The Wacker Neuson Piston is a genuine OEM component designed for the RD25 Hydrostatic Double Drum Vibratory Roller. Sourced directly from Wacker Neuson, this piston meets the exact engineering tolerances specified for the RD25 platform, ensuring proper fit within the hydraulic or engine assembly it serves. Confirmed fitment covers RD25 machines and is verified against OEM parts documentation for added confidence at checkout.
Key Features
- Genuine OEM Dimensional Accuracy — Manufactured to Wacker Neuson's original specifications, delivering the precise bore tolerances and surface finish that a piston demands for correct sealing and stroke performance.
- Drop-In Replacement for RD25 — Engineered to seat correctly within the existing cylinder bore of the RD25, aligning with all original ports, rings, and connecting hardware without rework.
- RD25 Series Compatibility — Verified fitment for RD25 Hydrostatic Double Drum Vibratory Rollers, covering multiple machine configurations within the RD25 platform.
- Sustained Compaction Output — A correctly fitted piston maintains the compression or hydraulic pressure needed to keep the RD25's drums delivering consistent compaction force on asphalt and soil surfaces.
- Pressure Integrity Matters — A worn or damaged piston allows blow-by or pressure loss, which can cause erratic drum vibration, reduced compaction depth, or engine performance issues — making prompt replacement critical on production paving and compaction jobs.
The piston is a core reciprocating component found in either the engine or hydraulic pump assembly of the RD25 tandem roller. In an engine application, it converts combustion pressure into crankshaft rotation, directly powering the machine's drive and vibratory systems. In a hydraulic pump context, it generates the fluid pressure that drives the hydrostatic transmission and drum vibration circuits. When a piston wears, cracks, or loses its sealing integrity, the result is reduced power output, loss of vibration amplitude, or hydraulic pressure drop — all of which compromise compaction quality and can lead to more extensive drivetrain damage if left unaddressed.
Part Details
| Part Number | 5000113988 |
|---|---|
| Old Part Number | 0113988 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Double Drum Vibrat ory Roller | RD25 | 5000008058, 5000009317 |
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.
