The Wacker Neuson 5100025286 is a genuine OEM Directional Valve designed for the RD27-100 and RD27-120 series tandem rollers, including Basic, Pro, and Tier 4 Final variants. As a factory-authorized component, this valve is produced to the exact specifications of the original part, ensuring correct hydraulic flow control and directional response within the hydrostatic drive system. This part fits a wide range of RD27 configurations, making it the straightforward replacement choice for RD27-100 and RD27-120 machines across multiple production runs.
Key Features
- OEM-Spec Hydraulic Tolerancing — Manufactured to exact internal spool and porting dimensions for consistent flow control and responsive directional switching in the hydrostatic circuit.
- Direct-Mount Replacement — Engineered as a drop-in replacement that connects to the existing hydraulic lines and mounting points on RD27 series rollers without rework or adaptation.
- Broad RD27 Series Fitment — Confirmed compatible with RD27-100 and RD27-120 models, including Basic, Pro, and Tier 4 Final editions across multiple machine serial ranges.
- Maintains Smooth Drum Direction Control — A correctly functioning directional valve ensures positive, lag-free forward and reverse engagement — a worn or failed valve causes sluggish response, uncontrolled drift, or loss of drive direction.
- Hydraulic System Integrity — Proper sealing and spool fit prevents internal bypass and pressure loss, protecting downstream hydrostatic drive components from premature wear.
A directional valve controls the flow path of hydraulic fluid within the hydrostatic drive circuit, determining which direction pressurized fluid moves to drive the roller drums forward or in reverse. In tandem rollers like the RD27 series, precise directional control is essential for accurate passes on asphalt and compacted surfaces. When this valve wears or fails, operators may experience hesitation, loss of direction response, or unintended machine movement, all of which compromise compaction quality and safe machine handling.
Part Details
| Part Number | 5100025286 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Directional Valve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Vibratory Roller | RD27-100 | 5200014868, 5200005878, 5200023554, 5200023556, 5200021387, 5200005876 |
| Hydrostatic Vibratory Roller | RD27-120 | 5200005879, 5200014922, 5200014923, 5200014869, 5200024441, 5200023557, 5200023555, 5200005877, 5200021389 |
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.
