The Wacker Neuson Thermostat is a genuine OEM component designed for the PT6Y and PT6YT series self-priming centrifugal trash pumps. As a factory-sourced part, the meets the original engineering specifications for engine cooling system performance across the PT6Y and PT6YT model range. This includes PT6Y EPA T4 and PT6YT-IN variants, making it a broad-coverage replacement for the full PT6Y family. Sourcing the correct OEM thermostat ensures the engine cooling circuit operates within its designed temperature range, protecting the pump's engine from overheating during demanding jobsite use.
Key Features
- Genuine OEM Temperature Calibration — Factory-set opening temperature matches the original spec, ensuring the cooling circuit cycles correctly under load rather than opening too early or too late.
- Drop-In Engine Cooling Fit — Engineered to seat directly into the OEM thermostat housing on PT6Y and PT6YT pumps with no reworking of the cooling circuit or housing required.
- Broad PT6Y Family Coverage — Compatible across multiple PT6Y and PT6YT variants including EPA T4 and PT6YT-IN configurations, consolidating replacement needs across the full series.
- Engine Protection Under Continuous Operation — A correctly functioning thermostat keeps the engine in its optimal temperature window during extended pumping cycles; a failed or stuck thermostat can lead to overheating or overcooling, both of which accelerate engine wear.
- Fuel Efficiency Maintained — When the engine reaches operating temperature efficiently, combustion stays consistent and fuel consumption remains within expected range — a worn thermostat stuck open can cause the engine to run cold and burn more fuel.
The thermostat is a valve in the engine's cooling system that controls the flow of coolant between the engine block and the radiator. When the engine is cold, the thermostat remains closed, allowing coolant to circulate only within the engine to bring it up to operating temperature quickly. Once the target temperature is reached, the thermostat opens and routes coolant through the radiator to shed excess heat. If the thermostat fails — whether stuck open or closed — the engine either runs chronically cold and inefficiently, or overheats and risks serious internal damage. Replacing a faulty thermostat is one of the most cost-effective ways to restore proper engine cooling system function.
Part Details
| Part Number | 1000148389 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Thermostat |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PUMP PT6Y-AU | PT6Y-AU | 5100076956 |
| PT6YT | PT6YT-IN | 5100077923 |
| PT6Y | PT6Y-SA | 5100070835 |
| PT6YT | PT6YT | 5100070966 |
| PT6Y | PT6Y | 5100064168, 5100069617 |
| PT6Y | PT6Y EPA T4 | 5100073464 |
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.
