16620-ZY3-A00 L Fuel Pipe - Overview. The 16620-ZY3-A00 L Fuel Pipe is a critical component within Honda marine engine systems, specifically engineered to support the fuel delivery system. This genuine OEM pipe serves as an essential fuel line that ensures smooth and reliable fuel flow, directly contributing to the efficient operation and overall performance of your marine engine. Engineered to meet precise factory specifications and tolerances, it integrates seamlessly with existing fuel system