The Wacker Neuson Pressure Relief Valve is a genuine OEM component designed for the RD40-130 and RD45-140 series double drum rollers, including standard, c, and o configurations. As a direct OEM replacement, this valve is built to the same specifications as the original unit installed at the factory, ensuring consistent hydraulic system behavior right out of the box. Compatibility is confirmed across six model variants — RD40-130.3, RD45-140.3, RD40-130c.3, RD45-140c.3, RD40-130o.3, and RD45-140o.3 — making this the correct choice for a wide spread of Wacker Neuson roller configurations.
Key Features
- OEM-Calibrated Relief Pressure: — Manufactured to the exact pressure threshold of the original, ensuring the hydraulic circuit is protected without nuisance tripping or under-protection.
- Direct-Swap Installation: — Matches the original valve's thread specification and port configuration, so it seats and seals the same way as the part it replaces.
- Broad RD Series Coverage: — Fits all three variants of the RD40-130.3 and RD45-140.3 — standard, c, and o configurations — covering a wide range of Wacker Neuson tandem rollers in one part number.
- Hydraulic System Protection: — A correctly functioning pressure relief valve prevents over-pressurization that can damage pumps, motors, and hydraulic lines; a failed or stuck-open valve causes sluggish drive response and loss of compaction force.
- Pressure System Safety: — Hydraulic over-pressure events can result in hose failure or component rupture; using a valve matched to the original relief setting maintains safe operating pressure limits for the operator and the machine.
A pressure relief valve acts as the hydraulic system's safety threshold — it opens at a preset pressure to divert fluid back to the reservoir, preventing excessive pressure from building up in the circuit. On a compaction roller like the RD40-130 and RD45-140 series, this valve protects the drive and vibration hydraulics from spike loads during hard starts, direction changes, or stalled conditions. When the valve sticks closed, system pressure climbs unchecked and risks damaging downstream components; when it sticks open or leaks past its seat, the machine loses the drive force and compaction performance it depends on.
Part Details
| Part Number | 5100067828 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pressure Relief Valve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD40-130.3 | RD40-130.3 | 5100047395 |
| RD45-140.3 | RD45-140.3 | 5100047396 |
| RD40-130c.3 | RD40-130c.3 | 5100047397 |
| RD45-140c.3 | RD45-140c.3 | 5100047398 |
| RD40-130o.3 | RD40-130o.3 | 5100047399 |
| RD45-140o.3 | RD45-140o.3 | 5100047400 |
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.
