90124-ZV5-A10 Stud (8X164) Bolt - Overview. The 90124-ZV5-A10 Stud (8X164) Bolt is an essential component in Honda marine engine systems. This stud bolt plays a crucial role in securing various engine parts, ensuring the engine operates reliably under demanding marine conditions. Designed with precision to meet factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Stud bolt measuring 8x164 millimeters, specific