16870-ZX2-C00 Fuel Tube - Overview. The 16870-ZX2-C00 Fuel Tube is a crucial fuel system component designed specifically for Honda marine engine systems. This fuel tube facilitates the smooth and reliable transport of fuel within the marine engine, ensuring continuous and efficient operation of the vessel. By maintaining a secure and leak-free connection within the fuel system, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Gen