The Wacker Neuson O-Ring Seal is a genuine OEM component designed for the RD40-130 and RD45-140 tandem roller series. As a factory-authorized part, it meets the same material and dimensional standards as the original seal fitted at production, ensuring a consistent, leak-free installation every time. This O-Ring Seal is compatible across an extensive range of RD40-130 and RD45-140 variants, including standard, C, O, and.3 suffix configurations. Keeping a genuine OEM replacement on hand means less time troubleshooting fluid loss and more time running your machine at full capacity.
Key Features
- Genuine OEM Sealing Material — Manufactured to the same elastomer grade and compression tolerance as the original, maintaining a secure, fluid-tight seal under the operating pressures of the RD series rollers.
- Drop-In Replacement — Dimensionally identical to the factory-installed part, so the O-Ring Seal seats correctly in its groove without trimming, shimming, or adaptation.
- Broad RD Series Coverage — Fits RD40-130 and RD45-140 tandem rollers across standard, C, O, and .3 variant builds, covering a wide production run of Wacker Neuson compaction equipment.
- Prevents Fluid Leakage — A failed or degraded O-ring allows hydraulic fluid or lubricant to bypass the seal, leading to contamination, pressure loss, and accelerated wear on surrounding components.
- Authorized Parts Traceability — Sourced directly through Wacker Neuson's OEM supply chain, so the part number, material spec, and fitment are fully verifiable against the original equipment documentation.
An O-ring seal creates a pressure-tight barrier between two mating surfaces or components, preventing hydraulic fluid, oil, or other fluids from escaping the system. In compaction equipment like the RD40-130 and RD45-140 tandem rollers, these seals are critical to maintaining hydraulic integrity — when an O-ring degrades, hardens, or takes a compression set, it loses its ability to conform to the sealing surface, allowing fluid to bypass and pressure to drop. Left unaddressed, a failing O-ring can compromise hydraulic performance, cause contamination of adjacent systems, and lead to more costly component repairs down the line.
Part Details
| Part Number | 5100012069 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring Seal |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD40-130 Tandem Roller | RD40-130 | 5100011391, 5100047382 |
| RD45-140 Tandem Roller | RD45-140 | 5100011392, 5100047383 |
| RD40-130 C Tandem Roller | RD40-130 C | 5100011393 |
| RD45-140 C Tandem Roller | RD45-140 C | 5100011394 |
| RD40-130 O | RD40-130 O | 5100011395 |
| RD45-140 O Tandem Roller | RD45-140 O | 5100011396 |
| RD40-130c | RD40-130c | 5100047384 |
| RD45-140c | RD45-140c | 5100047385 |
| RD40-130o | RD40-130o | 5100047386 |
| RD45-140o | RD45-140o | 5100047387 |
| RD40-130.3 | RD40-130.3 | 5100047395 |
| RD45-140.3 | RD45-140.3 | 5100047396 |
| RD40-130c.3 | RD40-130c.3 | 5100047397 |
| RD45-140c.3 | RD45-140c.3 | 5100047398 |
| RD40-130o.3 | RD40-130o.3 | 5100047399 |
| RD45-140o.3 | RD45-140o.3 | 5100047400 |
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.
