The Wacker Neuson Control Box is a genuine OEM component designed for the HI 120 indirect-fired air heater. As a direct factory replacement, this part carries the same specifications as the original unit installed at the factory, ensuring a seamless swap with no guesswork on fitment or compatibility. If your HI 120 is showing erratic heating behavior, failing to ignite, or not responding to temperature inputs, the Control Box is a primary diagnostic focus and a common service item on this machine.
Key Features
- Genuine OEM Electrical Integrity — Manufactured to the same circuit and output specifications as the original, so your HI 120 responds to controls exactly as intended.
- Direct-Fit Replacement — Matches the original mounting configuration and wiring connections on the HI 120, allowing for a straightforward swap during service.
- HI 120 Fitment Confirmed — Sourced specifically for the HI 120 indirect-fired air heater; verify your machine number against 5200019342 before ordering.
- Restores Full Heater Operation — A functioning Control Box ensures proper ignition sequencing, burner regulation, and temperature management — all critical for consistent heat output on the jobsite.
- Fuel System Safety Compliance — As the nerve center of the heater's ignition and burner control, using a correct OEM replacement helps maintain the safety interlocks and operational limits built into the HI 120 design.
The Control Box is the central electrical brain of the HI 120 indirect-fired air heater, managing ignition sequencing, burner operation, and temperature regulation. It receives inputs from the thermostat and sensors, then signals the fuel system and blower to deliver consistent, controlled heat output. When the Control Box fails or becomes damaged, the heater may refuse to ignite, cycle erratically, or shut down unexpectedly — making prompt replacement essential for maintaining reliable operation in cold-weather or temporary heating applications.
Part Details
| Part Number | 5200025105 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Control Box |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 120 | HI120 | 5200019342 |
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.
