The Wacker Neuson Valve Block is a genuine OEM component designed for the RD40-130 and RD45-140 tandem roller series, including standard, C, O, DPF, and US market configurations. Sourced directly from Wacker Neuson, this valve block meets the exact specifications of the original part it replaces, ensuring consistent hydraulic system performance across the full range of compatible machines. Fitment spans numerous serial-specific variants of the RD40-130 and RD45-140 platforms, making it the correct choice for operators maintaining or rebuilding these compaction rollers.
Key Features
- Genuine OEM Hydraulic Precision — Manufactured to Wacker Neuson's original hydraulic flow and pressure specifications, ensuring the valve block routes and regulates fluid correctly within the system.
- Direct-Fit Replacement — Engineered to install in the existing valve block position with original port sizing and mounting configuration, requiring no machining or adaptation.
- Broad RD-Series Compatibility — Verified fitment across RD40-130 and RD45-140 variants, including standard, C, O, DPF, and US-spec models across multiple production series.
- Consistent Hydraulic Circuit Control — A correctly functioning valve block maintains proper directional control and pressure regulation, which is critical to smooth drum engagement and compaction output on tandem rollers.
- Hydraulic System Integrity — A worn or failed valve block can cause erratic drum behavior, pressure loss, or uncontrolled hydraulic flow; replacing it with a genuine OEM part restores full system integrity.
A valve block is a central hydraulic control component that directs pressurized fluid to the correct circuits within the machine's hydraulic system. On tandem rollers like the RD40-130 and RD45-140 series, it manages the flow and pressure that drives drum movement, steering response, and other hydraulic functions essential to compaction performance. When a valve block deteriorates or fails, operators may experience inconsistent drum control, sluggish response, or hydraulic pressure faults that compromise both productivity and machine safety.
Part Details
| Part Number | 5100012970 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Valve Block |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD40-130 Tandem Roller | RD40-130 | 5100011391, 5100047382 |
| RD45-140 Tandem Roller | RD45-140 | 5100011392, 5100047383 |
| 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 |
| RD40-130c | RD40-130c | 5100047384 |
| RD45-140c | RD45-140c | 5100047385 |
| RD40-130o | RD40-130o | 5100047386 |
| RD45-140o | RD45-140o | 5100047387 |
| 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 |
| RD40-130 DPF | RD40-130 DPF | 5100055777 |
| RD45-140 DPF | RD45-140 DPF | 5100055778 |
| RD40-130c DPF | RD40-130c DPF | 5100055779 |
| RD45-140c DPF | RD45-140c DPF | 5100055780 |
| RD40-130o DPF | RD40-130o DPF | 5100055781 |
| RD45-140o DPF | RD45-140o DPF | 5100055782 |
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.
