The Wacker Neuson 5100011740 is a genuine OEM O-Ring Seal designed for the RD18 series tandem rollers, including RD18-80 and RD18-100 variants. As a factory-sourced component, it meets the precise dimensional and material tolerances required for correct sealing performance in this roller family. This part is confirmed to fit across a wide range of RD18-80 and RD18-100 configurations, including US and SE market variants, as well as.3 and c-suffix models. Verifying your machine model and serial number before ordering ensures a correct match for your specific unit.
Key Features
- Genuine OEM Sealing Tolerances — Manufactured to the exact diameter, cross-section, and durometer rating specified for this sealing application in the RD18 drivetrain or hydraulic system.
- Drop-In Replacement — Seats into the same groove geometry as the original, with no reworking of mating surfaces required for installation.
- Broad RD18 Series Coverage — Fits RD18-80 and RD18-100 tandem rollers across multiple build revisions, including US, SE, .3, and c-suffix configurations.
- Leak Prevention at the Source — A correctly seated O-Ring Seal maintains system pressure and prevents fluid migration, keeping hydraulic or lubrication circuits functioning as intended.
- Hydraulic System Integrity — On hydraulically driven compaction equipment, a degraded or missing O-Ring Seal can cause pressure loss, erratic vibration control, or propulsion issues — replacing it promptly restores normal operation.
An O-Ring Seal is a precision-molded loop of elastomer that creates a fluid-tight barrier between two mating components — typically a housing bore, shaft, or port connection. In a tandem roller like the RD18 series, O-Ring Seals appear throughout the hydraulic system, vibratory circuit, and drive components, where they prevent oil or fluid from escaping under operating pressure. When an O-Ring degrades, hardens, or is cut during reassembly, it allows fluid to bypass the seal, leading to leaks, loss of hydraulic pressure, or contamination of adjacent systems.
Part Details
| Part Number | 5100011740 |
|---|---|
| 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 |
| RD18-100 | RD18-100 | 5100055775, 5100011383, 5100047361 |
| RD18-100 Tandem Roller | RD18-100 US | 5100027573 |
| Vibration Roller | RD18-100 SE | 5100044989 |
| RD18-80 Tandem Roller | RD18-80 US | 5100027572 |
| Vibration Roller | RD18-80 SE | 5100044988 |
| RD18-100c | RD18-100c | 5100055776 |
| 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.
