The Wacker Neuson Injection Pump is a genuine OEM component designed for RD7 series walk-behind tandem rollers and DPU 4045, DPU 4545, DPU 5045, and DPU 5545 series diesel reversible vibratory plate compactors. As a direct Wacker Neuson OEM part, the is manufactured to the same specification as the original unit, ensuring correct fuel delivery performance across every compatible machine in this broad fitment range. This pump serves a critical role in the diesel fuel system, and sourcing a genuine replacement means you can trust it to perform exactly as designed from the first startup. Confirm your model number before ordering — this part covers an extensive range of RD7 and DPU variants across multiple production series.
Key Features
- Genuine OEM Fuel Delivery Precision — Manufactured to Wacker Neuson's original injection timing and flow specifications, ensuring consistent fuel atomization and combustion efficiency specific to these diesel engines.
- Direct-Fit Replacement — Engineered to bolt into the existing fuel system mounting points on compatible RD7 and DPU machines without adaptation, using the original fuel line and mounting hardware connections.
- Broad Fitment Across Two Machine Families — Covers RD7H-S, RD7H, and RD7He tandem rollers, plus DPU 4045H, DPU 4545H/He, DPU 5045H/He, and DPU 5545H/He reversible vibratory plate compactors across multiple production configurations.
- Restored Engine Power and Efficiency — A worn or failing injection pump causes hard starting, rough running, loss of compaction force, and excessive fuel consumption; replacing it with the correct OEM unit restores full diesel output and smooth operation.
- Fuel System Safety Compliance — An OEM-spec injection pump maintains correct injection pressure, reducing the risk of fuel system leaks, uncontrolled combustion, or engine damage associated with out-of-spec aftermarket substitutes on diesel-powered equipment.
The injection pump is the heart of the diesel fuel system on these machines. Its job is to draw fuel from the tank, pressurize it precisely, and deliver metered doses to the injector or injectors at exactly the right moment in the engine's firing cycle. On compaction equipment like the RD7 tandem rollers and DPU series vibratory plates, consistent engine output directly affects the machine's compaction energy — if the pump is underperforming, the engine bogs, vibration output drops, and compaction results suffer. A failing injection pump typically presents as hard cold starts, irregular idle, black or white exhaust smoke, or a gradual loss of power under load, and left unaddressed, it can accelerate wear on other fuel system components.
Part Details
| Part Number | 5000226588 |
|---|---|
| Old Part Number | 0226588 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Injection Pump |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD 7S | RD7H-S EU | 5000620795 |
| RD7H-S ROLLER,DOUBLE DRUM | RD7H-S | 5000009487 |
| RD7 Tandem Roller | RD7He | 5100017193, 5100017194, 5200015241, 5200015244, 5100038031, 5100018451 |
| RD7 Tandem Roller | RD7H | 5100017195, 5100017338, 5200015242, 5200015245 |
| V.Plate DPU 5045Heap | DPU 5045H | 5000610046, 5000610052, 5000610047 |
| V.Plate DPU 4045Hap | DPU 4045H | 5000610044, 5000610051, 5000610064 |
| DPU5545Heh | DPU5545Heh | 5100009652 |
| DPU5545Hehap | DPU5545Hehap | 5100009654 |
| DPU5545Hech | DPU5545Hech | 5100009655 |
| DPU4545Heh | DPU4545Heh | 5100009659 |
| DPU4545Hech | DPU4545Hech | 5100015429 |
| DPU5545He | DPU5545He | 5100016947 |
| DPU5545Heap | DPU5545Heap | 5100016949 |
| DPU5545Hec | DPU5545Hec | 5100016950 |
| DPU4545He | DPU4545He | 5100016951 |
| DPU4545Hec | DPU4545Hec | 5100016953 |
| DPU 5045He-VIBROPLATE | DPU 5045He US | 5000610367 |
| DPU5545He-VIBROPLATE | DPU 5545He US | 5000610402 |
| Vibratory Plate DPU 4545He US | DPU 4545He US | 5100000679 |
| DPU5545H | DPU 5545H | 5100009656, 5000610352 |
| DPU4545H | DPU 4545H | 5100009661, 5000610348 |
| DPU4545He-VIBROPLATE | DPU 4545He | 5000610347 |
| Vibratory Plate DPU 4545Hap | DPU 4545Hap | 5000610349 |
| Vibratory Plate DPU 5545He | DPU 5545He | 5000610351 |
| Vibratory Plate DPU 5545Heap | DPU 5545Heap | 5000610353 |
| Vibratory Plate | DPU 5545Hec | 5100005859 |
| DPU5545HEH US | DPU5545Heh US | 5100009653 |
| DPU4545HEH US | DPU4545Heh US | 5100009660 |
| DPU4545Hechzf | DPU4545Hechzf | 5100022112 |
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.
