The Wacker Neuson Valve Block is a genuine OEM component designed for the RD24-100, RD27-120, RD28-120, and related tandem roller series, including C, O, US, DPF, and.3 variants. As a direct OEM replacement, this valve block is manufactured to the same specifications as the original part, ensuring it installs and operates exactly as intended with no guesswork on fitment. It is compatible across a wide range of Wacker Neuson tandem roller configurations, making it a reliable sourcing option whether you are servicing a standard, open-drum, canopy, or DPF-equipped machine. Confirm your machine's serial number against the fitment list before ordering to ensure the is the correct valve block for your roller.
Key Features
- OEM-Spec Hydraulic Porting: — Built to original pressure ratings and flow characteristics, so the valve block regulates hydraulic circuits with the same performance as the part it replaces.
- Drop-In Installation: — Matches the original mounting pattern and port configuration on supported Wacker Neuson tandem rollers, allowing straightforward removal and installation using standard tooling.
- Broad Model Coverage: — Fits RD24-100, RD27-120, and RD28-120 tandem roller families across multiple build variants — standard, canopy (C), open drum (O), US-market, DPF, and .3-series machines.
- Consistent Compaction Output: — A correctly functioning valve block maintains precise hydraulic pressure delivery to the drum drive circuit, directly supporting consistent compaction force and smooth forward/reverse control.
- Hydraulic System Integrity: — A failed or leaking valve block can cause erratic drum behavior, pressure loss, or uncontrolled movement; replacing with a genuine OEM part restores safe, predictable machine operation.
A valve block is a manifold-style hydraulic component that routes and regulates pressurized fluid between multiple circuits within the machine's hydraulic system. On a tandem roller, it governs the flow of hydraulic oil to the drum drive motors, controlling direction, speed, and braking response. When a valve block wears, cracks, or develops internal leakage, the machine can exhibit sluggish response, uneven drum drive, or loss of control — all of which compromise both productivity and operator safety. Replacing a faulty valve block with a genuine OEM unit restores the hydraulic system to its designed operating parameters.
Part Details
| Part Number | 5100012257 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Valve Block |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD24-100 Tandem Roller | RD24-100 | 5100011385, 5100047374 |
| RD27-120 Tandem Roller | RD27-120 | 5100011386 |
| RD24-100 C Tandem Rollers | RD24-100 C | 5100011387 |
| RD27-120 C Tandem Roller | RD27-120 C | 5100011388 |
| RD24-100 O Tandem Roller | RD24-100 O | 5100011389 |
| RD27-120 O Tandem Roller | RD27-120 O | 5100011390 |
| RD24-100 Tandem Roller | RD24-100 US | 5100021755 |
| RD28-120 Tandem Roller | RD28-120 US | 5100021756 |
| RD24-100 C Tandem Roller | RD24-100C US | 5100021757 |
| RD28-120 C Tandem Roller | RD28-120C US | 5100021758 |
| RD24-100 O Tandem Roller | RD24-100O US | 5100021759 |
| RD28-120 O Tandem Roller | RD28-120O US | 5100021800 |
| RD 24-100.3 | RD 24-100.3 | 5100032197 |
| RD27-120 | RD 27-120.3 | 5100032198 |
| RD24-100c.3 | RD24-100c.3 | 5100047370 |
| RD27-120c | RD27-120c.3 | 5100047371 |
| RD24-100o.3 | RD24-100o.3 | 5100047372 |
| RD27-120o | RD27-120o.3 | 5100047373 |
| RD28-120 | RD28-120 | 5100047375 |
| RD24-100c | RD24-100c | 5100047376 |
| RD28-120c | RD28-120c | 5100047377 |
| RD24-100o | RD24-100o | 5100047378 |
| RD28-120o | RD28-120o | 5100047379 |
| RD24-100 DPF | RD24-100 DPF | 5100047380 |
| RD28-120 DPF | RD28-120 DPF | 5100047390 |
| RD24-100o DPF | RD24-100o DPF | 5100047393 |
| RD28-120o DPF | RD28-120o DPF | 5100047394 |
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.
