24320-ZY9-610 Shift Rod A - Overview. The 24320-ZY9-610 Shift Rod A is a critical part of the Honda marine engine systems, specifically designed to function within the shifting mechanism of the gearbox system. It plays a fundamental role in translating driver input into accurate gear changes, thereby ensuring reliable operation of the marine engine system. Engineered to seamlessly integrate with existing rigging and hardware, it maintains the high standards of performance and durability expected