The Wacker Neuson Fuel Pump is a genuine OEM component designed for the HI 400HD D Indirect Air Heater. As a direct factory replacement, this part is built to the same specification as the original, ensuring consistent fuel delivery and dependable heater operation on the jobsite. This is the exact Wacker Neuson part engineered for the HI 400HD D series, so you can install with confidence knowing fitment and function are correct from the start.
Key Features
- OEM-Matched Fuel Flow Rate — Manufactured to the original output specification, delivering the precise fuel volume the HI 400HD D burner system requires for consistent ignition and heat output.
- Drop-In Replacement — Matches the original mounting configuration and fuel line connections of the HI 400HD D, allowing straightforward installation without adaptation.
- Verified Fitment for HI 400HD D — Confirmed for the HI 400HD D Indirect Air Heater; use part number 5000183942 to validate compatibility before ordering.
- Sustained Heating Performance — A correctly functioning fuel pump maintains steady burner combustion, supporting the full rated heat output of the unit during cold-weather operations.
- Fuel System Safety — A worn or failing pump can cause lean-burn conditions, ignition failure, or unburned fuel accumulation; replacing with a genuine OEM unit restores safe, controlled fuel delivery.
The fuel pump is responsible for drawing diesel fuel from the tank and delivering it at the correct pressure and flow rate to the burner assembly inside the indirect air heater. Without adequate fuel supply, the burner cannot ignite reliably or sustain combustion, resulting in loss of heat output or repeated ignition faults. A degraded pump that delivers inconsistent pressure can also cause incomplete combustion, which reduces efficiency and may trigger safety shutdowns — making timely replacement with the correct OEM part essential to keeping the heater operating safely.
Part Details
| Part Number | 5000183942 |
|---|---|
| Old Part Number | 0183942 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fuel Pump |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 400HD D Indirect Air Heater | HI400HDD | 5000620868 |
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.
