16017-ZY9-040 Fuel Pump Unit - Overview. The 16017-ZY9-040 Fuel Pump Unit plays a critical role in Honda marine engine systems by drawing fuel from the tank and delivering it consistently to the engine. As a vital component of the fuel system, it ensures continuous fuel supply to maintain seamless engine operation and optimal performance. Designed to the highest standards, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. The Fuel