The Honda 16166-Z5T-WF1 is a genuine OEM Main Nozzle designed for GX390 horizontal shaft engines. Sourced directly from Honda, this component is manufactured to the same specifications as the original, ensuring the correct fuel metering characteristics your carburetor depends on. Confirm your engine's serial number against the fitment table to verify this is the right nozzle for your unit before ordering.
Key Features
- Correct Fuel Metering — as a genuine Honda OEM part, this nozzle is calibrated to deliver the precise fuel-to-air ratio the GX390 carburetor requires for consistent combustion and smooth throttle response.
- Direct OEM Replacement — manufactured to Honda's original dimensions, this nozzle drops into the carburetor without modification, restoring the fuel circuit to original condition.
- GX390 Fitment — built specifically for the GX390 horizontal shaft engine; verify your serial number against the fitment table, as Honda supersedes carburetor components at serial breaks.
The main nozzle is a small but critical component inside the carburetor's fuel circuit. It meters the flow of fuel drawn from the float bowl into the venturi, where it mixes with incoming air before entering the combustion chamber. When the nozzle is worn, clogged, or damaged, the engine may run lean, surge under load, or fail to reach full power — symptoms that closely mimic other carburetor faults. Replacing this part with a genuine Honda nozzle restores the fuel delivery calibration the GX390 was designed around.
Part Details
| Part Number | 16166-Z5T-WF1 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Main Nozzle |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX390 | 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.
