The Wacker Neuson is a genuine OEM O-Ring designed for a wide range of Wacker Neuson compaction equipment, including DPU reversible vibratory plates, DPS single-direction vibratory plates, and the RS800H single drum vibratory roller. As a genuine OEM part, the is manufactured to the exact material and dimensional specifications required for proper sealing performance in these machines. Confirmed fitment spans multiple DPU and DPS series models, making this a versatile replacement for operators running mixed fleets. Sourcing the correct O-Ring by part number ensures a proper seal and helps prevent fluid loss or contamination that can lead to component damage.
Key Features
- Genuine OEM Sealing Material — Manufactured to the exact compound and durometer specification required for hydraulic or fluid-system sealing in Wacker Neuson compaction equipment.
- Drop-In Ring Replacement — Sized to seat correctly in the original groove without stretching or trimming, maintaining full sealing contact around the mating surfaces.
- Broad Compaction Fleet Coverage — Fits DPU 2870, DPU 2440H, DPU 2950, DPU 2960, DPU 2970, DPS3050, DPS3060, and RS800H models, covering reversible plates, single-direction plates, and a single drum roller.
- Leak Prevention Where It Counts — A correctly seated O-Ring maintains fluid containment and system pressure; a degraded or missing ring can allow fluid ingress or loss, accelerating wear on surrounding components.
- Fluid System Integrity — Using the correct OEM-spec O-Ring is especially important in hydraulic and fuel-adjacent circuits where material compatibility with system fluids directly affects seal longevity.
An O-Ring is a circular elastomeric seal fitted into a machined groove between two mating surfaces or around a port, shaft, or fitting. Its role is to prevent fluid — whether hydraulic oil, fuel, or coolant — from leaking past a joint under pressure or during operation. In vibratory compaction equipment, O-Rings are commonly found in hydraulic circuits, valve bodies, and pump connections where they must maintain a consistent seal despite vibration and heat cycling. When an O-Ring hardens, cracks, or is otherwise damaged, the seal it provides breaks down, leading to fluid leaks that can reduce system pressure, contaminate surrounding components, and ultimately cause more extensive mechanical failures if not addressed promptly.
Part Details
| Part Number | 5004101990 |
|---|---|
| Old Part Number | 4101990 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Drum Vibratory Roller | RS800H | 5000006583 |
| Single Direction Vibratory Pla te, 30kN, 50cm/20in | DPS3050 | 5000006962 |
| Single Direction Vibratory Pla te, 30kN, 60cm/24in | DPS3060 | 5000006963, 5000008422 |
| Reversible Vibratory Plate, 28 kN, 70cm/28in | DPU 2870 | 5000007289 |
| Reversible Vibratory Plate, 24 kN, 40cm/16in | DPU 2440H | 5000007870 |
| Reversible Vibratory Plate, 29 kN, 70cm/28in | DPU 2970 | 5000007880 |
| Reversible Vibratory Plate, 29 kN, 50cm/20in | DPU 2950 | 5000007881, 5000007884 |
| Vibration Plate DPU 2960 | DPU 2960 | 5000007883 |
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.
