90104-ZY1-871 Hex Bolt - Overview. The 90104-ZY1-871 Hex Bolt is a critical component in Honda marine engine systems. This genuine hex bolt supports various mounting and securing applications within the engine's mechanical systems. As a factory-designed part, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. OEM Hex Bolt designed specifically for Honda marine systems to meet strict quality standards.. Provides secure fastening critical to the integrity and safety of marine engine assemblies.. Manufactured to match factory specifications, dimensions, and tolerances exactly.. Ensures clean integration with existing hardware, seals, and housings to maintain system reliability.. Contributes to maintaining proper mechanical motion and structural stability within the engine system.. Durable design helps resist corrosion and wear in marine environments.. Why Choose Genuine OEM. Using original Honda parts like the 90104-ZY1-871