The Wacker Neuson Combustion Chamber is a genuine OEM component designed for the HI 400HD D, HI 120, and HI 120HD indirect-fired air heaters. As a direct factory replacement, it restores proper burner function and heat output to specification. This part is confirmed compatible with the HI 400HD D, HI 120, and HI 120HD heater models, making it the correct choice when servicing units in any of these series.
Key Features
- Genuine OEM Combustion Integrity — Manufactured to Wacker Neuson's original design tolerances, ensuring the combustion chamber maintains correct fuel-air mixture containment and burner geometry for consistent heat output.
- Direct Drop-In Replacement — Engineered to match the original mounting points and burner assembly interface, allowing straightforward installation without fabrication or modification.
- Confirmed Fitment Across HI Series Heaters — Compatible with the HI 400HD D, HI 120, and HI 120HD indirect-fired air heaters, covering a range of heating capacities within the HI product family.
- Restores Full Heating Performance — A damaged or cracked combustion chamber causes incomplete combustion, uneven heat distribution, and potential heater shutdown; replacing it with this OEM part brings the unit back to full operating capacity.
- Fuel System Safety — The combustion chamber contains the burner flame and combustion gases within the heater's heat exchanger, making structural integrity critical to safe operation in enclosed or semi-enclosed worksites.
The combustion chamber is the core component of an indirect-fired air heater's burner assembly. It houses the fuel ignition and combustion process, containing the flame and hot gases so that heat can be transferred to outgoing air without introducing combustion byproducts into the heated space — which is what makes indirect-fired heaters safe for use in occupied work areas. When the combustion chamber cracks, warps, or burns through, the heater loses efficiency, may fail to ignite reliably, or can allow exhaust gases to contaminate the airstream, making prompt replacement essential for both performance and safety.
Part Details
| Part Number | 5000183891 |
|---|---|
| Old Part Number | 0183891 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Combustion Chamber |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 400HD D Indirect Air Heater | HI400HDD | 5000620868 |
| 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.
