The Wacker Neuson Valve Cover Seal is a genuine OEM component designed for the RD40-130 and RD45-140 series tandem rollers. As a direct OEM replacement, this seal is manufactured to the same material and compression specifications as the original part, ensuring a proper fit at the valve cover interface right out of the box. Fitment covers a wide range of RD-series configurations, including standard, C, O, and.3 variants across both the RD40-130 and RD45-140 lines. When it's time to service your roller, sourcing the correct OEM seal from Wacker Neuson means the job gets done right the first time.
Key Features
- OEM-Grade Sealing Material — Manufactured to the original compression and material spec, so the seal seats correctly against the valve cover and holds under operating temperatures and pressures.
- Drop-In Valve Cover Fit — Engineered to match the original valve cover groove dimensions on RD-series rollers, requiring no trimming or adaptation during installation.
- Broad RD-Series Coverage — A single part number covers both RD40-130 and RD45-140 configurations, including standard, C (canopy), O, and .3 model variants.
- Prevents Oil Leaks at the Valve Cover — A fresh seal restores the oil-tight barrier at the valve cover, stopping seepage that leads to engine contamination, oil loss, and messy, time-consuming cleanup on site.
- Genuine Wacker Neuson OEM Part — Part number 5100012874 is sourced directly through the Wacker Neuson OEM supply chain, so you can be confident you're installing the correct component for your machine.
The valve cover seal forms an oil-tight barrier between the valve cover and the engine cylinder head, preventing engine oil from escaping around the top of the engine. On compaction equipment like the RD40-130 and RD45-140 tandem rollers, vibration and heat cycles put constant stress on this seal, causing it to harden, compress, or crack over time. When the seal fails, oil leaks out onto the engine exterior, creating a fire risk, accelerating engine wear from reduced oil levels, and signaling that immediate service is needed to avoid more serious engine damage.
Part Details
| Part Number | 5100012874 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Valve Cover Seal |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD40-130 Tandem Roller | RD40-130 | 5100011391 |
| RD45-140 Tandem Roller | RD45-140 | 5100011392 |
| 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 |
| RD40-130.3 | 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.
