The Wacker Neuson 5100012099 is a genuine OEM O-Ring Seal designed for the RD18 series tandem rollers, including the RD18-80, RD18-100, RD18-100C, and their regional and generational variants. Sourced directly from Wacker Neuson, this seal matches the original specification to maintain system integrity across the hydraulic and fluid circuits on your roller. It fits the full range of RD18 configurations — including US and SE market machines — making it the correct replacement regardless of which RD18 variant is in your fleet.
Key Features
- Genuine OEM Sealing Integrity — Manufactured to the exact material grade and compression profile specified by Wacker Neuson, ensuring consistent sealing performance in hydraulic and fluid system applications on the RD18 tandem roller.
- Drop-In Replacement — Dimensioned to seat correctly in the original groove without modification, restoring the sealed joint to its as-built condition.
- Broad RD18 Series Coverage — Confirmed fitment across RD18-80, RD18-80.3, RD18-100, RD18-100.3, RD18-100C, and RD18-100C.3 tandem rollers, including US and SE regional variants.
- Leak Prevention — A correctly installed O-Ring Seal prevents fluid loss at critical joints, keeping system pressure stable and protecting surrounding components from contamination or damage.
- Fluid System Safety — Hydraulic and fuel system leaks on compaction equipment present a fire and contamination risk; replacing a worn or extruded O-Ring Seal restores the integrity of the sealed connection and keeps the machine operating safely.
An O-Ring Seal is a circular elastomeric seal seated in a machined groove at a joint or port, compressed between two mating surfaces to prevent fluid or air from escaping. On a tandem roller like the RD18 series, O-Ring Seals are used throughout the hydraulic drive circuit, vibration system, and fluid connections, where they maintain pressure and keep contaminants out. When an O-Ring Seal becomes hardened, cracked, or extruded from its groove, the result is a visible fluid leak, loss of hydraulic pressure, or ingress of dirt — any of which can lead to accelerated wear or component failure if not addressed promptly.
Part Details
| Part Number | 5100012099 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring Seal |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD18-80 | RD18-80 | 5100047360, 5100011382, 5100055774 |
| RD18-100c.3 | RD18-100c.3 | 5100055948 |
| RD18 | RD18-100.3 | 5100055947 |
| Vibration Roller | RD18-100c 3 | 5100047363 |
| RD18-100 | RD18-100 | 5100055775, 5100011383, 5100047361 |
| RD 18-100 C | RD18-100c | 5100047362, 5100055776 |
| RD18-100 Tandem Roller | RD18-100 US | 5100027573 |
| Vibration Roller | RD18-100 SE | 5100044989 |
| RD18-80 Tandem Roller | RD18-80 US | 5100027572 |
| RD18-100 C Tandem Roller | RD18-100 C US | 5100027574 |
| Vibration Roller | RD18-80 SE | 5100044988 |
| RD18-100 C Tandem Roller | RD18-100 C | 5100011384 |
| RD18-80.3 | RD18-80.3 | 5100055946 |
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.
