17620-ZW6-000 Fuel Tank Cap Assembly - Overview. The 17620-ZW6-000 Fuel Tank Cap Assembly is a vital component in Honda marine engine systems. This assembly plays a critical role in securely sealing the fuel tank, preventing fuel leakage and contamination, and maintaining fuel system integrity. Specifically designed for Honda marine applications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM Honda part ensuring aut