The Wacker Neuson Diesel Fuel Pump is a genuine OEM component designed for the HDR 155 Direct Fired Radiant Heater. Sourced directly from Wacker Neuson, this replacement pump meets the exact specifications of the original factory-installed unit — no guesswork on compatibility. If your HDR 155 is failing to ignite, running with an uneven flame, or shutting down due to fuel delivery issues, this is the part that restores proper operation.
Key Features
- Genuine OEM Fuel Delivery Spec — Matched to the HDR 155's precise fuel pressure and flow requirements, ensuring consistent diesel delivery to the burner assembly.
- Direct Drop-In Replacement — Engineered to the same mounting configuration and port sizing as the original, allowing straightforward installation without adapters or modifications.
- Confirmed Fitment — Verified for the HDR 155 Direct Fired Radiant Heater (model HDR155_5200007530).
- Restored Heating Output — A properly functioning fuel pump maintains the steady diesel flow the burner needs to produce full-rated heat output — critical on cold-weather jobsites where consistent warmth is non-negotiable.
- Fuel System Safety — A worn or failing pump can cause unburned fuel accumulation or erratic flame behavior. Replacing it with a genuine OEM unit helps maintain safe, controlled combustion within the heater.
The diesel fuel pump is responsible for drawing fuel from the tank and delivering it at a consistent pressure to the heater's burner assembly. Without steady, correctly pressurized fuel flow, the burner cannot ignite reliably or sustain a stable flame — leading to heat loss, fault shutdowns, or failed ignition cycles. When the pump wears out or fails, fuel starvation symptoms appear quickly, making it one of the first components to inspect when an HDR 155 heater stops performing as expected.
Part Details
| Part Number | 5200011786 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Diesel Fuel Pump |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HDR 155 Direct Fired Radiant Heater | HDR155 | 5200007530 |
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.
