16718-ZY3-000 Fuel Pump Insulator - Overview. The 16718-ZY3-000 Fuel Pump Insulator is a crucial rubber component in Honda marine engine systems. It provides effective vibration dampening for the fuel pump assembly, reducing noise and protecting the pump and engine from damage caused by excessive vibrations. Designed for seamless integration within Honda fuel systems, this insulator helps ensure reliable operation and longevity of your marine engine by maintaining optimal fuel pump function with