The Wacker Neuson Needle Valve is a genuine OEM component designed for the PTS4V and PTS4V(I) centrifugal trash pumps and the GPS9700 portable generator series. As a direct factory replacement, this valve delivers the precise fuel metering your carburetor depends on to maintain consistent engine operation. It fits both the standard PTS4V and the international PTS4V(I) pump configurations, as well as all GPS9700 generator variants including EPA-compliant and premium wheel-kit models. Ordering by part number ensures you receive the exact Wacker Neuson specification part — no guesswork at installation.
Key Features
- Exact OEM Fuel Metering Spec — Manufactured to Wacker Neuson's precise needle taper and seat tolerances, ensuring correct fuel flow rate through the carburetor circuit.
- Drop-In Carburetor Replacement — Seats directly into the existing carburetor needle valve port on covered models; no re-jetting or carburetor disassembly beyond standard service.
- Broad Series Compatibility — Confirmed fitment across PTS4V and PTS4V(I) 4-inch centrifugal trash pumps and GPS9700 portable generators, covering multiple production runs and configurations.
- Stable Idle and Throttle Response — A correctly functioning needle valve allows the engine to hold a steady idle and respond cleanly to load changes; a worn or damaged valve causes rough running, flooding, or hard starting.
- Fuel System Integrity — Proper needle valve seating prevents uncontrolled fuel delivery that can lead to carburetor flooding, fuel contamination of engine oil, or unintended running conditions.
The needle valve sits inside the carburetor float chamber and controls the flow of fuel from the fuel supply into the bowl. When the float rises to the correct fuel level, it pushes the needle valve closed, stopping fuel entry; as fuel is consumed and the float drops, the valve opens to refill the bowl. This continuous open-and-close cycle keeps the carburetor supplied with the right amount of fuel for any engine speed or load. When the needle valve wears, develops a groove, or fails to seat properly, fuel can overflow the bowl, causing flooding, excessive fuel consumption, and unreliable starting or stalling under load.
Part Details
| Part Number | 5200001355 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Needle Valve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PTS4V Pump | PTS4V | 5000620971, 5100031221 |
| PTS4V(I) Pump | PTS4V(I) | 5000620972 |
| GPS9700V Generator, EPA, w/Wheel Kit | GPS9700 | 5200005042, 5000620973, 5100036768 |
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.
