Honda 90137-ZW1-003 Screw B - Overview. The Honda 90137-ZW1-003 Screw B is a critical fastening component used within Honda marine engine systems, specifically designed to maintain the mechanical integrity and reliability of various engine assemblies. This screw ensures secure mounting and connection of parts, playing an essential role in the smooth operation and long-term durability of your marine engine. Due to its precise manufacturing to factory specifications, it guarantees seamless integra