The Wacker Neuson Tube is a genuine OEM component designed for the HI series indirect-fired diesel air heaters, including the HI 90, HI 90HD, HI 120, HI 120HD, HI 300D, HI 300HD D, and HI 400HD D models. As a factory-sourced part, the is manufactured to the exact specifications Wacker Neuson requires for proper combustion airflow and heat transfer within these units. Ordering direct with the verified part number ensures you receive the correct tube geometry and material grade for a drop-in fit. Keep your heating equipment running at full output through cold-weather jobsite demands with the right OEM replacement.
Key Features
- Genuine OEM Material Integrity — Manufactured from materials rated for the sustained heat and combustion environment inside an indirect-fired diesel heater, maintaining structural integrity under continuous high-temperature operation.
- Direct-Fit Replacement — Matches the original tube dimensions and connection points, allowing straightforward installation without modification to surrounding heater components.
- Broad HI Series Compatibility — Confirmed fitment across the HI 90, HI 90HD, HI 120, HI 120HD, HI 300D, HI 300HD D, and HI 400HD D indirect air heater lineup.
- Sustained Heat Output — A correctly functioning tube maintains proper airflow and combustion gas routing, supporting consistent BTU output; a cracked or degraded tube can result in heat loss, incomplete combustion, or unplanned shutdowns.
- Combustion Safety Relevance — In indirect-fired heaters, tube integrity is critical to keeping combustion gases separated from the supply air stream, making this a safety-relevant component that should always be replaced with a genuine OEM part.
In an indirect-fired air heater, the tube routes combustion gases from the burner through a sealed heat exchanger, allowing heat to transfer into the supply airstream without the two ever mixing. This design is what makes indirect heaters safe for use in enclosed spaces — the clean, heated air delivered to the work area never contacts exhaust gases. When the tube cracks, corrodes, or fails, combustion gas can contaminate the heated airflow, creating a safety hazard and reducing heating efficiency. Replacing a worn tube promptly with the correct OEM part restores the sealed combustion path the heater was designed around.
Part Details
| Part Number | 5000183935 |
|---|---|
| Old Part Number | 0183935 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Tube |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 300HD D Indirect Air Heater, Diesel | HI300HDD | 5000620867 |
| HI 400HD D Indirect Air Heater | HI400HDD | 5000620868 |
| HI 300D, HEATER-INDIRECT, DIESEL, -20° | HI300D | 5000620866 |
| HI 90 | HI90 | 5200019340 |
| HI 90HD | HI90HD | 5200019341 |
| 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.
