The Wacker Neuson Air Intake is a genuine OEM component designed for the HI400HD G, HI400HD D, and HI120HD indirect air heaters. As a direct OEM replacement, it is manufactured to the same specifications as the original part, ensuring a correct fit within the heater's combustion air system. This part is confirmed compatible across the HI400HD and HI120HD series, making it a straightforward service item for fleet operators and rental companies running Wacker Neuson climate equipment.
Key Features
- Genuine OEM Airflow Integrity — Manufactured to the exact inlet geometry and material spec of the original, ensuring correct air volume delivery to the burner assembly.
- Direct Drop-In Replacement — Matches the original mounting configuration on the HI400HD G, HI400HD D, and HI120HD, so installation follows standard service procedure without adaptation.
- Broad HI-Series Compatibility — Covers both the gas and diesel variants of the HI400HD alongside the HI120HD, reducing the number of SKUs needed for mixed fleets.
- Combustion Performance — A correctly functioning air intake delivers a consistent, clean air supply to the burner; a cracked, blocked, or deteriorated intake disrupts the air-fuel ratio and leads to incomplete combustion or heater lockout.
- Fuel System Safety Relevance — The air intake is part of the heater's combustion circuit; using a correctly dimensioned OEM replacement supports safe burner operation and helps avoid nuisance shutdowns caused by restricted airflow.
The air intake on an indirect-fired heater channels outside air into the burner assembly, where it mixes with fuel to sustain controlled combustion. Because the heat exchanger keeps combustion gases separated from the output airstream, maintaining proper airflow through the intake is critical — any restriction or air leak at this point can starve the burner, trigger safety lockouts, or cause inconsistent heat output. Over time, the intake can crack, warp from heat cycling, or suffer physical damage on the jobsite, making it a routine replacement item during heater servicing.
Part Details
| Part Number | 5000183906 |
|---|---|
| Old Part Number | 0183906 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Air Intake |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 400HD G Indirect Air Heater | HI400HD G | 5000620701 |
| 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.
