The Wacker Neuson Needle Valve is a genuine OEM component designed for a range of Wacker Neuson equipment including PTS4V centrifugal trash pumps, GPS8500 and GPS9700 portable generators, GS8.5V and GS9.7V portable generators, and the RD11V hydrostatic double drum vibratory roller. As a factory-original part, the is manufactured to the exact tolerances required for proper fuel metering and carburetor function across every compatible model. Confirm your model number before ordering to ensure a direct match with your machine's fuel system configuration.
Key Features
- Genuine OEM Fuel Metering Accuracy — Factory-original construction ensures the needle tip seats and seals to the correct taper and material spec, maintaining accurate fuel flow into the carburetor float chamber.
- Direct Carburetor Drop-In — Engineered to the same dimensions as the original, the 5000118489 installs into the carburetor needle seat without adjustment or rework.
- Broad Model Coverage — A single OEM part number serves PTS4V trash pumps, GPS8500 and GPS9700 portable generators, GS8.5V and GS9.7V generators, and the RD11V tandem roller, making it a practical stock item for mixed Wacker Neuson fleets.
- Consistent Fuel Delivery Under Load — A properly seated needle valve maintains a stable fuel level in the float bowl, supporting smooth, consistent engine performance across varying throttle demands.
- Fuel System Integrity — A worn or damaged needle valve can allow fuel to flood the carburetor or starve the engine of fuel entirely. Replacing it with the correct OEM part restores a proper seal and prevents fuel leaks within the carburetor assembly.
The needle valve is a small but critical component inside the carburetor's float chamber. It works together with the float to regulate fuel flow into the bowl — when the fuel reaches the correct level, the float rises and pushes the needle valve closed, cutting off the incoming fuel supply. When the engine draws fuel down, the float drops and the valve opens to refill the bowl. A needle valve that is worn, swollen from fuel exposure, or incorrectly seated will cause the engine to run rich, flood, or starve for fuel, leading to hard starting, erratic idling, or engine shutdown under load.
Part Details
| Part Number | 5000118489 |
|---|---|
| Old Part Number | 0118489 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Needle Valve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 100mm/4in Centrifugal Trash Pu mp | PTS4V | 5000007691, 5000007683 |
| Portable Generator with Electr ic Start | GPS9700 | 5000008287, 5000620264 |
| Portable Generator with Electr ic Start | GPS8500 | 5000008286 |
| Hydrostatic Double Drum Vibrat ory Roller | RD11V | 5000007694 |
| Portable Generator with Electr ic Start | GS8.5V | 5000007661 |
| Portable Generator with Electr ic Start | GS9.7V | 5000007662 |
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.
