The Wacker Neuson Control Box is a genuine OEM component designed for the HDR 45, HD 50, HD 70, HI 35, HI 90, HI 90HD, HI 120, and HI 120HD indirect-fired air heaters and dryers. As a direct factory replacement, this control box restores correct electrical operation and ensures the heater unit cycles and responds exactly as intended. Sourced directly from Wacker Neuson, the meets all original build specifications for this equipment family. If your heater is failing to ignite, running erratically, or not responding to controls, this is the part to reach for.
Key Features
- Correct Electrical Specification: — Built to OEM output and switching specifications, ensuring proper ignition sequencing and burner control across all compatible units.
- Drop-In Replacement: — Designed to mount and wire directly into the existing control cavity on all listed HDR and HI series machines without rework.
- Broad Heater Compatibility: — Fits the HDR 45, HD 50, HD 70, HI 35, HI 90, HI 90HD, HI 120, and HI 120HD, making it a single-part solution across multiple models in the Wacker Neuson indirect heater lineup.
- Restores Full Burner Control: — A functioning control box governs ignition, fuel delivery timing, and safety shutoff; a failed unit can cause no-start conditions, uncontrolled cycling, or complete heater lockout.
- Safety-Critical Electrical Component: — The control box manages burner ignition and safety shutoff logic; using a correctly rated OEM unit is essential for safe heater operation on enclosed or occupied job sites.
- Genuine OEM Part: — Carries the Wacker Neuson part number 5200023837 and is sourced through authorized supply channels, confirming authenticity and part number accuracy before the unit ships.
The control box is the electronic brain of an indirect-fired air heater — it manages the ignition sequence, monitors burner operation, and triggers safety shutoffs if the unit detects a fault. Without a properly functioning control box, the heater cannot complete a successful ignition cycle and will fail to produce heat or will shut down unexpectedly. When the control box fails, symptoms typically include a heater that won't ignite, one that locks out repeatedly, or one that runs inconsistently; replacing it with the correct OEM unit is the most direct path to restoring dependable heat output on site.
Part Details
| Part Number | 5200023837 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Control Box |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 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.
