The Wacker Neuson Contactor Relay is a genuine OEM component designed for the CT36-400E and CT30EDT electric walk-behind concrete power trowels. As a direct OEM replacement, this part is sourced through Wacker Neuson's authorized supply chain to ensure it meets the exact specifications of the original installed part. Compatible across multiple CT36-400E configurations and the 762mm/30in CT30EDT CE electric trowel, the is the correct part for restoring full electrical switching function to your machine. Verify your machine's serial number against the fitment data before ordering to confirm compatibility.
Key Features
- Correct Switching Specifications: — Engineered to the precise voltage and current ratings required by the CT-series electric trowel control circuit, ensuring proper motor engagement and release.
- Genuine OEM Sourcing: — Supplied directly through Wacker Neuson's authorized parts network, identical to the component installed at the factory.
- Broad CT-Series Compatibility: — Fits multiple CT36-400E configurations as well as the CT30EDT 762mm/30in CE electric walk-behind trowel.
- Restores Reliable Motor Control: — A failed contactor relay can prevent the trowel motor from starting or cause erratic on/off behavior; replacing it with part 5000157179 restores predictable, consistent motor switching.
- Electrical Safety Compliance: — As a primary switching component in the motor control circuit, using the correct OEM-rated relay is critical to safe machine operation and protection of downstream electrical components.
The contactor relay is an electromechanical switching device that controls the flow of electrical power to the trowel's motor. When the operator activates the machine, the relay closes its contacts to energize the motor circuit; when the machine is switched off, it opens the circuit to cut power. A worn or failed contactor relay can cause the motor to fail to start, run intermittently, or fail to shut down correctly — all of which interrupt finishing work and can create unsafe operating conditions. Replacing a faulty relay promptly keeps the electrical control system functioning as designed.
Part Details
| Part Number | 5000157179 |
|---|---|
| Old Part Number | 0157179 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Contactor Relay |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| CT36-400E Trowel | CT36-400E | 5000009448, 5000620828 |
| 762mm/30in CE Electric Walk-be hind Trowel | CT30EDT | 5000009063 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
