The Wacker Neuson Tank Fuel Group Without Fluorination is a genuine OEM component designed for the GP3800A, GP5600A, GP6600A, GPS5600A, GPS6600A, and GP4000 series portable generators. As a direct Wacker Neuson OEM part, the is manufactured to the same standards as the original unit installed at the factory, ensuring a correct fit and proper sealing within the fuel system. This tank assembly is compatible across a wide range of GP series models, including wheel kit and electric start configurations, making it a versatile replacement for fleet operators and service technicians alike. Keep your generator running clean and fuel-tight with this verified OEM replacement.
Key Features
- OEM Fuel Containment Integrity — Constructed to Wacker Neuson's original material and dimensional specifications, ensuring proper seal contact and resistance to fuel permeation over time.
- Direct-Fit Replacement — Mounts using the original hardware points and fuel line connections, so installation follows the same procedure as the factory-fitted tank with no modification to brackets or fittings.
- Broad GP Series Compatibility — Fits GP3800A, GP4000, GP5600A, GP6600A, GPS5600A, and GPS6600A portable generators, including standard, wheel kit, electric start, and CAN GFI variants.
- Fuel System Reliability — A properly seated fuel tank maintains consistent fuel delivery to the carburetor; a cracked, warped, or leaking tank can cause fuel starvation, hard starts, and generator shutdowns under load.
- Fuel Safety Compliance — Replacing a compromised tank with a genuine OEM unit eliminates fuel leak risks that can present fire hazards, particularly important on job sites where generators operate near other equipment and personnel.
The fuel tank on a portable generator stores and supplies gasoline to the engine's carburetor, acting as the primary reservoir that keeps the machine running during operation. A sound tank must hold fuel without seeping or weeping at seams, fittings, or the cap seat — any breach in integrity restricts run time, creates a fire risk, and can introduce air into the fuel line. When a tank cracks, warps from heat exposure, or develops a failed fitting, the generator may run erratically, shut down unexpectedly, or refuse to start; replacing it promptly with a correctly specified unit restores normal operation and safe fuel handling.
Part Details
| Part Number | 5000181640 |
|---|---|
| Old Part Number | 0181640 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Tank Fuel Group Without Fluorination |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Premium Portable Generator | GP4000 | 5000620090, 5000620380 |
| GPS5600A,CAN GFI | GPS5600A | 5000620096, 5000620383 |
| GPS6600A GENERATOR,CAN GFI | GPS6600A | 5000620102, 5000620386 |
| Premium Portable Generator | GP5600A | 5000620094, 5000620095, 5000620381, 5000620382 |
| GP6600A GENERATOR,CAN GFI | GP6600A | 5000620100, 5000620101, 5000620384 |
| Portable Generator | GP3800A | 5000620104, 5000620379, 5000620485 |
| Premium Portable Generator | GP6600 | 5000620385 |
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.
