The Wacker Neuson Duct Adapter is a genuine OEM component designed for the HI 300HD D, HI 90, and HI 90HD indirect-fired air heaters. As a factory-sourced part, it is manufactured to the same specifications as the original, ensuring a proper connection within the heater's ducting system. This adapter is confirmed compatible across the HI 90, HI 90HD, and HI 300HD D heater series, making it the correct replacement choice when the original fitting becomes damaged or worn.
Key Features
- Genuine OEM Fit and Finish — Manufactured by Wacker Neuson to original design tolerances, ensuring the adapter seats and seals correctly within the duct assembly without gaps or airflow loss.
- Direct Drop-In Replacement — Matches the original mounting geometry and connection profile, allowing straightforward installation into the existing duct configuration.
- Confirmed Multi-Model Compatibility — Fits the HI 90, HI 90HD, and HI 300HD D indirect air heater series, covering a range of diesel-powered heating units in the Wacker Neuson lineup.
- Maintains Heated Airflow Efficiency — A correctly fitted duct adapter keeps warm air directed through the intended output path; a cracked or poorly fitted adapter allows heat to escape, reducing the heater's effective output.
- Fuel-System Adjacent Safety — On indirect-fired heaters, duct integrity matters for safe combustion air management; using a genuine OEM adapter helps maintain the designed airflow balance around the burner assembly.
A duct adapter on an indirect-fired air heater connects sections of the output ducting, directing heated air from the heat exchanger toward the discharge point or an attached duct run. It plays a key role in maintaining consistent airflow volume and heat delivery to the target area. When this fitting cracks, distorts, or is lost, warm air can escape before reaching its destination, reducing heating efficiency and potentially causing the unit to cycle incorrectly due to disrupted airflow.
Part Details
| Part Number | 5200011946 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Duct Adapter |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 300HD D Indirect Air Heater, Diesel | HI300HDD | 5000620867 |
| 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.
