41112-ZV7-720 Vertical Shaft - Overview. The 41112-ZV7-720 Vertical Shaft is a critical component within Honda marine engine systems, specifically supporting the drive shaft system. This vertical shaft facilitates the mechanical transmission of power from the engine to the propeller assembly, ensuring dependable and efficient operation of your marine vessel. Engineered to match factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durabi