The Wacker Neuson 5100011865 is a genuine OEM O-Ring Seal designed for the RD-series tandem roller lineup, covering walk-behind and ride-on articulated models across the RD18, RD24, RD27, RD28, RD40, and RD45 families. As a factory-sourced component, part number 5100011865 is manufactured to the exact material composition and dimensional tolerances specified for these machines. Compatibility spans a wide range of configurations including smooth drum, combination drum, DPF-equipped, and electric hybrid variants across multiple regional specifications. Always cross-reference your machine's model number before ordering to confirm the correct application.
Key Features
- Genuine OEM Material Integrity — Produced from the exact elastomer compound specified by Wacker Neuson, ensuring the correct compression set and chemical resistance for hydraulic and fluid system applications in tandem rollers.
- Drop-In Dimensional Accuracy — Manufactured to the precise cross-section diameter and inner diameter required for the sealing groove on these RD-series machines, seating correctly without stretching or binding during installation.
- Broad RD-Series Coverage — A single part number covering RD18, RD24, RD27, RD28, RD40, and RD45 variants, including smooth drum, open drum, combination drum, DPF, and electric hybrid configurations across US and international specifications.
- Leak Prevention for Consistent Compaction Output — A correctly seated O-Ring Seal maintains fluid pressure integrity within the roller's hydraulic or vibration circuit, keeping compaction force consistent across the drum. A deteriorated seal can cause fluid weeping, pressure loss, and uneven drum compaction.
- Fluid System Safety Compliance — In hydraulic circuits, a failed O-Ring Seal can result in uncontrolled fluid release under pressure. Using the OEM-specified seal grade ensures the joint holds rated working pressure and meets the machine's original safety design intent.
An O-Ring Seal is a circular elastomeric gasket fitted into a machined groove to create a pressure-tight boundary between two mating surfaces or within a fluid-carrying assembly. In tandem rollers such as the Wacker Neuson RD series, O-Ring Seals are used throughout the hydraulic drive and vibration systems to prevent fluid loss and maintain operating pressure. When an O-Ring hardens, cracks, or takes a permanent compression set over time, the seal degrades, allowing fluid to bypass the joint — which can lead to erratic drum behavior, hydraulic pressure drop, and potential system damage if left unaddressed.
Part Details
| Part Number | 5100011865 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring Seal |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD45-140 O Tandem Roller | RD45-140O US | 5100021806 |
| RD45-140 O Tandem Roller | RD45-140 O | 5100011396 |
| RD28-120 Tandem Roller | RD28-120 US | 5100021756 |
| RD24-100c | RD24-100c | 5100047376 |
| RD45-140o DPF | RD45-140o DPF | 5100055782 |
| RD18-80 | RD18-80 | 5100047360, 5100011382, 5100055774 |
| RD24-100 C Tandem Roller | RD24-100C US | 5100021757 |
| RD45-140 C Tandem Roller | RD45-140C US | 5100021804 |
| RD45-140 Tandem Roller | RD45-140 US | 5100021802 |
| RD40-130 O Tandem Roller | RD40-130O US | 5100021805 |
| RD40-130.3 | RD40-130.3 | 5100047395 |
| RD24e-100o | RD24-100oe | 5100066735 |
| RD24-100 DPF | RD24-100 DPF | 5100047380 |
| RD18-100c.3 | RD18-100c.3 | 5100055948 |
| RD40-130c | RD40-130c | 5100047384 |
| RD28-120 | RD28-120 | 5100047375 |
| RD18 | RD18-100.3 | 5100055947 |
| Vibration Roller | RD18-100c 3 | 5100047363 |
| RD40-130 O | RD40-130 O | 5100011395 |
| RD28-120 O Tandem Roller | RD28-120O US | 5100021800 |
| RD45-140o.3 | RD45-140o.3 | 5100047400 |
| RD 24-100.3 | RD 24-100.3 | 5100032197 |
| RD28-120c | RD28-120c | 5100047377 |
| RD40-130 Tandem Roller | RD40-130 | 5100011391, 5100047382 |
| RD45-140 | RD45-140 | 5100047383, 5100011392 |
| RD27-120 Tandem Roller | RD27-120 | 5100011386 |
| RD18-100 | RD18-100 | 5100055775, 5100011383, 5100047361 |
| RD28-120 C Tandem Roller | RD28-120C US | 5100021758 |
| RD27-120 | RD 27-120.3 | 5100032198 |
| RD28e-120 | RD28-120e | 5100066732 |
| RD27-120c | RD27-120c.3 | 5100047371 |
| RD45-140c.3 | RD45-140c.3 | 5100047398 |
| RD28e-120o | RD28-120oe | 5100066736 |
| RD40-130 C Tandem Roller | RD40-130 C | 5100011393 |
| RD28-120c DPF | RD28-120c DPF | 5100047392 |
| RD40-130 DPF | RD40-130 DPF | 5100055777 |
| RD 18-100 C | RD18-100c | 5100047362, 5100055776 |
| RD24e-100c | RD24-100ce | 5100066733 |
| RD40-130o.3 | RD40-130o.3 | 5100047399 |
| RD45-140.3 | RD45-140.3 | 5100047396 |
| RD27-120o | RD27-120o.3 | 5100047373 |
| RD40-130o DPF | RD40-130o DPF | 5100055781 |
| RD24-100c.3 | RD24-100c.3 | 5100047370 |
| RD18-100 Tandem Roller | RD18-100 US | 5100027573 |
| RD24-100o.3 | RD24-100o.3 | 5100047372 |
| RD24-100o | RD24-100o | 5100047378 |
| Vibration Roller | RD18-100 SE | 5100044989 |
| RD28e-120c | RD28-120ce | 5100066734 |
| RD40-130o | RD40-130o | 5100047386 |
| RD24-100 C Tandem Rollers | RD24-100 C | 5100011387 |
| RD18-80 Tandem Roller | RD18-80 US | 5100027572 |
| RD28-120o DPF | RD28-120o DPF | 5100047394 |
| RD24-100 Tandem Roller | RD24-100 US | 5100021755 |
| RD45-140c DPF | RD45-140c DPF | 5100055780 |
| RD18-100 C Tandem Roller | RD18-100 C US | 5100027574 |
| RD24e-100 | RD24-100e | 5100066731 |
| RD24-100o DPF | RD24-100o DPF | 5100047393 |
| RD45-140o | RD45-140o | 5100047387 |
| RD40-130c.3 | RD40-130c.3 | 5100047397 |
| RD28-120 DPF | RD28-120 DPF | 5100047390 |
| Vibration Roller | RD18-80 SE | 5100044988 |
| RD40-130 Tandem Roller | RD40-130 US | 5100021801 |
| RD24-100 O Tandem Roller | RD24-100 O | 5100011389 |
| RD45-140 C Tandem Roller | RD45-140 C | 5100011394 |
| RD40-130 C Tandem Roller | RD40-130C US | 5100021803 |
| RD27-120 O Tandem Roller | RD27-120 O | 5100011390 |
| RD24-100 Tandem Roller | RD24-100 | 5100011385, 5100047374 |
| RD18-100 C Tandem Roller | RD18-100 C | 5100011384 |
| RD24-100 O Tandem Roller | RD24-100O US | 5100021759 |
| RD28-120o | RD28-120o | 5100047379 |
| RD24-100c DPF | RD24-100c DPF | 5100047391 |
| RD40-130c DPF | RD40-130c DPF | 5100055779 |
| RD45-140c | RD45-140c | 5100047385 |
| RD45-140 DPF | RD45-140 DPF | 5100055778 |
| RD18-80.3 | RD18-80.3 | 5100055946 |
| RD27-120 C Tandem Roller | RD27-120 C | 5100011388 |
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.
