The Wacker Neuson Fuel Pump Complete is a genuine OEM component designed for the HI 300HD D and HI 300D diesel indirect air heaters. Sourced directly from Wacker Neuson, this fuel pump assembly meets the original engineering specifications for these heater models and installs as a direct replacement for the factory unit. Verified against model numbers HI300HDD and HI300D, this part ensures an accurate, hassle-free swap with no guesswork on compatibility.
Key Features
- Genuine OEM Fuel Delivery Precision — Built to exact output pressure and flow specifications for diesel indirect air heaters, ensuring consistent fuel delivery to the burner assembly.
- Drop-In Assembly Replacement — Supplied as a complete pump assembly with all internal components intact, connecting directly to the existing fuel line and mounting points on the HI 300HD D and HI 300D.
- Confirmed Fitment for HI 300 Series Heaters — Verified for the HI 300HD D (model HI300HDD) and HI 300D (model HI300D) diesel indirect air heaters.
- Restore Full Heating Output — A failed or weak fuel pump starves the burner of diesel, causing ignition failures or reduced heat output; replacing it restores the heater to full rated BTU performance.
- Fuel System Safety Compliance — As a critical fuel system component, using a genuine OEM pump ensures correct fuel pressure regulation and helps prevent fuel leaks or unsafe operating conditions in enclosed or heated workspaces.
The fuel pump is responsible for drawing diesel fuel from the tank and delivering it at the correct pressure to the heater's burner nozzle. Without consistent fuel flow, the burner cannot ignite reliably or sustain combustion, resulting in intermittent heating, hard starts, or complete heater shutdown. A worn or failing pump is a common cause of poor heat output in diesel indirect air heaters, making timely replacement essential for keeping crews warm and productive during cold-weather operations.
Part Details
| Part Number | 5000186780 |
|---|---|
| Old Part Number | 0186780 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fuel Pump Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 300HD D Indirect Air Heater, Diesel | HI300HDD | 5000620867 |
| HI 300D, HEATER-INDIRECT, DIESEL, -20° | HI300D | 5000620866 |
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.
