The Wacker Neuson Emergency Stop Switch is a genuine OEM safety component designed for the HSH350, HSH650, HSH700G, HI750, HI900, E2200, E5000, E700M, HP252, and CH5000 series hydronic surface heaters, indirect-fired air heaters, and ground heaters. As a direct OEM replacement, this switch is manufactured to the exact specifications required by Wacker Neuson for these heating systems, ensuring correct fitment and proper operation from the moment it is installed. The covers an exceptionally wide range of configurations across the HSH, HI750, and HI900 families — including gas, diesel, natural gas, LP, and diesel-generator variants — making it the correct choice whether you are servicing a skid-mounted indirect air heater or a hydronic surface heating unit. Verify your machine's model number against the fitment list before ordering to confirm compatibility.
Key Features
- Genuine OEM Electrical Specification — Sourced directly from Wacker Neuson, this switch meets the exact actuation force, contact rating, and circuit interruption spec required by the original heater design.
- Direct-Swap Installation — Replaces the original switch position-for-position with the same mounting footprint and wiring interface, so no adaptation or reworking of the control circuit is needed.
- Broad Heater Family Coverage — A single part number serves HSH350, HSH650, HSH700G, HI750 (gas, diesel, DGM, and HD variants), HI900 (gas, diesel, DGM, and surge-brake variants), E2200, E5000, E700M, HP252, and CH5000 units.
- Critical Safety Circuit Integrity — The emergency stop switch is the primary means of immediately cutting power or fuel flow in an emergency; a worn, sticky, or failed switch compromises the operator's ability to shut down the heater safely and quickly.
- Correct for Gas, Diesel, and Generator-Equipped Variants — Validated across natural gas, LP, diesel, and onboard-generator heater configurations, so you can order with confidence regardless of fuel type.
The emergency stop switch is a normally-closed or latching safety control that, when actuated, immediately interrupts the heater's operating circuit — cutting the burner, fuel supply, or electrical power depending on the system design. On portable and skid-mounted heating equipment like the HI and HSH series, this switch is the operator's first line of defense in the event of a runaway condition, gas leak, or other on-site emergency. A switch that fails to actuate cleanly, sticks in the open position, or develops intermittent contact can prevent the machine from starting normally or, more critically, prevent a proper emergency shutdown — both of which create serious safety and operational risks on a heated worksite.
Part Details
| Part Number | 5000172078 |
|---|---|
| Old Part Number | 0172078 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Emergency Stop Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HSH700 | HSH700G | 5000620243 |
| E5000 GROUND HEATER, W/GAS BURNER | E5000 | 5000620898, 5000620897, 5000620899 |
| Hydronic Surface Heater | HSH350 | 5000620254, 5200001677 |
| HP252 | HP252 | 5000620249 |
| E2200 GROUND HEATER, W/ LIFT BAIL | E2200 | 5000620215 |
| HSH650 | HSH650 | 5000620991 |
| 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 |
| Hydronic Surface Heater, 700m hose | E700M | 5000620195 |
| Cross Heater with oil burner | CH5000 | 5000620240, 5000620242 |
| 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.
