The Honda 16166-Z8D-851 Main Carburetor Nozzle is a genuine OEM replacement designed for GCV160 and GCV190 vertical shaft engines. As a direct Honda OEM component, this nozzle is manufactured to the same specification as the original, ensuring correct fuel metering and consistent engine response right out of the box. This part fits both the GCV160 and GCV190 series — verify your engine's serial number against the fitment table before ordering, as Honda supersedes parts at serial breaks within a model family. When your original nozzle is worn, blocked, or damaged, replacing it with part number 16166-Z8D-851 restores proper fuel delivery and keeps the engine running cleanly at all throttle positions.
Key Features
- Correct Fuel Metering — genuine OEM construction means the orifice diameter and flow calibration match Honda's original specification, delivering the fuel-air ratio the carburetor was designed around
- Direct OEM Replacement — this nozzle installs into the carburetor body exactly as the original, with no reworking or adaptation needed
- GCV160 and GCV190 Fitment — designed for Honda GCV160 and GCV190 vertical shaft engines; confirm your serial number against the fitment table to ensure this is the correct nozzle for your specific unit
- Restores Clean Throttle Response — a worn or clogged main nozzle causes rich or lean running, rough idle, and poor power; a fresh OEM nozzle brings fuel delivery back to spec across the rpm range
The main carburetor nozzle is the precision metering passage through which the carburetor draws fuel into the airstream under engine load. Its calibrated orifice controls how much fuel enters the venturi, directly determining the fuel-air mixture that reaches the combustion chamber. When this nozzle becomes worn, corroded, or varnished from stale fuel, the engine loses the ability to maintain a consistent mixture — resulting in stumbling, loss of power, hard starting, or excessive fuel consumption. Replacing it restores the carburetor to proper operating condition.
Part Details
| Part Number | 16166-Z8D-851 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Main Carburetor Nozzle |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Vertical Shaft Engine | GCV160, GCV190 | 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.
