The Wacker Neuson Float Ball is a genuine OEM component designed for WPP1540, WPP1550, and WPU1550 series reversible plate compactors. Sourced directly from Wacker Neuson, this part carries the same specifications as the original, ensuring a direct, accurate replacement with no guesswork. It is confirmed compatible across a wide range of models in the WPP and WPU series, including the WPP1540A, WPP1540W, WPP1550A, WPP1550W, WPU1550A, and associated variants.
Key Features
- Genuine OEM Buoyancy Rating — Manufactured to the exact float characteristics required for proper fuel level regulation in Wacker Neuson carbureted plate compactor engines.
- Drop-In Carburetor Fit — Designed to seat correctly within the carburetor float bowl, restoring the original fuel metering geometry without adjustment or modification.
- Broad WPP and WPU Series Coverage — Fits WPP1540A, WPP1540W, WPP1540Aw, WPP1540Ww, WPP1550A, WPP1550W, WPP1550Aw, WPP1550Ww, WPU1550A, WPU1550Aw, and WPU1550A-L reversible plate compactors.
- Consistent Fuel Delivery — A correctly functioning float ball maintains the proper fuel level in the float bowl, supporting smooth engine starts, steady idle, and consistent throttle response under load.
- Fuel System Integrity — A degraded or damaged float ball can cause flooding, fuel overflow, or fuel starvation — replacing it with a genuine OEM part restores correct carburetor function and protects against unplanned engine issues.
The float ball sits inside the carburetor float bowl and regulates how much fuel enters the carburetor by rising and falling with the fuel level — much like a valve. When the fuel reaches the correct level, the float rises and cuts off the supply; when fuel is consumed, it drops and allows more to enter. If the float ball becomes waterlogged, cracked, or corroded, it loses its ability to control this cycle accurately, leading to rich running, engine flooding, hard starts, or fuel starvation that cuts engine power at the worst possible time.
Part Details
| Part Number | 5000400405 |
|---|---|
| Old Part Number | 0400405 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Float Ball |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| WPU1550A | WPU1550A | 5000630033 |
| WPU1550Aw | WPU1550Aw | 5000630034 |
| WPP 1550Aw | WPP1550Aw | 5000630030 |
| WPP 1540A | WPP1540A | 5000630025 |
| WPP 1540W | WPP1540W | 5000630027 |
| WPP 1550A | WPP1550A | 5000630029 |
| WPP 1550W | WPP1550W | 5000630031 |
| WPP 1550Ww | WPP1550Ww | 5000630032 |
| WPP 1540Aw | WPP1540Aw | 5000630026 |
| WPP 1540Ww | WPP1540Ww | 5000630028 |
| Reversible Plates | WPU 1550A-L | 5000630124 |
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.
