The Wacker Neuson Valve Block is a genuine OEM component designed for the RD18-80 and RD18-100 series tandem and vibration rollers. As a direct OEM replacement, this valve block is manufactured to the same specifications as the original, ensuring correct hydraulic circuit operation across all compatible RD18 configurations. Fitment covers a broad range of RD18-80 and RD18-100 models, including US and SE variants, giving you confidence that this is the right part for your machine.
Key Features
- OEM Hydraulic Precision — Manufactured by Wacker Neuson to exact internal porting and pressure tolerances, so hydraulic flow and control response meet original design parameters.
- Direct Bolt-In Replacement — Matches the original mounting configuration and port threading of the factory valve block, allowing straightforward installation without line rerouting or bracket modification.
- Broad RD18 Series Compatibility — Fits RD18-80 and RD18-100 tandem rollers across standard, US, SE, and .3-suffix model variants, covering a wide production range of machines.
- Sustained Hydraulic Control Performance — A correctly functioning valve block maintains consistent directional and pressure control within the roller's hydraulic system; a worn or leaking unit can cause erratic drum drive response and loss of compaction control.
- Genuine OEM Part Assurance — Sourced directly from Wacker Neuson, part number 5100012427 carries the same quality verification as the original production component, not a reverse-engineered substitute.
The valve block is a central hydraulic control component that governs the direction and distribution of pressurized fluid to the roller's drive and vibration circuits. By routing hydraulic flow to the correct actuators at the right pressure, it gives the operator precise control over drum movement and compaction force. When the valve block develops internal leaks or spool wear, the machine may exhibit sluggish or inconsistent drum response, pressure loss, or uncontrolled movement — all of which directly affect compaction quality and safe machine operation.
Part Details
| Part Number | 5100012427 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Valve Block |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD18-80 Tandem Roller | RD18-80 | 5100011382, 5100047360, 5100055774 |
| RD18-100 Tandem Roller | RD18-100 | 5100011383, 5100047361, 5100055775 |
| RD18-80 Tandem Roller | RD18-80 US | 5100027572 |
| RD18-100 Tandem Roller | RD18-100 US | 5100027573 |
| Vibration Roller | RD18-80 SE | 5100044988 |
| Vibration Roller | RD18-100 SE | 5100044989 |
| RD18-80.3 | RD18-80.3 | 5100055946 |
| RD18 | RD18-100.3 | 5100055947 |
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.
