The Wacker Neuson Pressure Relief Valve is a genuine OEM component designed for the RD18 tandem roller and RC50 single drum soil compactor series. Sourced directly from Wacker Neuson, this part carries the same specification as the valve installed at the factory, ensuring a direct, like-for-like swap on every compatible machine. Verified fitment spans the full RD18-80, RD18-100, and RD18-100 C lineup — including US and SE variants — as well as the RC50 and RC50p models in standard, DPF CAB, and DPF ROPS configurations. When your hydraulic system needs attention, using the correct OEM valve keeps pressure regulation accurate and protects the rest of the circuit.
Key Features
- OEM-Rated Pressure Tolerance — Manufactured to Wacker Neuson's exact cracking-pressure specification, so the valve opens and closes at the correct threshold every time.
- Direct Drop-In Replacement — Matches the original port sizing and thread configuration for a straightforward installation with no reworking of existing hydraulic lines.
- Broad Series Fitment — Compatible with RD18-80, RD18-100, and RD18-100 C tandem rollers and RC50 and RC50p single drum soil compactors, including DPF CAB and DPF ROPS variants.
- Protects the Full Hydraulic Circuit — A correctly functioning pressure relief valve prevents over-pressurization that can damage pumps, motors, and hoses — keeping repair costs predictable.
- Hydraulic System Safety — Pressure relief valves are a primary safeguard against dangerous hydraulic pressure spikes; using an OEM-spec valve ensures the circuit is protected within the designed operating limits of the machine.
A pressure relief valve is the hydraulic system's safety net. It monitors line pressure continuously and, when pressure exceeds the designed operating limit, opens to divert excess fluid back to the tank — preventing catastrophic stress on pumps, cylinders, and seals. On compaction equipment like the RD18 and RC50 series, where the hydraulic circuit drives vibration systems and propulsion, a worn or failed relief valve can cause sluggish travel, erratic drum vibration, excessive heat buildup, and ultimately component failure deeper in the system. Replacing a faulty valve promptly with a genuine OEM part restores correct pressure control and protects the rest of the drivetrain.
Part Details
| Part Number | 5100011626 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pressure Relief Valve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD18-80 Tandem Roller | RD18-80 | 5100011382, 5100047360, 5100055774 |
| RD18-100 Tandem Roller | RD18-100 | 5100011383, 5100047361, 5100055775 |
| RD18-100 C Tandem Roller | RD18-100 C | 5100011384 |
| Single drum soil compactor RC50 | RC50 | 5100021295, 5100047388 |
| Single drum soil compactor RC50P | RC50P | 5100021296 |
| RD18-80 Tandem Roller | RD18-80 US | 5100027572 |
| RD18-100 Tandem Roller | RD18-100 US | 5100027573 |
| RD18-100 C Tandem Roller | RD18-100 C US | 5100027574 |
| RC50 Single Drum Soil Compactor | RC50 US | 5100027575, 5100047413 |
| RC50p Single Drum Soil Compactor | RC50p US | 5100027576, 5100047414 |
| Vibration Roller | RD18-80 SE | 5100044988 |
| Vibration Roller | RD18-100 SE | 5100044989 |
| RD 18-100 C | RD18-100c | 5100047362, 5100055776 |
| Vibration Roller | RD18-100c 3 | 5100047363 |
| RC50p | RC50p | 5100047389 |
| RD18-80.3 | RD18-80.3 | 5100055946 |
| RD18 | RD18-100.3 | 5100055947 |
| RD18-100c.3 | RD18-100c.3 | 5100055948 |
| RC50 | RC50 DPF CAB | 5100064255 |
| RC50 | RC50 DPF ROPS | 5100064256 |
| RC50p | RC50p DPF CAB | 5100064257 |
| RC50p | RC50p DPF ROPS | 5100064258 |
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.
