41110-ZV4-000 Vertical Shaft - Overview. The 41110-ZV4-000 Vertical Shaft is an essential component in Honda marine engine systems. This shaft connects the powerhead to the lower unit, transmitting rotational force necessary for propeller operation. As a key part of the marine drive system, it plays a critical role in maintaining reliable propulsion and overall engine performance. Designed to Honda's exact factory specifications, it ensures seamless integration with existing parts, maintaining o