The Honda 16166-Z1C-E21 Main Nozzle is a genuine OEM component designed for EG5000 and EG6500 generators. As a direct Honda OEM part, it is manufactured to the exact specifications required for proper fuel delivery in these machines. This Main Nozzle is the correct replacement for both the EG5000 and EG6500 — confirm your unit's serial number against the fitment table before ordering, as Honda supersedes parts at serial breaks. When the fuel metering system is performing correctly, your generator runs cleanly and responds predictably under load.
Key Features
- Accurate Fuel Metering — as a genuine OEM part, this Main Nozzle is sized to Honda's exact fuel-metering specification, ensuring the carburetor delivers the correct air-fuel ratio for consistent generator output
- Direct OEM Replacement — part number 16166-Z1C-E21 installs directly in place of the original nozzle with no modification to the carburetor body
- EG5000 and EG6500 Fitment — confirmed for Honda EG5000 and EG6500 generators; verify your serial number against the fitment table, as Honda updates part applicability at serial breaks
- Restored Performance — a clogged or worn main nozzle starves the engine of fuel at mid and full throttle, causing rough running, surging, and loss of output; replacing it with this OEM nozzle restores steady carburetor function
The main nozzle is the primary fuel-metering jet inside the carburetor, responsible for delivering the correct volume of fuel into the airstream at cruising and full-throttle operation. It works together with the needle and emulsion tube to atomize fuel and maintain a stable air-fuel mixture as the generator powers through varying loads. When the nozzle becomes blocked with varnish deposits or its orifice wears out of spec, the engine will surge, run lean, or struggle to maintain steady voltage output — symptoms that replacing this part directly addresses.
Part Details
| Part Number | 16166-Z1C-E21 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Main Nozzle |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EG5000, EG6500 | All |
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.
