The Wacker Neuson Transformer is a genuine OEM component designed for the HI-series indirect air heaters and HDR 155 radiant heater. This transformer serves the electrical control circuit across multiple diesel-powered heater models, including the HI 110D, HI 110HD D, HI 200D, HI 200HD D, HI 300D, HI 300HD D, HI 400HD D, and the HDR 155 Direct Fired Radiant Heater. As a factory-sourced part, the meets the original design specifications Wacker Neuson built into these heater units. Ordering by the correct part number ensures you receive the exact transformer your heater's control system requires.
Key Features
- Correct Output Voltage Spec — Genuine OEM construction ensures this transformer delivers the precise voltage and current ratings the HI-series and HDR 155 control circuits require for consistent ignition and burner operation.
- Direct Drop-In Replacement — Engineered to the original mounting configuration and wiring connection points, allowing straightforward installation without adapting terminals or brackets.
- Broad HI-Series Compatibility — Confirmed fitment across the HI 110D, HI 110HD D, HI 200D, HI 200HD D, HI 300D, HI 300HD D, HI 400HD D, and HDR 155 Direct Fired Radiant Heater families.
- Sustained Heating Output — A properly functioning transformer maintains stable ignition signal and burner control; a failed unit can result in no-start conditions or unreliable heat output on the jobsite.
- Electrical Safety Compliance — As a key component in the heater's high-voltage ignition circuit, using the correct OEM-spec transformer is essential for safe, code-compliant operation of fuel-burning equipment.
A transformer in a diesel indirect air heater steps up the supply voltage to generate the high-voltage spark needed to ignite the burner at startup. It also isolates the ignition circuit from the low-voltage control side of the unit, protecting sensors and control boards from electrical interference. When the transformer fails, the burner will not ignite — resulting in a complete loss of heat output — making it one of the first components to inspect during a no-heat diagnostic.
Part Details
| Part Number | 5000183968 |
|---|---|
| Old Part Number | 0183968 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Transformer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 300HD D Indirect Air Heater, Diesel | HI300HDD | 5000620867 |
| HI 400HD D Indirect Air Heater | HI400HDD | 5000620868 |
| HI 110HD D Indirect Air Heater, Diesel | HI110HD D | 5000620864 |
| HI 300D, HEATER-INDIRECT, DIESEL, -20° | HI300D | 5000620866 |
| HI 110D, HEATER-INDIRECT, DIESEL, -20° | HI110D | 5000620915 |
| 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 |
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.
