The Wacker Neuson Fuel Tank Cap is a genuine OEM Fuel Tank Cap designed for the GPi3200, GPSi3200, GPi4300, and GPSi4300 portable inverter generator series. As a direct OEM part, is manufactured to the exact specifications of the original component, ensuring a correct, secure fit on your Wacker Neuson inverter generator. Whether you're replacing a cracked, missing, or leaking cap, this is the correct part for the job. Cross-reference your model number against the fitment list to confirm compatibility before ordering.
Key Features
- OEM Seal Integrity — Manufactured to match the original cap's thread pitch and sealing surface, maintaining a fuel-tight closure that prevents leaks and fuel vapor escape.
- Drop-In Fitment — Threads directly onto the factory fuel tank neck with no trimming or modification; replaces the original cap on all listed GPi and GPSi series units.
- Broad Generator Compatibility — Confirmed fitment across the GPi3200, GPSi3200, GPi4300, and GPSi4300 inverter generator lines, covering both standard and parallel-capable models.
- Fuel System Protection — A properly sealing tank cap keeps contaminants, moisture, and debris out of the fuel supply, protecting the carburetor and fuel system components from premature wear.
- Fuel Safety Compliance — A secure, OEM-spec cap prevents fuel spillage during transport and operation, reducing the risk of fire hazard on the worksite or during storage.
The fuel tank cap seals the opening of the generator's fuel tank, preventing fuel from spilling during transport and keeping contaminants such as dust, debris, and moisture out of the tank. Most caps also incorporate a small vent to allow pressure equalization as fuel is consumed — without this venting function, a vacuum can form inside the tank and restrict fuel flow to the engine, causing the generator to run lean, surge, or shut down. A cracked, stripped, or missing cap should be replaced promptly to maintain safe operation and protect the fuel system.
Part Details
| Part Number | 5000226021 |
|---|---|
| Old Part Number | 0226021 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fuel Tank Cap |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Portable Inverter Generator | GPi3200 | 5000620779, 5000620781 |
| Portable Inverter Generator | GPSi3200 | 5000620780, 5000620961, 5000620936 |
| GPi4300 | GPi4300 | 5000620962, 5000620782, 5000620784 |
| GPSi4300 | GPSi4300 | 5000620963, 5000620783, 5000620937 |
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.
