The Wacker Neuson Wire (Red, Safety Thermostat Hi 400) is a genuine OEM component designed for the HI 400HD G Indirect Air Heater. Sourced directly from Wacker Neuson, this wire is manufactured to the exact electrical specifications required for the safety thermostat circuit, ensuring it integrates correctly with the heater's high-limit protection system. If you're restoring your HI 400HD G to full working order, using the correct OEM wire matters — improper substitutions in safety-critical circuits can compromise the reliability of the thermostat's response.
Key Features
- OEM-Spec Electrical Rating — Manufactured to Wacker Neuson's exact wire gauge, insulation grade, and temperature resistance required for the safety thermostat circuit in the Hi 400 series.
- Direct Connector Match — Designed as a drop-in replacement that connects to the existing thermostat terminals on the HI 400HD G without modification to the wiring harness.
- Confirmed Fitment — Verified for the HI 400HD G Indirect Air Heater (model HI400HD G).
- Safety Circuit Integrity — The safety thermostat circuit depends on a correctly rated wire to shut down the heater if overheating is detected; a degraded or incorrect wire can prevent the thermostat from functioning as intended.
- Genuine Wacker Neuson Part — Backed by Wacker Neuson's OEM supply chain, so you receive the same component installed at the factory — not an approximation.
The safety thermostat wire connects the high-limit thermostat to the heater's control circuit, carrying the signal that cuts power to the burner if internal temperatures exceed a safe threshold. In an indirect air heater like the HI 400HD G, this is a critical shutdown path — if the wire is damaged, corroded, or of incorrect specification, the thermostat may fail to trigger, allowing the unit to run beyond safe operating limits. Replacing a worn or faulty wire with the correct OEM part restores the full integrity of the heater's overheat protection.
Part Details
| Part Number | 5100050030 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Wire (Red, Safety Thermostat Hi 400) |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 400HD G Indirect Air Heater | HI400HD G | 5000620701 |
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.
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