The Honda 16166-Z9E-003 Main Nozzle is a genuine OEM carburetor component designed for EB10000 generators and GX630, GX660, and GX690 horizontal shaft engines. As a direct Honda OEM part, it is manufactured to the exact dimensions and flow characteristics required by the original carburetor assembly. Verify part number 16166-Z9E-003 against your machine's serial number and model code before ordering, as Honda does supersede carburetor components across production runs. This is the correct replacement when fuel delivery performance has degraded or the original nozzle is worn or damaged.
Key Features
- Exact Fuel Metering — manufactured to Honda's original orifice dimensions, ensuring the carburetor delivers the correct air-fuel ratio at all throttle positions
- Genuine OEM Part — sourced directly from Honda, eliminating the guesswork of cross-referencing aftermarket alternatives for a precision fuel-system component
- Broad Fitment — designed for EB10000 generators and GX630, GX660, and GX690 horizontal shaft engines; confirm your serial number against the fitment table to identify the correct production range
- Restores Clean Combustion — a worn or clogged main nozzle causes rich or lean running, rough idle, and power loss; replacing it with this part brings fuel delivery back to specification
The main nozzle is a small but critical passage inside the carburetor's main circuit. Fuel is drawn through this precisely sized orifice and mixed with incoming air before entering the engine's combustion chamber. Because the nozzle's bore diameter directly governs how much fuel the engine receives under load, even minor wear, varnish buildup, or a partial blockage will cause lean running, hesitation, or a noticeable drop in output. Replacing a degraded nozzle with a correctly sized OEM part restores the fuel-delivery calibration the carburetor was designed around and returns the engine or generator to its intended power output.
Part Details
| Part Number | 16166-Z9E-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Main Nozzle |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB10000 | All |
| Horizontal Shaft Engine | GX630, GX660, GX690 | 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.
