16620-ZW5-020 Fuel Line - Overview. The 16620-ZW5-020 Fuel Line is a critical component in Honda marine engine systems. It functions as the specialized conduit that delivers fuel efficiently from the tank to the engine's fuel injection system, ensuring consistent engine operation and power delivery. Engineered for Honda outboards, it guarantees precise fuel flow management, enhancing overall engine performance and reliability. Manufactured to match factory specifications, this fuel line fits sea