The Wacker Neuson Thermostat is a genuine OEM thermostat designed for the HI-series indirect-fired air heaters, including the HI770XHD, HI750, HI300, HI200, and HI110 model families. Sourced directly from Wacker Neuson, this OEM component meets the original design and performance specifications for your machine. The fits a wide range of diesel and gas-powered indirect heater configurations across the Arctic Bear XHD, HI750GM, HI750D, HI750G, HI300HDD, HI300D, HI200D, HI200HDD, HI110HD D, and HI110D series. When your indirect air heater is struggling to maintain output temperature or cycling erratically, replacing the thermostat with a verified OEM part is the correct first step.
Key Features
- OEM Temperature Calibration: — Factory-calibrated switching point ensures the burner cycles at the correct temperature threshold, maintaining consistent heat output across your heater's operating range.
- Drop-In Fitment: — Matches the original mounting configuration and connection points for straightforward installation without the need to modify the heater assembly.
- Broad HI-Series Compatibility: — Confirmed fit across HI770XHD, HI750 (diesel and gas variants), HI300, HI200, and HI110 indirect air heater families, including Arctic Bear XHD and GM configurations.
- Stable Burner Cycling: — A correctly functioning thermostat keeps the burner engaging and disengaging at the right intervals; a failed unit causes overheating, short-cycling, or complete heater shutdown in cold-weather operations.
- Fuel System Safety Relevance: — In indirect-fired heaters, an out-of-spec thermostat can allow excessive heat buildup near the heat exchanger and fuel circuit — replacing with a genuine OEM part maintains correct thermal cutoff behavior.
The thermostat in an indirect-fired air heater monitors the temperature of the heat exchanger and signals the burner to cycle on or off in order to maintain the target output temperature. It acts as the primary thermal control, preventing the unit from overheating while ensuring it delivers steady, usable heat to the space being conditioned. When the thermostat fails or drifts out of calibration, the heater may overshoot temperature limits, short-cycle without reaching full output, or shut down entirely — all of which compromise performance in demanding cold-weather jobsite conditions.
Part Details
| Part Number | 5000170388 |
|---|---|
| Old Part Number | 0170388 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Thermostat |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 770 XHD Indirect Air Heater, Diesel, 2x12 | Arctic Bear XHD | 5000620676 |
| HI 770 XHD Indirect Air Heater, Diesel, 1x16 | HI770XHD | 5000620183, 5200003814, 5200004934, 5100049894 |
| HI770XHD Indirect Heater | Arctic Bear XHD NS | 5000620690 |
| HI750 DGM HEATER-INDIRECT | HI750GM | 5000620859, 5000620930 |
| Mobile Indirect Fired Air Heat er, Diesel | HI750D | 5000620856, 5000620923, 5000620924 |
| HI 750GM HD-Mobile Indirect Ai r Heater-Surge, -40 | HI750GMHD | 5000620969 |
| HI750G HEATER-INDIRECT | HI750G | 5000620857, 5000620928, 5000620929 |
| Indirect Mobile Air Heater, Na tural Gas | Arctic Bear HD | 5000620199, 5000620197 |
| HI 300HD D Indirect Air Heater, Diesel | HI300HDD | 5000620867 |
| HI 110HD D Indirect Air Heater, Diesel | HI110HD D | 5000620864 |
| HI 300D, HEATER-INDIRECT, DIESEL, -20° | HI300D | 5000620866 |
| HI 110D, HEATER-INDIRECT, DIESEL, -20° | HI110D | 5000620915 |
| Accessories | Accessories | 5100024710 |
| HI 200D Indirect Air Heater | HI200D | 5200011877 |
| HI 200HD D Indirect Air Heater, Diesel | HI200HDD | 5200011878 |
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.
