17680-ZV4-000 Outlet Valve - Overview. The 17680-ZV4-000 Outlet Valve is an essential component in Honda marine engine systems. It supports the fuel system by regulating the fluid flow from the fuel tank, ensuring efficient and reliable operation of your marine engine. Engineered to meet factory standards, this outlet valve maintains consistent performance and durability for your Honda-powered vessel. Designed for seamless compatibility, it integrates perfectly with existing parts and supports t