The Wacker Neuson Terminal Board is a genuine OEM electrical component designed for the HI-series indirect-fired air heaters and HDR-series direct-fired radiant heaters. As a direct factory replacement, this terminal board installs into the electrical control system exactly as the original, covering a wide range of models including the HI 200D, HI 300HD D, HI 400HD G, HI 90, HI 120, HI 120HD, HDR 115, and HDR 155, among others. Sourced directly from Wacker Neuson, part number carries the same specifications as the board installed at the factory. When your heater's electrical system needs attention, using the correct OEM terminal board ensures the unit returns to proper operating condition without guesswork.
Key Features
- OEM-Matched Electrical Spec — Manufactured to the exact terminal layout, conductor rating, and connection geometry of the original board, ensuring correct voltage distribution across the heater's control circuit.
- Drop-In Replacement — Mounts directly to the existing control housing bracket with original fastener positions, so installation follows the same procedure as the factory-fitted board.
- Broad HI and HDR Series Coverage — Fits HI 200D, HI 200HD D, HI 300HD D, HI 300HDD, HI 400HD G, HI 90, HI 90HD, HI 120, HI 120HD, HI 35, HDR 45, HDR 115, HDR 155, HD 50, HD 70, and the HI 35 — a single part number serving the full indirect and direct radiant heater lineup.
- Restored Ignition and Control Reliability — A faulty or corroded terminal board can cause intermittent ignition failures, erratic burner cycling, or a complete loss of heater function; replacing it restores consistent electrical communication between the control panel and the burner assembly.
- Electrical Safety Compliance — Correct terminal board specification is critical in a fuel-burning appliance; using the genuine OEM part maintains the designed circuit protection ratings and reduces the risk of miswiring or overload in the heater's control system.
The terminal board serves as the central wiring junction within the heater's electrical control system, routing power and signal connections between the control panel, ignition components, fuel system, and safety switches. In indirect-fired and direct-fired radiant heaters, this board must handle the demands of continuous-duty heating cycles in demanding outdoor and construction environments. When the terminal board degrades — through corrosion, heat stress, or physical damage — the result is often unreliable ignition, burner lockouts, or a heater that fails to start altogether, leaving a crew without heat when it matters most.
Part Details
| Part Number | 5000183963 |
|---|---|
| Old Part Number | 0183963 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Terminal Board |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 400HD G Indirect Air Heater | HI400HD G | 5000620701 |
| HI 300HD D Indirect Air Heater, Diesel | HI300HDD | 5000620867 |
| HI 400HD D Indirect Air Heater | HI400HDD | 5000620868 |
| HI 300D, HEATER-INDIRECT, DIESEL, -20° | HI300D | 5000620866 |
| HI 200 D Indirect Air Heater | HI200D | 5000620865, 5200011877 |
| HI 200HD D Indirect Air Heater | HI200HDD | 5000620916, 5200011878 |
| HDR 155 Direct Fired Radiant Heater | HDR155 | 5200007530 |
| HDR 115 Direct Fired Radiant Heater | HDR115 | 5100018592 |
| HDR 45 | HDR45 | 5200013800 |
| HD 50 | HD50 | 5200019335 |
| HD 70 | HD70 | 5200019336 |
| HI35 | HI35 | 5200019337 |
| HI 90 | HI90 | 5200019340 |
| HI 90HD | HI90HD | 5200019341 |
| HI 120 | HI120 | 5200019342 |
| HI 120HD | HI120HD | 5200019343 |
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.
