The Wacker Neuson is a genuine OEM Diff. Area Relief Valve 2000 PSI designed for the RD11A, RD11V, and RD11AEC hydrostatic double drum vibratory rollers. As a factory-sourced component, this valve is manufactured to the exact pressure specification required by the hydrostatic drive system in the RD11 series. Sourcing a genuine OEM part like the ensures that the hydraulic circuit operates at the correct relief setting, protecting downstream components from overpressure damage. If your RD11 roller is showing sluggish drum response, excessive heat in the hydraulic system, or erratic drive behavior, a failed or out-of-spec relief valve is a common root cause.
Key Features
- Exact 2000 PSI Relief Setting — Factory-calibrated to the precise cracking pressure required by the RD11 series hydrostatic circuit, ensuring the system vents at the correct threshold without over- or under-pressure conditions.
- Genuine OEM Sourcing — Produced by Wacker Neuson as an original equipment component, so the valve body, seat geometry, and spring rate match the original design specification exactly.
- Direct Hydraulic System Fitment — Engineered to integrate directly into the hydrostatic drive circuit of the RD11A, RD11V, and RD11AEC tandem rollers without requiring circuit modification or pressure re-calibration.
- Protects the Full Hydrostatic Drive — A correctly functioning differential area relief valve limits peak pressure spikes that could otherwise damage the hydraulic pump, motor, or associated seals across the drum drive system.
- Addresses Common RD11 Hydraulic Faults — Worn or drifted relief valves are a leading cause of inconsistent drum drive force and overheating in the RD11 family; replacing with part 5000112281 restores correct system behavior.
A differential area relief valve controls maximum hydraulic pressure within a specific circuit by opening to divert fluid flow once a set pressure threshold is reached — in this case, 2000 PSI. In a hydrostatic double drum roller like the RD11 series, this valve protects the drive circuit from destructive pressure spikes that occur during load changes, drum stall conditions, or sudden directional shifts. When the valve wears, sticks, or loses its calibrated cracking pressure, the hydraulic system may run hot, deliver inconsistent drum drive force, or allow pressure levels that accelerate wear across pumps, motors, and seals throughout the circuit.
Part Details
| Part Number | 5000112281 |
|---|---|
| Old Part Number | 0112281 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Diff. Area Relief Valve 2000 PSI |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Double Drum Vibrat ory Roller | RD11AEC | 5000007695 |
| Hydrostatic Double Drum Vibrat ory Roller | RD11V | 5000007694 |
| Hydrostatic Double Drum Vibrat ory Roller | RD11A | 5000007693 |
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.
Wacker Neuson
Wacker Neuson 5000078959 Differential Area Relief Valve 2000 PSI
