also reference mounting hardware.
A generic siren is not recommended. The correct LiftMaster assembly should match the operator wiring, connector, mounting, and control-board requirements.
The alarm may sound because of an obstruction event, entrapment input, safety-device issue, limit problem, or other operator fault. Read the diagnostic display before replacing parts.
No. The alarm should not be bypassed or disconnected to keep the gate operating. A qualified technician should correct the underlying problem and verify safe operation.