23437-Zv5-000 Gear (33t) - Overview. The 23437-ZV5-000 Gear (33T) is a specialized component in Honda marine engine systems, functioning within the transmission system to transmit power effectively. Designed specifically for Honda Active Marine applications, this gear plays a crucial role in maintaining smooth and reliable mechanical motion essential for your marine engine's performance. Precision-engineered, it ensures seamless integration with existing parts, maintaining optimal performance an