28428-ZW9-003 E-Ring - Overview. The 28428-ZW9-003 E-Ring is a crucial fastening component used in Honda marine engine systems. This small circular ring functions to securely hold components in place, preventing them from loosening or dislodging during operation. Installed within the recoil starter assembly and other key mechanical subsystems, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Compact E-Ring design specifically eng