The Wacker Neuson 5100011925 Float is a genuine OEM component designed for the RD18-80, RD18-100, and RD18-100 C series tandem rollers. As a direct OEM part, the 5100011925 is manufactured to the exact specifications of the original, ensuring proper fuel level regulation within the carburetor assembly. This float is confirmed to fit across the full RD18 tandem roller family, covering US, SE, and international variants in both standard and combination configurations.
Key Features
- Genuine OEM Construction — Produced to the same material and dimensional tolerances as the original float, ensuring correct buoyancy and fuel metering behavior in the carburetor bowl.
- Drop-In Compatibility — Engineered to seat directly into the existing carburetor bowl without reworking or adapting surrounding fuel system components.
- Broad RD18 Series Coverage — Fits RD18-80, RD18-100, and RD18-100 C tandem rollers across US, SE, and standard variants, including .3-series and combination-drum configurations.
- Consistent Fuel Delivery — A correctly functioning float maintains the precise fuel level needed for steady engine operation during compaction passes — a worn or saturated float causes rough running, flooding, or failure to start.
- Fuel System Integrity — Correct float weight and seal are critical to preventing carburetor flooding, which can introduce raw fuel into the engine and create an unsafe operating condition.
The float sits inside the carburetor fuel bowl and regulates how much fuel enters the carb by rising and falling with the fuel level — much like a float valve in a tank. When the fuel reaches the correct level, the float rises and shuts off the incoming fuel supply; as the engine consumes fuel, the float drops and allows more in. If the float becomes saturated, cracked, or damaged, it loses buoyancy and can no longer maintain the correct fuel level, leading to an overly rich mixture, flooding, hard starting, or unstable engine speed. On a tandem roller like the RD18 series, where consistent engine output directly affects drum vibration and compaction performance, a failed float can disrupt an entire paving or compaction operation.
Part Details
| Part Number | 5100011925 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Float |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD18-80 Tandem Roller | RD18-80 | 5100011382, 5100047360, 5100055774 |
| RD18-100 Tandem Roller | RD18-100 US | 5100027573 |
| RD18-100 C Tandem Roller | RD18-100 C US | 5100027574 |
| RD18-100c.3 | RD18-100c.3 | 5100055948 |
| Vibration Roller | RD18-100c 3 | 5100047363 |
| RD18-80 Tandem Roller | RD18-80 US | 5100027572 |
| RD18-80.3 | RD18-80.3 | 5100055946 |
| RD18-100c | RD18-100c | 5100055776, 5100047362 |
| RD18 | RD18-100.3 | 5100055947 |
| Vibration Roller | RD18-100 SE | 5100044989 |
| RD18-100 Tandem Roller | RD18-100 | 5100011383, 5100047361, 5100055775 |
| 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.
