The Wacker Neuson Relay is a genuine OEM component designed for HSH-series and E-series hydronic surface heaters, including the HSH700, HSH650, HSH350, HP252, E2200, and E700M models. As a direct OEM replacement, this relay is manufactured to the same specifications as the original part, ensuring correct electrical switching behavior within the heater's control system. Sourced directly through authorized Wacker Neuson parts channels, the is the correct part for maintaining peak performance across these heater families.
Key Features
- Correct Switching Specification — Manufactured to OEM-rated coil voltage and contact load ratings, ensuring the relay energizes and de-energizes exactly as the heater's control circuit demands.
- Drop-In Electrical Fit — Matches the original connector footprint and terminal layout, allowing direct installation without re-pinning or wiring modifications.
- Broad HSH and E-Series Compatibility — Confirmed fitment across the HSH700, HSH650, HSH350, HP252, E2200, and E700M hydronic surface heaters, covering a wide range of Wacker Neuson ground heating applications.
- Protects Heating System Operation — A correctly functioning relay ensures burner ignition sequences, pump cycling, and safety shutoffs operate on schedule; a failed relay can cause the heater to fail to start or run uncontrolled.
- Electrical Safety Compliance — As a switching component within a fuel-burning heating system, using a genuine OEM relay maintains the integrity of the original safety interlock and control circuit design.
A relay is an electrically operated switch that allows a low-current control signal to open or close a higher-current circuit within the machine. In a hydronic surface heater, the relay is a critical link in the control board's command chain — directing power to components such as the burner, circulation pump, and safety shutoff circuits at precisely the right moments in the heating cycle. When a relay fails, the heater may refuse to start, shut down unexpectedly, or lose control of one or more operating functions, making prompt replacement essential to restoring full, safe operation.
Part Details
| Part Number | 5000173163 |
|---|---|
| Old Part Number | 0173163 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Relay |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HSH700 | HSH700G | 5000620243 |
| Hydronic Surface Heater | HSH350 | 5000620254, 5200001677 |
| HP252 | HP252 | 5000620249 |
| E2200 GROUND HEATER, W/ LIFT BAIL | E2200 | 5000620215 |
| HSH650 | HSH650 | 5000620991 |
| Hydronic Surface Heater, 700m hose | E700M | 5000620195 |
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.
