The Honda 16166-Z8B-901 Main Nozzle is a genuine OEM component designed for GCV160 and GCV190 vertical shaft engines, as well as HRR216 and HRS216 lawn mowers. As a factory-sourced part, it meets Honda's original specifications for fuel metering accuracy, ensuring the carburetor delivers the correct air-fuel mixture under load. This main nozzle is a direct-fit replacement — no modification needed to seat it correctly in the carburetor body. Always confirm your machine's serial number against the fitment table before ordering, as Honda supersedes parts at specific serial breaks.
Key Features
- Accurate Fuel Metering — as a genuine OEM part, this nozzle maintains the precise orifice sizing Honda specifies, so the carburetor delivers the correct mixture across the engine's operating range
- Exact OEM Replacement — sourced directly from Honda, part number 16166-Z8B-901 drops into the carburetor without reworking or adapting the fuel circuit
- Broad Fitment — covers GCV160 and GCV190 vertical shaft engines, along with HRR216 and HRS216 lawn mowers; check your serial number against the fitment table to confirm this is the correct nozzle for your unit
- Restore Lost Power and Starting — a worn or clogged main nozzle starves the engine of fuel at mid-to-high throttle, causing surging, hard starting, or a lean stumble; replacing it brings fuel delivery back to spec
The main nozzle is a small-diameter metering jet seated inside the carburetor body. It controls how much fuel is drawn into the airstream during normal running, directly determining the richness of the air-fuel mixture at cruising and full-throttle operation. When the nozzle becomes clogged with varnish deposits or its orifice wears out of tolerance, the engine may surge, run lean, lose power under load, or refuse to start cleanly. Replacing this nozzle restores proper fuel delivery and brings combustion back into the range Honda engineered the engine to run in.
Part Details
| Part Number | 16166-Z8B-901 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Main Nozzle |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Lawn Mower | HRR216, HRS216 | All |
| 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.
