The Wacker Neuson is a genuine OEM Coolant Sensor Wiring Harness designed for the G25, G50, G70, and G85 series mobile generators. As a direct OEM replacement sourced through the Wacker Neuson parts network, the is engineered to the exact connector layout, wire gauge, and insulation specification of the original harness. This harness is compatible across both skid-mounted and cold-weather generator configurations within the G-series lineup, making it the correct replacement for a broad range of field units. Verifying your generator's model and machine number against the fitment list before ordering ensures a straightforward installation.
Key Features
- OEM Connector and Circuit Integrity — Manufactured to the original wiring schematic, with factory-matched connectors that seat correctly to the coolant sensor and control circuit without adaptation.
- Broad G-Series Coverage — Fits G25, G50, G70, and G85 mobile generators in both skid-mounted and cold-weather configurations, covering a wide range of Wacker Neuson portable power equipment.
- Accurate Signal Transmission — A sound harness delivers uninterrupted coolant temperature data to the generator's control panel, allowing the machine to respond correctly to thermal conditions during operation.
- Genuine OEM Part — Supplied as a genuine Wacker Neuson replacement, part number 5000159644, ensuring the wiring meets the insulation rating and conductor specification of the original component.
- Electrical Safety Compliance — Correct harness routing and connector integrity are critical in generator applications; using the OEM harness maintains the isolation and grounding characteristics of the original electrical system.
The coolant sensor wiring harness carries the low-voltage signal from the coolant temperature sensor to the generator's monitoring and control system. This signal allows the machine to track engine operating temperature in real time, triggering warnings or automatic shutdown if the engine begins to overheat. When the harness is damaged, corroded, or has a broken connector, the control system loses visibility of coolant temperature — which can result in missed overheat events, nuisance fault codes, or a generator that fails to protect itself from thermal damage. Replacing a faulty harness with the correct OEM unit restores accurate monitoring and keeps the engine protection system fully functional.
Part Details
| Part Number | 5000159644 |
|---|---|
| Old Part Number | 0159644 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Coolant Sensor Wiring Harness |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Mobile Generator, Skid Mounted | G25 | 5000009462, 5000009476 |
| Mobile Generator, Skid Mounted | G50 | 5000009463, 5000009477 |
| Mobile Generator, Skid Mounted | G70 | 5000009464, 5000009478 |
| Mobile Generator, Skid Mounted | G85 | 5000009465 |
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.
