The Wacker Neuson 5100025030 is a genuine OEM fuel pump designed for the RD24, RD28, RD40, and RD45 series tandem rollers. As a direct factory replacement, this part restores proper fuel delivery to the engine and is specified across a wide range of standard, DPF, open-drum, and combination-drum configurations in the RD roller lineup. Sourcing the correct OEM part number ensures this pump matches the original fuel system design exactly, which is critical on diesel-powered compaction equipment where consistent engine performance directly affects compaction quality and output. If your roller is experiencing hard starts, engine stalling, or inconsistent power, a failed fuel pump is a common cause worth investigating.
Key Features
- Genuine OEM Fuel Delivery Spec: — Built to the exact flow rate and pressure output required by the RD-series diesel engines — not an approximation.
- Drop-In Installation: — Matches original port sizing, mounting configuration, and inlet/outlet orientation for a straightforward swap with no system modification.
- Broad RD-Series Coverage: — Fits RD24, RD28, RD40, and RD45 tandem rollers across standard, DPF, open-drum (o), combination-drum (c), and US-market variants.
- Consistent Engine Performance: — A properly functioning fuel pump maintains steady fuel pressure to the injection system, keeping the roller delivering full compaction force throughout the workday.
- Fuel System Integrity: — Correct pump fitment matters in diesel fuel systems; an undersized or mismatched pump can cause lean-running conditions that damage injectors and other downstream components over time.
The fuel pump is responsible for drawing diesel from the tank and delivering it at a consistent pressure to the engine's injection system. On tandem rollers like the RD24, RD28, RD40, and RD45, the diesel engine must sustain steady output across variable load conditions — and the fuel pump is the first link in that chain. When the pump weakens or fails, symptoms typically include difficult cold starts, rough idling, loss of engine power under load, or the engine shutting down unexpectedly. Replacing a worn pump promptly with the correct OEM part, such as the Wacker Neuson 5100025030, prevents secondary damage to fuel injectors and keeps the machine operating at the performance level the job demands.
Part Details
| Part Number | 5100025030 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fuel Pump |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD45-140 C Tandem Roller | RD45-140C US | 5100021804 |
| RD28-120 DPF | RD28-120 DPF | 5100047390 |
| RD24-100c DPF | RD24-100c DPF | 5100047391 |
| RD24-100o DPF | RD24-100o DPF | 5100047393 |
| RD45-140o | RD45-140o | 5100047387 |
| RD45-140c | RD45-140c | 5100047385 |
| RD40-130c DPF | RD40-130c DPF | 5100055779 |
| RD40-130c | RD40-130c | 5100047384 |
| RD40-130o | RD40-130o | 5100047386 |
| RD40-130 O Tandem Roller | RD40-130O US | 5100021805 |
| RD28-120c DPF | RD28-120c DPF | 5100047392 |
| RD40-130 | RD40-130 | 5100047382 |
| RD45-140 O Tandem Roller | RD45-140O US | 5100021806 |
| RD45-140o DPF | RD45-140o DPF | 5100055782 |
| RD40-130 C Tandem Roller | RD40-130C US | 5100021803 |
| RD45-140 | RD45-140 | 5100047383 |
| RD24-100 DPF | RD24-100 DPF | 5100047380 |
| RD45-140c DPF | RD45-140c DPF | 5100055780 |
| RD45-140 Tandem Roller | RD45-140 US | 5100021802 |
| RD45-140 DPF | RD45-140 DPF | 5100055778 |
| RD40-130 Tandem Roller | RD40-130 US | 5100021801 |
| RD40-130 DPF | RD40-130 DPF | 5100055777 |
| RD28-120o DPF | RD28-120o DPF | 5100047394 |
| RD40-130o DPF | RD40-130o DPF | 5100055781 |
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.
