35180-ZW9-023 Emergency Stop Sw - Overview. The 35180-ZW9-023 Emergency Stop Sw is an essential safety component within Honda marine engine systems. Designed to immediately cut power to the engine when activated, this switch plays a vital role in preventing accidents and protecting operators in emergency situations. Manufactured to meet strict factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. OEM genuine Ho