The Wacker Neuson Filler Cap is a genuine OEM component designed for RC110 and RC110P series roller compactors, including US ROPS and US CAB configurations. As a direct OEM replacement, this filler cap is manufactured to the same standards as the original part, ensuring a proper seal and consistent fit across all covered variants. Confirmed fitment spans the RC110, RC110P, Compactor RC110 US ROPS, Compactor RC110P US ROPS, Compactor RC110 US CAB, and Compactor RC110P US CAB models. When you need an exact match for your Wacker Neuson compactor, part number is the correct, authorized choice.
Key Features
- OEM Sealing Integrity — Manufactured to original sealing tolerances, ensuring the cap closes and seats correctly to prevent fluid contamination or loss.
- Drop-In Replacement — Threads directly onto the original filler neck with no machining or adaptation — same thread profile and cap diameter as the factory part.
- Broad RC110 Series Coverage — Fits RC110 and RC110P compactors across standard, US ROPS, and US CAB configurations, covering six distinct machine variants under a single part number.
- Protects Fluid Quality — A correctly seated filler cap keeps dirt, debris, and moisture out of the fluid reservoir, protecting internal components from contamination-related wear.
- Fuel and Fluid System Safety — A failed or improperly fitting filler cap can allow flammable fluids or hydraulic fluid to escape during operation — using the correct OEM replacement maintains safe, closed-system operation.
A filler cap seals the fill port on a fluid reservoir — whether for fuel, hydraulic fluid, or engine oil — preventing contamination from dirt, water, and debris entering the system during operation or storage. On roller compactors like the RC110 series, a properly sealing cap also maintains the correct internal pressure environment for the fluid system. When a filler cap cracks, warps, or loses its sealing ability, it exposes the fluid to outside contaminants, which can accelerate wear on pumps, seals, and internal components and potentially lead to more significant mechanical failures over time.
Part Details
| Part Number | 5100034928 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Filler Cap |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RC110 | RC110 | 5100030674 |
| RC110P | RC110P | 5100030675 |
| Compactor RC110 US Rops | RC110 US Rops | 5100056461 |
| Compactor RC110p US Rops | RC110p US Rops | 5100056462 |
| Compactor RC110 US CAB | RC110 US CAB | 5100064270 |
| Compactor RC110p US CAB | RC110p US CAB | 5100064271 |
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.
