The Wacker Neuson Tank Cap is a genuine OEM tank cap designed for the RD18-100 C and RD18-100c series tandem rollers. Sourced directly from Wacker Neuson, this part meets the exact specifications of the original component fitted at the factory. Compatible across multiple RD18-100 configurations — including the RD18-100 C, RD18-100 C US, and RD18-100c.3 — this cap is a direct drop-in replacement that restores proper tank sealing with no guesswork on fitment.
Key Features
- Genuine OEM Seal Integrity — Manufactured to Wacker Neuson's original material and dimensional spec, ensuring the cap forms a correct, consistent seal against the tank opening — critical for preventing fuel or fluid contamination and loss.
- Direct Drop-In Replacement — Threads or seats into the existing tank opening the same way the original does, with no reworking of the tank neck or surrounding hardware required.
- Broad RD18-100 Series Coverage — Confirmed fitment across the RD18-100 C, RD18-100 C US, RD18-100c, RD18-100c.3, and related tandem roller variants.
- Protects Tank Contents — A properly sealing cap keeps moisture, debris, and contaminants out of the tank, protecting fuel quality and extending the service life of downstream components like filters and injectors.
- Fuel System Safety — A failed or ill-fitting cap on a compact roller operating in tight spaces can allow fuel spillage or vapor escape; a correct OEM cap maintains a secure closure under vibration and daily handling.
The tank cap seals the filler opening on the machine's fuel or fluid tank, preventing spillage, contamination, and vapor escape during operation and transport. On a vibratory roller like the RD18-100 series, the cap must maintain a secure seal despite constant vibration — a worn, cracked, or poorly fitting cap can allow fuel to leak or contaminants to enter, leading to engine performance issues or component damage. Replacing a degraded cap with the correct Wacker Neuson 5100013229 restores that sealed barrier and keeps the fuel system operating as intended.
Part Details
| Part Number | 5100013229 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Tank Cap |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD18-100 C Tandem Roller | RD18-100 C | 5100011384 |
| RD18-100 C Tandem Roller | RD18-100 C US | 5100027574 |
| RD 18-100 C | RD18-100c | 5100047362, 5100055776 |
| Vibration Roller | RD18-100c 3 | 5100047363 |
| RD18-100c.3 | RD18-100c.3 | 5100055948 |
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.
