90201-ZY6-030 Nut (6Mm) - Overview. The 90201-ZY6-030 Nut (6Mm) is a critical fastening component in Honda marine engine systems. Supporting the mechanical assembly, it ensures the secure mounting of key engine parts, contributing to the reliable operation of the marine equipment. Designed precisely to factory specifications and tolerances, it provides seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM Honda nut designed for marin