90109-ZVL-000 Flange (6X25) Bolt - Overview. The 90109-ZVL-000 Flange (6X25) Bolt is a crucial component designed for Honda marine engine systems. This flange bolt serves a vital role in securely fastening parts within the engine assembly, ensuring structural integrity and reliable operation. Manufactured to meet exact Honda factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. 6x25 millimeter flange bolt speci