The Wacker Neuson Pump Mounting Flange is a genuine OEM component designed for the HDR 155 Direct Fired Radiant Heater and HDR 45 direct-fired radiant heaters. As a factory-sourced part, the meets the exact dimensional and material standards set by Wacker Neuson, ensuring the fuel pump seats and seals correctly within the heater assembly. This flange is a direct-fit replacement that installs in the same position as the original, with no adaptation needed to match the mounting interface.
Key Features
- Genuine OEM Construction — Machined to Wacker Neuson's original dimensional tolerances, ensuring the pump seats flush and the mounting interface holds under continuous heating cycles without distortion or fluid migration.
- Direct-Fit Installation — Bolt pattern and flange face match the original mounting points on the HDR-series heater frame, allowing straightforward swap-out during service.
- Confirmed Fitment — Compatible with the HDR 155 Direct Fired Radiant Heater and HDR 45, covering both models in the HDR direct-fired radiant heater family.
- Fuel System Integrity — A correctly fitted pump mounting flange maintains proper pump alignment and a leak-free connection at the fuel circuit; a damaged or warped flange can allow fuel seepage and cause inconsistent burner performance.
- Fuel System Safety Relevance — Because this flange is part of the direct fuel-feed path, using a correctly rated OEM replacement helps maintain a properly sealed system and supports safe heater operation on the worksite.
The pump mounting flange provides the structural interface between the fuel pump and the heater body on Wacker Neuson HDR-series direct-fired radiant heaters. It locates the pump in precise alignment so that fuel is delivered consistently to the burner assembly — misalignment or a cracked flange can disrupt fuel flow, cause hard-starting, or result in fuel leaks around the pump housing. Replacing a worn or damaged flange with the correct OEM part restores the integrity of the fuel circuit and keeps the heater running at its rated output.
Part Details
| Part Number | 5200011789 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pump Mounting Flange |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HDR 155 Direct Fired Radiant Heater | HDR155 | 5200007530 |
| HDR 45 | HDR45 | 5200013800 |
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.
