The Wacker Neuson is a genuine OEM Directional Control Valve designed for the RD40-130 and RD45-140 series tandem rollers, including standard, C, and O variants across multiple production series. As a direct Wacker Neuson OEM part, the is manufactured to the exact specifications of the original component, ensuring a correct fit within the hydraulic circuit without the need for adaptation. This valve is compatible across a broad range of RD40-130 and RD45-140 model variants, making it a versatile stocking part for fleets running multiple configurations of these compaction rollers.
Key Features
- OEM-Spec Valve Tolerancing — Manufactured to original hydraulic pressure and flow ratings, so the valve responds and seals exactly as the circuit demands.
- Direct Drop-In Replacement — Matches the original port configuration and mounting interface of the 5100050680, connecting directly into the existing hydraulic lines without reworking fittings.
- Broad RD Series Fitment — Covers RD40-130 and RD45-140 tandem rollers in standard, C, and O configurations across multiple production series, including .3-suffix models.
- Precise Directional Control Restored — A worn or failed directional control valve causes erratic or unresponsive drum drive behavior; replacing it restores smooth, predictable forward and reverse operation.
- Hydraulic System Integrity — Correct valve seating prevents internal bypass and pressure loss, protecting downstream hydraulic components from the stress of an unregulated circuit.
A directional control valve governs the flow of hydraulic fluid to the drive and steering circuits of a tandem roller, determining which direction pressurized fluid travels through the system at any given moment. By shifting between flow paths, it enables the operator to control forward and reverse drum movement with accuracy and consistency. When this valve wears, sticks, or develops internal leaks, the machine can lose directional response, exhibit sluggish travel, or become difficult to control — conditions that interrupt compaction work and place additional strain on the hydraulic pump and motor.
Part Details
| Part Number | 5100050680 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Directional Control Valve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 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 | RD40-130 | 5100047382 |
| RD45-140 | RD45-140 | 5100047383 |
| 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 |
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.
