The Honda 16166-Z6P-801 Main Nozzle is a genuine OEM replacement designed for GXV630, GXV660, and GXV690 vertical shaft engines. As a direct Honda OEM component, this main nozzle is manufactured to the exact specifications required for proper fuel metering and carburetor performance on these engines. Honda supersedes parts at serial number breaks, so confirm your engine's serial number against the fitment table before ordering to ensure part number 16166-Z6P-801 is the correct application for your unit.
Key Features
- Precise Fuel Metering — manufactured to Honda's OEM specification for correct main circuit fuel delivery, ensuring the carburetor operates within the designed air-fuel ratio range for these engines.
- Genuine Honda OEM Part — sourced directly from Honda, this main nozzle is an exact match for the original component it replaces, with no fitting adjustments needed.
- Fits GXV630, GXV660, and GXV690 Engines — built specifically for Honda's large-displacement vertical shaft engine family; verify your serial number against the fitment table to confirm compatibility with your unit.
- Restores Carburetor Function — a worn, clogged, or damaged main nozzle disrupts the main fuel circuit and causes rough running, poor throttle response, and hard starting; replacing it with this OEM part returns the carburetor to correct operation.
The main nozzle is a precision-calibrated fuel passage component located inside the carburetor. It meters the flow of fuel into the main circuit, which governs fuel delivery during mid-range and full-throttle operation. When the main nozzle becomes clogged with varnish deposits or wears beyond tolerance, the engine will run lean, stumble under load, or lose top-end power — symptoms that often lead to misdiagnosis of the carburetor as a whole. Replacing this single component with a correctly sized OEM nozzle restores accurate fuel metering and brings the engine back to clean, responsive operation.
Part Details
| Part Number | 16166-Z6P-801 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Main Nozzle |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Vertical Shaft Engine | GXV630, GXV660, GXV690 | 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.
