The Wacker Neuson Oil Pressure Switch is a genuine OEM component designed for the E1250, E3000, E2200, HSH380, and HI1000 series hydronic surface heaters and indirect air heaters. As a direct OEM replacement, this switch is built to the exact electrical and pressure specifications required by Wacker Neuson heating equipment, ensuring the protection system operates as intended. It fits a broad range of configurations across the E1250S, E1250P, E3000, HSH380S, HSH380B, E2200, and HI1000 DGM series — covering LP/NG, diesel, and generator-equipped variants.
Key Features
- Calibrated Switch-Out Point — Engineered to the correct pressure threshold for Wacker Neuson heating systems, ensuring the protection circuit trips at exactly the right point — not too early, not too late.
- Genuine OEM Part — Sourced directly from Wacker Neuson, this switch carries the same part number (5000179839) and spec as the unit installed at the factory, with no substitution or adaptation needed.
- Broad Heater Family Coverage — A single part number covers E1250S, E1250P, E3000, E2200, HSH380S, HSH380B, and HI1000 DGM series machines across LP/NG, diesel, and generator configurations.
- Engine and Burner Protection — A functioning oil pressure switch is the first line of defense against low-oil damage; replacing a faulty switch restores automatic shutdown capability and keeps the heating unit running safely through demanding cold-weather jobs.
- Fuel and Configuration Agnostic — Fits propane, natural gas, and diesel variants within the supported heater families, making it a practical stocking part for fleets running mixed-fuel heating equipment.
The oil pressure switch monitors the lubrication pressure inside the engine or burner drive unit and sends a signal to the machine's control system when pressure drops below a safe operating threshold. When pressure falls too low, the switch triggers an automatic shutdown, preventing catastrophic engine damage from oil starvation. A worn or failed oil pressure switch can either allow the machine to run unprotected — risking serious internal damage — or cause nuisance shutdowns when pressure is actually adequate, both of which compromise productivity and equipment longevity.
Part Details
| Part Number | 5000179839 |
|---|---|
| Old Part Number | 0179839 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Oil Pressure Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E1250S | E1250S | 5200012355, 5200012354 |
| E3000 Ground Heater, 3kW Gen, TC | E3000 | 5100017807, 5100017809, 5100017806, 5100017808, 5100017810, 5100017811, 5100025046, 5100017801, 5100025045 |
| HSH380s | HSH 380S | 5100054643 |
| E 1250P Hydronic Heater, Premium, Diesel | E1250P | 5200012357, 5200012356 |
| HSH380S-Diesel, with Generator | HSH380S | 5200012371, 5200012370 |
| HI1000 Indirect Air Heater, DGM, Electric Break | HI1000DGM | 5200011234, 5200011235, 5100049275, 5100049276 |
| HSH380B-Diesel, without generator | HSH380B | 5200012359 |
| E2200 GROUND HEATER, 3kW GENERATOR | E2200 | 5100017448, 5100017449 |
| HI1000 | HI1000 | 5100049273 |
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.
