The Wacker Neuson Pressure Switch is a genuine OEM component designed for the HI110D, HI200D, and HI300D series diesel indirect air heaters. Sourced directly from Wacker Neuson, this OEM part is manufactured to the same specification as the original, ensuring a direct, bolt-in installation with no guesswork. Compatible across multiple HI-series configurations including the HI110HD D, HI200HD D, and HI300HD D models, this switch covers a wide range of the Wacker Neuson indirect heater lineup. When your heater needs to get back online in cold-weather conditions, using the correct OEM pressure switch is the straightforward, dependable choice.
Key Features
- OEM-Calibrated Switching Thresholds — Manufactured to Wacker Neuson's original pressure activation specs, ensuring the switch opens and closes at the correct points in the combustion air circuit.
- Direct Plug-In Replacement — Matches the original connector, port thread, and mounting configuration for a straightforward swap on compatible HI-series heaters.
- Broad HI-Series Compatibility — Fits HI110D, HI110HD D, HI200D, HI200HD D, HI300D, and HI300HD D diesel indirect air heaters in a single part number.
- Protects Heater Operation in Extreme Cold — A correctly functioning pressure switch ensures the burner fires and sustains heat output; a failed switch can prevent ignition entirely or cause unsafe operation in sub-zero conditions.
- Fuel System Safety Component — The pressure switch plays a direct role in the heater's burner control circuit; using a correctly rated OEM part helps maintain safe, code-compliant operation on the jobsite.
A pressure switch in a diesel indirect air heater monitors airflow or fuel pressure within the combustion circuit and signals the control board when conditions are safe to initiate or sustain burner operation. If pressure drops below the required threshold — due to a blocked air path, pump issue, or a failed switch itself — the switch opens the circuit and shuts the burner down as a protective measure. When the switch fails or reads incorrectly, the heater may refuse to start, shut off unexpectedly, or fail to maintain consistent heat output, leaving crews without heat in demanding cold-weather applications.
Part Details
| Part Number | 5000186764 |
|---|---|
| Old Part Number | 0186764 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pressure Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 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 |
| HI 200 D Indirect Air Heater | HI200D | 5000620865, 5200011877 |
| HI 200HD D Indirect Air Heater | HI200HDD | 5000620916, 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.
