The Wacker Neuson 5100013556 is a genuine OEM Filler Cap designed for RC110 single-drum soil compactors and RD18 series tandem rollers, including RD18-80 and RD18-100 variants. As a direct OEM replacement, this cap is manufactured to the exact specifications of the original part, ensuring a proper seal and correct fit every time. It covers a broad range of RC110 and RD18 configurations, including cab, ROPS, padfoot, and US-market models. When your existing filler cap is cracked, lost, or no longer sealing correctly, replacing it with part number 5100013556 restores proper fluid containment and keeps your machine operating to spec.
Key Features
- Genuine OEM Sealing Performance — Manufactured to exact OEM tolerances, this filler cap delivers a consistent, pressure-correct seal specific to Wacker Neuson fluid systems — not a generic approximation.
- Drop-In Installation — Threads directly onto the original filler neck with no modification to the opening, cap retention, or venting arrangement.
- Broad RC110 and RD18 Fitment — Confirmed fit across RC110 smooth and padfoot drum compactors and RD18-80 and RD18-100 tandem roller variants, including cab, ROPS, and US-market configurations.
- Protects Fluid Integrity — A correctly seated filler cap prevents contamination ingress and fluid loss during operation — both common causes of accelerated component wear in compaction equipment.
- Fuel and Fluid System Safety — A failed or missing filler cap on compaction equipment creates a spill and fire hazard in the field; replacing it promptly with the correct OEM part restores safe operating conditions.
A filler cap seals the fluid reservoir opening on the machine, preventing dirt, debris, and moisture from entering the system while retaining fluid under normal operating conditions. On compaction equipment like the RC110 and RD18 series, a compromised cap can allow contaminants into hydraulic or fuel circuits, accelerating wear and leading to costly component damage. A worn, cracked, or missing cap should be replaced immediately to maintain safe and reliable machine operation.
Part Details
| Part Number | 5100013556 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Filler Cap |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RC110 | RC110 | 5100030674 |
| RD18-100 | RD18-100 | 5100055775, 5100011383, 5100047361 |
| Compactor RC110 US CAB | RC110 US CAB | 5100064270 |
| RD18-100c.3 | RD18-100c.3 | 5100055948 |
| RD18 | RD18-100.3 | 5100055947 |
| RD18-100c | RD18-100c | 5100055776, 5100047362 |
| Compactor RC110p US CAB | RC110p US CAB | 5100064271 |
| RC110P | RC110P | 5100030675 |
| Compactor RC110 US Rops | RC110 US Rops | 5100056461 |
| RD18-100 Tandem Roller | RD18-100 US | 5100027573 |
| RD18-80 | RD18-80 | 5100055774, 5100011382, 5100047360 |
| Vibration Roller | RD18-100c 3 | 5100047363 |
| Compactor RC110p US Rops | RC110p US Rops | 5100056462 |
| RD18-80.3 | RD18-80.3 | 5100055946 |
| RD18-80 Tandem Roller | RD18-80 US | 5100027572 |
| Vibration Roller | RD18-100 SE | 5100044989 |
| RD18-100 C Tandem Roller | RD18-100 C US | 5100027574 |
| Vibration Roller | RD18-80 SE | 5100044988 |
| RD18-100 C Tandem Roller | RD18-100 C | 5100011384 |
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.
