The Wacker Neuson Air Intake is a genuine OEM component designed for the HI 300HD D, HI 300D, HI 90, and HI 90HD indirect-fired diesel air heaters. As a direct factory replacement, it ensures the correct airflow path into the combustion system is restored to original specification. This part is confirmed to fit models HI300HDD, HI300D, HI90, and HI90HD — always verify your model number before ordering to ensure compatibility.
Key Features
- Genuine OEM Combustion Airflow Integrity — Sourced directly from Wacker Neuson, this air intake is manufactured to the exact dimensional and material tolerances required to maintain proper combustion air delivery in diesel indirect-fired heaters.
- Direct-Fit Replacement — Designed to mount in the same position and connect to the same ducting interfaces as the original, making swap-out straightforward on supported heater models.
- Broad HI-Series Compatibility — Fits HI 300HD D, HI 300D, HI 90, and HI 90HD indirect air heaters, covering both standard and heavy-duty diesel variants across the HI product family.
- Protects Burner Performance — A damaged or obstructed air intake starves the burner of the oxygen it needs for clean, efficient combustion. Replacing it restores proper heat output and fuel efficiency.
- Fuel System Safety Relevance — On diesel indirect heaters, correctly metered combustion air is critical for safe, complete fuel burn. Using a genuine OEM air intake helps ensure the heater operates within its designed combustion parameters.
The air intake on an indirect-fired diesel heater channels the precise volume of outside air into the combustion chamber where it mixes with fuel to sustain a clean, controlled burn. Because the heat exchanger keeps combustion gases separate from the output airstream, proper air intake function is essential not only for heating efficiency but for safe operation — a restricted or cracked intake can cause incomplete combustion, sooting, and reduced heat output. Replacing a worn or damaged air intake restores the correct air-to-fuel ratio and keeps the heater running at its rated capacity.
Part Details
| Part Number | 5000186747 |
|---|---|
| Old Part Number | 0186747 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Air Intake |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 300HD D Indirect Air Heater, Diesel | HI300HDD | 5000620867 |
| HI 300D, HEATER-INDIRECT, DIESEL, -20° | HI300D | 5000620866 |
| HI 90 | HI90 | 5200019340 |
| HI 90HD | HI90HD | 5200019341 |
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.
