90325-MJT-E01 U (3Mm) Nut - Overview. The 90325-MJT-E01 U (3MM) Nut is a specialized genuine OEM component designed to support critical fastening functions within Honda marine engine systems. This nut plays an essential role in securing various parts, ensuring reliable mechanical connections in demanding marine environments. Manufactured to match factory specifications, it offers seamless integration with existing hardware and assemblies, maintaining optimal performance and durability across Hon