The Wacker Neuson Injection Valve Complete is a genuine OEM component designed for the RD7H-ES tandem roller series and the DPU 4045H and DPU 5045H reversible vibratory plate compactors. As a direct Wacker Neuson OEM part, the is built to the same specifications as the original, ensuring proper fuel delivery and consistent engine performance. This assembly covers a wide range of DPU 4045H and DPU 5045H configurations, making it the correct replacement choice across multiple machine variants. When the original injection valve degrades or fails, replacing it with the correct OEM part restores proper fuel atomization and keeps the engine running at peak efficiency.
Key Features
- OEM Fuel Delivery Precision — Engineered to Wacker Neuson's original injection specifications, this valve complete ensures correct fuel metering and spray pattern for diesel engine combustion efficiency.
- Drop-In Assembly Fitment — Supplied as a complete injection valve assembly, matching the original mounting configuration for a straightforward swap with no adaptation needed on the fuel system.
- Broad DPU and RD Series Coverage — Confirmed fitment across DPU 4045H and DPU 5045H reversible vibratory plate compactors and the RD7H-ES walk-behind tandem roller.
- Restores Consistent Engine Output — A worn or leaking injection valve causes hard starting, rough idle, and loss of compaction power; this OEM replacement brings fuel injection back to original operating condition.
- Fuel System Integrity — Correct valve seating and sealing prevent unmetered fuel entry into the combustion chamber, protecting the engine from over-fueling and premature wear.
The injection valve complete controls the precise delivery of diesel fuel into the engine's combustion chamber, opening under pressure to atomize fuel at the correct moment in the combustion cycle. When the valve is functioning correctly, the engine starts reliably, idles smoothly, and delivers consistent power to drive the compaction mechanism. A worn, clogged, or leaking injection valve disrupts fuel atomization, leading to rough running, excessive smoke, power loss, and in severe cases, internal engine damage from improper combustion.
Part Details
| Part Number | 5000126923 |
|---|---|
| Old Part Number | 0126923 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Injection Valve Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD 7ES | RD7H-ES EU | 5000620794 |
| RD7H-ES Tandem Roller | RD7H-ES | 5000009408 |
| Reversible Vibratory Plate, 50 kN, 45cm/18in | DPU 5045H | 5000007862, 5000007936, 5000007965, 5000610045, 5000610046, 5000610047, 5000610052 |
| Reversible Vibratory Plate, 50 kN, 45cm/18in | DPU 4045H | 5000007888, 5000007935, 5000610043, 5000610044, 5000610051, 5000610064 |
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.
