The Wacker Neuson Toggle Switch is a genuine OEM component designed for the HSH series hydronic surface heaters, including the HSH700, HSH350, HSH650, E700M, and HP252 models. As a direct OEM replacement, this switch is sourced and validated to meet Wacker Neuson's original design specifications — giving you confidence that it will seat, connect, and operate exactly as the factory-installed unit did. Whether you're servicing a rental fleet or keeping a single heater running through a cold-weather pour, having the correct switch on hand keeps your surface heating system fully operational.
Key Features
- Certified OEM Electrical Specification — Manufactured to the original switching capacity and contact rating, ensuring correct circuit behavior in the HSH control system.
- Drop-In Connector Match — Designed to match the original wiring harness connector and panel cutout, so installation swaps directly without modification to the harness or housing.
- Broad HSH Series Coverage — Fits HSH700, HSH350, HSH650, E700M (700m hose configuration), and HP252 hydronic surface heaters across multiple production runs.
- Restore Full Operator Control — A failed or intermittent toggle switch can leave operators unable to power the heater on or off reliably; replacing it restores predictable, single-action control of the heating circuit.
- Electrical Safety Compliance — Using the correct OEM-rated switch matters on fuel-fired heating equipment — an undersized or incompatible switch can arc, overheat, or fail to interrupt the circuit safely under load.
The toggle switch on a hydronic surface heater serves as the primary operator control for switching the heating circuit on and off. It carries the electrical load required to activate the heater's burner or pump circuit, and its rated switching capacity must match the demands of the system. When the switch wears, develops a loose contact, or fails entirely, the heater may not start, may start intermittently, or — in a worst case — may not shut down as expected. Replacing it with the correct OEM part restores safe, dependable on/off control and protects the downstream electrical components it governs.
Part Details
| Part Number | 5000172039 |
|---|---|
| Old Part Number | 0172039 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Toggle Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HSH700 | HSH700G | 5000620243 |
| Hydronic Surface Heater | HSH350 | 5000620254, 5200001677 |
| HP252 | HP252 | 5000620249 |
| 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.
