The Wacker Neuson Carburetor Complete is a genuine OEM component designed for the GP3800A and GV3800 series portable generators. Sourced directly from Wacker Neuson, this carburetor complete meets the same specifications as the original unit installed at the factory, ensuring a straight swap with no guesswork. It is confirmed to fit multiple GP3800A configurations — including EPA and CSA compliant models — as well as the GV3800 Value Portable Generator. When your generator is running rough, surging, or refusing to start, replacing the carburetor complete with the correct OEM part is the most reliable path back to full power output.
Key Features
- OEM-Matched Fuel Metering: — Calibrated to the exact fuel-to-air ratio specified for the GP3800A and GV3800 engines, so the generator delivers its rated wattage output without hesitation or surging.
- Complete Assembly: — Supplied as a fully assembled carburetor unit with internal components intact, allowing direct installation without sourcing separate rebuild components.
- Broad GP3800A Coverage: — Fits EPA (with and without wheel kit) and CSA variants of the GP3800A, plus the GV3800 Value Portable Generator, covering a wide range of Wacker Neuson portable generator configurations.
- Genuine Wacker Neuson OEM Part: — Manufactured to the original design tolerances for correct throttle response, cold-start performance, and consistent fuel delivery under load.
- Fuel System Integrity: — A worn or deteriorated carburetor causes hard starting, unstable idle, and under-voltage output; replacing it with part number 5200003871 restores clean, consistent fuel delivery to the engine.
The carburetor is the heart of the fuel delivery system on a gasoline-powered generator. It blends air and fuel in the correct ratio before the mixture enters the engine's combustion chamber — too lean and the engine surges or stalls under load; too rich and it runs sluggish and wastes fuel. Over time, ethanol-blended fuels can leave varnish deposits and corrode internal passages, causing the carburetor to lose its calibration. Replacing the carburetor complete on your GP3800A or GV3800 with the correct OEM unit restores proper engine operation and consistent electrical output.
Part Details
| Part Number | 5200003871 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Carburetor Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| GP3800A Generator, EPA w/Wheel Kit | GP3800 | 5000620976, 5000620974, 5000620975, 5100031174 |
| Value Portable Generator | GV3800 | 5000620994 |
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.
