41112-ZV5-701 Vertical Shaft - Overview. The 41112-ZV5-701 Vertical Shaft is a critical component in Honda marine engine systems, specifically designed to transmit rotational power vertically within the gearcase of outboard motors. This part supports the marine propulsion system and plays an essential role in keeping the engine operating reliably and efficiently. Crafted to meet stringent factory specifications, the vertical shaft ensures seamless integration with other components, maintaining o