90157-Zw4-000 Flange (8x65) Bolt - Overview. The 90157-ZW4-000 Flange (8X65) Bolt is a critical component within Honda marine engine systems. This flange bolt measures 8mm in diameter and 65mm in length, serving as a secure fastener that upholds the structural integrity of various engine assemblies. Engineered for specific use in Honda's Active series marine engines, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Precisely designed flange bolt measuring 8x65 mm for secure fastening.. Genuine OEM Honda part, ensuring factory-level quality and reliability.. Supports mechanical assembly integrity within marine engine systems.. Manufactured to exact factory specifications, dimensions, and tolerances.. Integrates cleanly with existing hardware, seals, and housings for optimal fitment.. OEM-style construction guarantees durability and consistent operational feel.. Why Choose Genuine OEM. Using original Honda parts like the