56110-ZY1-871 Piston Rod - Overview. The 56110-ZY1-871 Piston Rod is a crucial component in Honda marine engine systems. It plays a vital role in the power transmission system by linking the piston to the connecting rod, facilitating the conversion of the piston's linear motion into the crankshaft's rotational movement. This piston rod supports reliable engine operation and delivers consistent performance, ensuring seamless integration with other engine parts while maintaining optimal durability