The Honda 16166-ZH7-800 Main Nozzle is a genuine OEM replacement designed for GX120 horizontal shaft engines. Sourced directly from Honda, this part meets the exact specifications of the original component it replaces, ensuring the carburetor delivers the correct fuel-to-air mixture your engine depends on. If your GX120 engine is running rough, running rich, or struggling to maintain consistent power, this nozzle is a common service item worth checking.
Key Features
- Genuine OEM Fuel Metering Accuracy — manufactured to Honda's original orifice dimensions, ensuring the carburetor meters fuel at the correct rate for clean combustion and steady engine response
- Direct Fit for GX120 Engines — designed as a drop-in replacement for the GX120 horizontal shaft engine; verify your serial number against the fitment table before ordering
- Restores Consistent Power Delivery — a worn or clogged main nozzle disrupts the fuel circuit, causing rough running, lean conditions, or hard starting; this part brings the circuit back to spec
The main nozzle is a precision-bored jet inside the carburetor body that controls the volume of fuel drawn into the airstream at mid-range and wide-open throttle. Its calibrated orifice size determines how much fuel mixes with incoming air, and even a small amount of varnish buildup or erosion can throw off that balance. A compromised main nozzle leads to lean running, loss of power under load, or erratic throttle response — symptoms that cleaning alone may not resolve when the nozzle itself is worn or damaged.
Part Details
| Part Number | 16166-ZH7-800 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Main Nozzle |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX120 | 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.
