The Wacker Neuson Valve Block is a genuine OEM component designed for the RD18, RD24, RD27, and RD28 series tandem rollers. Sourced directly from Wacker Neuson, this part carries the same specification as the original, ensuring a verified, direct replacement within the hydraulic system. Fitment spans a broad range of RD-series configurations — including standard, C, and O variants — across multiple production generations and US-spec models. When hydraulic performance matters, installing the correct OEM-grade valve block keeps the machine operating as engineered.
Key Features
- Genuine OEM Hydraulic Precision — Manufactured to Wacker Neuson's original valve tolerances, ensuring accurate flow control and pressure regulation specific to the RD-series hydraulic circuit.
- Direct Drop-In Replacement — Matches the original mounting configuration and port layout for straightforward installation without rework or adaptation to existing hydraulic lines.
- Broad RD-Series Compatibility — Fits RD18-80, RD18-100, RD24-100, RD27-120, RD28-120, and their C (combi) and O (offset) variants, including US-spec and .3-generation models.
- Consistent Hydraulic Output — A functioning valve block maintains proper pressure distribution to the drum drive and vibration circuits; a worn or failed unit can cause erratic drum behavior, loss of drive force, or uncontrolled vibration output.
The valve block is a core hydraulic control component that directs and regulates pressurized fluid flow between the pump, drum drive motors, and vibration system on a tandem roller. It acts as the central routing and switching point within the hydraulic circuit, controlling which functions receive flow and at what pressure. When a valve block begins to fail — through internal leakage, spool wear, or contamination — the machine may exhibit sluggish or uneven drum drive, loss of vibration, or unpredictable hydraulic response, all of which directly impact compaction performance and operator control.
Part Details
| Part Number | 5100011909 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Valve Block |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD18-80 Tandem Roller | RD18-80 | 5100011382, 5100047360 |
| RD18-100 Tandem Roller | RD18-100 | 5100011383, 5100047361 |
| 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 |
| RD18-80 Tandem Roller | RD18-80 US | 5100027572 |
| RD18-100 Tandem Roller | RD18-100 US | 5100027573 |
| RD 24-100.3 | RD 24-100.3 | 5100032197 |
| RD27-120 | RD 27-120.3 | 5100032198 |
| Vibration Roller | RD18-80 SE | 5100044988 |
| Vibration Roller | RD18-100 SE | 5100044989 |
| 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 |
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.
