17620-ZV5-901 Fuel Filler Cap - Overview. The 17620-ZV5-901 Fuel Filler Cap is an essential component of Honda marine engine systems. It supports the fuel system by securely sealing the fuel filler opening, preventing fuel leaks and contamination during operation. Designed for Honda Outboard engines ranging between 15HP and 130HP (both 2-stroke and 4-stroke), it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM fuel fille