The Wacker Neuson is a genuine OEM O-Ring designed for the RD27-100 and RD27-120 series hydrostatic vibratory tandem rollers, including standard and traction control configurations. As a factory-sourced component, this O-Ring is manufactured to the exact material and dimensional specifications required by Wacker Neuson for proper sealing performance in the RD27 platform. Keeping the correct O-Ring in service is critical to maintaining hydraulic and fluid circuit integrity on these machines. Verify your machine number against the fitment list before ordering to ensure this is the correct sealing component for your roller.
Key Features
- Genuine OEM Sealing Material — Manufactured to Wacker Neuson's exact compound and durometer specification, ensuring the O-Ring compresses and seats correctly under operating pressures found in the RD27 hydraulic system.
- Drop-In Replacement — Matches the original groove dimensions on RD27-100 and RD27-120 assemblies, so the O-Ring seats without modification to the housing or mating surfaces.
- Broad RD27 Series Coverage — Fits multiple RD27-100 and RD27-120 machine configurations, including both standard hydrostatic and traction control variants across a wide range of serial number ranges.
- Protects Hydraulic Circuit Integrity — A correctly seated O-Ring prevents fluid bypass and pressure loss in the hydraulic system, keeping roller drive response and vibration output performing as intended.
- Fluid System Safety — A degraded or incorrectly sized O-Ring in a hydraulic circuit can lead to uncontrolled fluid leaks and pressure drop; using the correct OEM part mitigates this risk on a machine operating under continuous load.
An O-Ring is a circular elastomeric seal designed to sit in a machined groove and compress between two mating surfaces, blocking the passage of fluid or hydraulic oil under pressure. In a tandem roller like the RD27 series, O-Rings are used throughout the hydraulic drive and vibration circuits, where maintaining consistent pressure is essential for even compaction force and controlled propulsion. When an O-Ring hardens, cracks, or is damaged, it loses its ability to form a complete seal — resulting in fluid leaks, pressure drop, and potential damage to downstream hydraulic components.
Part Details
| Part Number | 5000161935 |
|---|---|
| Old Part Number | 0161935 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydrostatic Vibratory Roller | RD27-100 | 5000620393, 5000620508, 5000620510, 5000620512, 5000620395, 5200009322, 5000620007, 5000620037 |
| Hydrostatic Vibratory Roller | RD27-120 | 5000620394, 5000620509, 5000620511, 5000620513, 5000620396, 5200009323, 5000009469, 5000620038 |
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.
