The Wacker Neuson Blast Tube is a genuine OEM component designed for the HI 300HD D, HI 300D, HI 90, and HI 90HD indirect-fired air heaters. As a direct factory replacement, it restores correct combustion airflow and heat output to your unit without guesswork. This part is sourced from Wacker Neuson and meets all original design specifications for these diesel indirect heater models. Whether you're servicing a HI 90 on a smaller project or maintaining a high-output HI 300HD D on a large cold-weather pour, the ensures your heater fires and performs as intended.
Key Features
- Genuine OEM Combustion Integrity — Manufactured to Wacker Neuson's original tolerances, ensuring the blast tube channels combustion air at the correct velocity and direction for clean, efficient ignition.
- Drop-In Replacement — Matches the original mounting configuration and dimensions of the factory blast tube, making installation straightforward on all four compatible heater models.
- Broad HI Series Compatibility — Fits the HI 90, HI 90HD, HI 300D, and HI 300HD D diesel indirect-fired air heaters, covering both standard and heavy-duty variants in the HI lineup.
- Sustained Heat Output — A correctly fitted blast tube maintains the precise air-fuel mix geometry the burner needs; a damaged or deteriorated tube causes incomplete combustion, misfires, and reduced heat delivery.
- Cold-Weather Reliability — Indirect heaters are workhorses in sub-zero site conditions; replacing a worn blast tube before the heating season keeps burner operation consistent when temperatures and job deadlines leave no margin for error.
The blast tube is the channel through which combustion air is directed from the burner assembly into the heat exchanger of an indirect-fired air heater. It positions the flame correctly within the combustion chamber, ensuring complete fuel burn and efficient heat transfer to the outgoing clean airstream. When the blast tube cracks, warps, or deteriorates, the flame pattern becomes erratic — leading to incomplete combustion, sooting, unreliable ignition, and a significant drop in heating efficiency that can leave a worksite dangerously cold.
Part Details
| Part Number | 5000186767 |
|---|---|
| Old Part Number | 0186767 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Blast Tube |
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.
