The Wacker Neuson 5100012495 is a genuine OEM Nonreturn Valve designed for the RD40-130 and RD45-140 series tandem rollers. As a factory-sourced component, it meets the exact specifications of the original part and installs directly in place of the worn or failed valve — no adaptation needed. This part covers a wide range of RD40-130 and RD45-140 configurations, including C, O, US, and.3-suffix variants, making it the correct choice for most machines in these two roller families. Keep a verified part number on hand when ordering to ensure you receive the right valve for your specific unit.
Key Features
- Genuine OEM Construction: — Manufactured to Wacker Neuson's original flow-and-seal specification, ensuring the valve opens and closes at the correct pressure differential for hydraulic circuit integrity.
- Direct Drop-In Replacement: — Matches the original port size and thread specification of the RD40-130 and RD45-140 hydraulic system, allowing straightforward installation without reworking fittings or lines.
- Broad Series Coverage: — Fits RD40-130 and RD45-140 tandem rollers across C, O, US, and .3-suffix model variants, covering both standard and region-specific configurations.
- Hydraulic Circuit Protection: — A functioning nonreturn valve prevents backflow within the hydraulic system, maintaining consistent pressure and protecting downstream components from pressure spikes and reverse-flow damage.
- Safety-Critical Hydraulic Integrity: — On a tandem roller, hydraulic system reliability directly affects drum drive and steering response. A failed nonreturn valve can cause erratic machine behavior; replacing it promptly restores predictable, controlled operation.
A nonreturn valve — also called a check valve — allows hydraulic fluid to flow in one direction only, preventing reverse flow that could destabilize pressure in the circuit or cause uncontrolled movement of hydraulic actuators. In a tandem roller like the RD40-130 and RD45-140, this valve plays a key role in maintaining steady drum drive pressure and protecting the hydraulic pump from backpressure surges. When a nonreturn valve fails or begins to leak past its seat, operators may notice loss of drive power, pressure instability, or irregular compaction behavior — all signs the valve needs immediate attention.
Part Details
| Part Number | 5100012495 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Nonreturn Valve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD40-130c.3 | RD40-130c.3 | 5100047397 |
| RD45-140 C Tandem Roller | RD45-140C US | 5100021804 |
| RD40-130.3 | RD40-130.3 | 5100047395 |
| RD40-130o.3 | RD40-130o.3 | 5100047399 |
| RD40-130 O | RD40-130 O | 5100011395 |
| RD40-130 C Tandem Roller | RD40-130 C | 5100011393 |
| RD45-140c.3 | RD45-140c.3 | 5100047398 |
| RD40-130 C Tandem Roller | RD40-130C US | 5100021803 |
| RD45-140 C Tandem Roller | RD45-140 C | 5100011394 |
| RD45-140 Tandem Roller | RD45-140 US | 5100021802 |
| RD45-140o.3 | RD45-140o.3 | 5100047400 |
| RD45-140 O Tandem Roller | RD45-140 O | 5100011396 |
| RD45-140.3 | RD45-140.3 | 5100047396 |
| RD40-130 O Tandem Roller | RD40-130O US | 5100021805 |
| RD45-140 O Tandem Roller | RD45-140O US | 5100021806 |
| RD45-140 Tandem Roller | RD45-140 | 5100011392 |
| RD40-130 Tandem Roller | RD40-130 US | 5100021801 |
| RD40-130 Tandem Roller | RD40-130 | 5100011391 |
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.
