90154-Zw9-000 Flange (10x25) Bolt - Overview. The 90154-ZW9-000 Flange (10x25) Bolt is an essential fastening component designed specifically for Honda marine engine systems. It plays a crucial role in securely joining parts within the engine assembly, ensuring reliable operation under marine conditions. Crafted with precision, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. High-quality flange bolt measuring 10mm by 25mm with a durable flange head for secure mounting.. OEM Genuine Honda component engineered to match factory specifications, dimensions, and tolerances.. Provides stable and robust fastening to maintain the mechanical integrity of marine engines.. Designed to fit perfectly in Honda marine engine swivel case systems and related assemblies.. Ensures consistent performance by preventing loosening under vibration and water exposure.. Integrates cleanly with existing hardware and seals, supporting long-term en