The Wacker Neuson Heater is a genuine OEM component designed for the HI 400HD D and HI 120HD indirect-fired air heaters. As a factory-sourced part, it matches the exact specifications of the original, ensuring the heating assembly performs as intended straight out of the box. This genuine OEM replacement is the trusted choice for contractors and site managers who depend on consistent, reliable heat output in demanding cold-weather conditions. Confirm your model number before ordering to ensure correct fitment with your HI series unit.
Key Features
- Genuine OEM Heat Output Spec — Sourced directly from Wacker Neuson, this heater matches the original combustion and heat-transfer rating of the HI series assembly — no guesswork on output capacity.
- Direct-Fit Replacement — Engineered to slot into the existing heater housing on compatible HI series units, aligning with original mounting points and fuel connections.
- Confirmed HI Series Fitment — Verified for the HI 400HD D and HI 120HD indirect-fired air heaters, covering two of the most widely used models in the HI lineup.
- Restore Full Heating Capacity — A worn or failed heater element leads to reduced BTU output, uneven heat distribution, or complete shutdown; replacing it with the correct OEM part brings the unit back to full operating capacity.
- Fuel System Integrity — Because this component is part of the fuel-fired heating circuit, using a correctly rated OEM heater helps maintain proper combustion control and reduces the risk of fuel-related operational issues.
The heater is the core heat-generating component in an indirect-fired air heater unit. It produces the thermal energy that is transferred to the airstream and distributed through ducting to warm enclosed workspaces, concrete curing areas, or cold-weather job environments — all without introducing combustion byproducts into the heated space. When the heater degrades or fails, heat output drops off or stops entirely, halting temperature-sensitive work; replacing it promptly with the correct OEM part restores the unit to its rated performance.
Part Details
| Part Number | 5000183981 |
|---|---|
| Old Part Number | 0183981 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Heater |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 400HD D Indirect Air Heater | HI400HDD | 5000620868 |
| 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.
