The Wacker Neuson Switch (212°F) is a genuine OEM temperature switch designed for the HI750 and HI900 series indirect-fired air heaters. This switch is a direct factory replacement, covering diesel, natural gas, propane, and DGM variants across both the HI750 and HI900 families — including skid-mounted and surge-brake configurations. As a genuine OEM component, the is manufactured to the exact electrical and thermal specifications required by these heaters, ensuring proper temperature-triggered response every time. Confirm your model number against the fitment list before ordering to make sure this switch is the correct match for your unit.
Key Features
- Calibrated Trip Point: — Rated to actuate at 212°F, this switch triggers at a precise thermal threshold — critical for protecting the heat exchanger and maintaining safe operating temperatures.
- Genuine OEM Component: — Sourced directly from Wacker Neuson, this part meets the exact electrical rating and contact construction specified for the HI750 and HI900 heater platforms.
- Broad HI-Series Coverage: — Fits a wide range of HI750 and HI900 configurations including diesel, natural gas, LP, DGM, skid-mounted, and surge-brake models.
- Drop-In Replacement: — Matches the original mounting location and wiring interface, allowing straightforward installation without adapters or modifications to the heater's control circuit.
- Safety-Critical Electrical Component: — A failed or out-of-spec temperature switch can prevent proper heater shutdown during overtemperature conditions, creating a risk of heat exchanger damage or unsafe heater operation. Using the correct OEM-spec switch matters.
A temperature switch is a safety-control device that monitors heat levels within the air heater and signals the control system to shut down or limit output when a set temperature threshold — in this case, 212°F — is reached. In indirect-fired air heaters like the HI750 and HI900 series, this switch plays a direct role in protecting the heat exchanger and connected ducting from overtemperature damage. When the switch fails or drifts out of calibration, the heater may shut down prematurely, fail to shut down when it should, or trigger fault codes — all of which interrupt heating output on the jobsite.
Part Details
| Part Number | 5000181860 |
|---|---|
| Old Part Number | 0181860 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Switch (212°F) |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 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 |
| HI900 Heater-DGM,Srg,-40 | HI900DGM | 5200014221, 5200014222, 5200014165, 5200014166 |
| HI 900D Heater-Indirect | HI900D | 5200014158, 5200014159, 5200014160 |
| Skid Indirect Air Heaters Natu ral Gas | HI900G | 5200014161 |
| HI 900G Heater-Indirect,3x16 | HI900 G | 5200014163, 5200014164 |
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.
