16166-ZV1-F01 Main Nozzle - Overview. The 16166-ZV1-F01 Main Nozzle is an essential component in Honda marine engine fuel systems. This part plays a critical role in regulating the flow of fuel into the combustion chamber, ensuring precise fuel delivery for optimal engine performance and efficiency. Designed to meet Honda's exact factory specifications, it supports smooth operation and reliability of Honda marine engines. Its high precision machining and OEM-grade quality guarantee seamless comp