53123-ZW4-H01 Bracket Clamp - Overview. The 53123-ZW4-H01 Bracket Clamp is a critical component within Honda marine engine rigging and accessories. It supports the mounting system by securely fastening brackets, ensuring reliable operation and structural stability of the engine setup. Designed for seamless integration with Honda marine engine systems, this clamp contributes to maintaining optimal performance and durability under demanding marine conditions.. Key Features. The Bracket Clamp funct