The Wacker Neuson Pressure-Relief Valve is a genuine OEM component designed for the RD40-130 and RD45-140 series tandem rollers, including standard, C, O, US, and.3 variants. As a direct Wacker Neuson OEM part, the is manufactured to the same specification as the original, ensuring a drop-in fit with no guesswork. This valve is compatible across a broad range of RD-series configurations, covering both drum and combination roller variants used in professional compaction applications.
Key Features
- OEM-Rated Pressure Calibration — Manufactured to the precise cracking pressure specification of the original, ensuring the hydraulic circuit opens and closes at exactly the right threshold.
- Direct Drop-In Replacement — Matches the original port threading and body dimensions for straightforward installation into the existing hydraulic circuit without additional fittings or adapters.
- Broad RD-Series Compatibility — Fits RD40-130 and RD45-140 tandem rollers across standard, C, O, US, and .3 model variants, covering a wide range of production configurations.
- Hydraulic System Integrity — A correctly functioning pressure-relief valve protects pumps, motors, and hoses from overpressure damage; a failed or stuck valve can cause loss of drive performance or component failure.
- Overpressure Safety Protection — In hydraulic drive systems, an out-of-spec or failed relief valve can expose downstream components to dangerous pressure spikes — using a properly calibrated OEM replacement is critical to safe operation.
A pressure-relief valve is a safety and control component within the hydraulic system of a tandem roller. Its job is to limit the maximum pressure in the hydraulic circuit by opening and diverting flow when pressure exceeds a set threshold, protecting pumps, motors, and hoses from damage caused by overpressure. When a pressure-relief valve fails — whether it sticks open, sticks closed, or loses its calibrated setting — the result can range from sluggish or weak drum drive performance to catastrophic hydraulic component damage, making timely replacement essential.
Part Details
| Part Number | 5100012087 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pressure-Relief Valve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD40-130 Tandem Roller | RD40-130 | 5100011391 |
| RD45-140 Tandem Roller | RD45-140 | 5100011392 |
| RD40-130 C Tandem Roller | RD40-130 C | 5100011393 |
| RD45-140 C Tandem Roller | RD45-140 C | 5100011394 |
| RD40-130 O | RD40-130 O | 5100011395 |
| RD45-140 O Tandem Roller | RD45-140 O | 5100011396 |
| RD40-130 Tandem Roller | RD40-130 US | 5100021801 |
| RD45-140 Tandem Roller | RD45-140 US | 5100021802 |
| RD40-130 C Tandem Roller | RD40-130C US | 5100021803 |
| RD45-140 C Tandem Roller | RD45-140C US | 5100021804 |
| RD40-130 O Tandem Roller | RD40-130O US | 5100021805 |
| RD45-140 O Tandem Roller | RD45-140O US | 5100021806 |
| 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.
