The Wacker Neuson Fan is a genuine OEM component designed for the HI750 and HI900 series indirect-fired air heaters. This fan services a wide range of configurations across both series, including diesel, natural gas, LP, and multi-fuel DGM variants, as well as standard skid-mounted and surge-brake equipped models. As a factory-sourced part, the carries the same specifications as the original unit installed at the time of manufacture. Whether you're servicing an HI750G, HI750D, HI900D, or HI900DGM, this is the correct replacement fan for restoring full heating performance.
Key Features
- Genuine OEM Airflow Specification — Sourced directly from Wacker Neuson, this fan is built to the exact blade pitch and rotational spec required to maintain proper combustion airflow and heat exchange in HI-series indirect heaters.
- Direct Drop-In Replacement — Engineered to match the original mounting interface and shaft dimensions, allowing straightforward installation without modification to the fan housing or drive assembly.
- Broad HI750 and HI900 Series Coverage — Confirmed fitment across diesel, natural gas, LP, DGM multi-fuel, skid-mounted, and surge-brake configurations in both the HI750 and HI900 product families.
- Sustained Heat Output — A correctly functioning fan ensures consistent combustion air supply and even heat distribution through the heat exchanger; a worn or failed fan causes incomplete combustion, overheating, or total heater shutdown.
- Fuel System Safety Relevance — Proper fan operation is critical in indirect-fired heaters where combustion airflow directly affects burner function; using a correctly rated OEM fan supports safe, code-compliant heater operation on the worksite.
In an indirect-fired air heater, the fan draws in combustion air and forces it across the burner and heat exchanger, transferring heat to the output airstream without exposing the heated space to combustion gases. Consistent fan performance is essential — if airflow drops due to a damaged or worn fan, the burner cannot maintain proper combustion, leading to reduced heat output, nuisance shutdowns, or unsafe operating conditions. Replacing a failed fan with the correct OEM part restores the designed airflow balance and returns the heater to full, reliable operation.
Part Details
| Part Number | 5000183557 |
|---|---|
| Old Part Number | 0183557 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fan |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI750 DGM HEATER-INDIRECT | HI750GM | 5000620859, 5000620930 |
| Mobile Indirect Fired Air Heat er, Diesel | HI750D | 5000620856, 5000620923, 5000620924 |
| HI 750GM HD-Mobile Indirect Ai r Heater-Surge, -40 | HI750GMHD | 5000620969 |
| HI750G HEATER-INDIRECT | HI750G | 5000620857, 5000620928, 5000620929 |
| HI900 Heater-DGM,Srg,-40 | HI900DGM | 5200014221, 5200014222, 5200014165, 5200014166 |
| HI 900D Heater-Indirect | HI900D | 5200014158, 5200014159, 5200014160 |
| Skid Indirect Air Heaters Natu ral Gas | HI900G | 5200014161 |
| HI 900G Heater-Indirect,3x16 | HI900 G | 5200014163, 5200014164 |
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.
