56110-ZW2-F11 Piston Rod - Overview. The 56110-ZW2-F11 Piston Rod is a vital component in Honda marine engine systems, functioning as the connecting rod between the piston and the crankshaft. It transmits the linear motion of the piston to the crankshaft, facilitating the conversion of combustion energy into rotational mechanical power, which drives your boat efficiently and reliably. Crafted to meet exact OEM specifications, this piston rod ensures a perfect fit and smooth operation within the