56110-ZZ3-003 Piston Rod - Overview. The 56110-ZZ3-003 Piston Rod is a vital component in Honda marine engine hydraulic systems. This piston rod functions by transmitting force and mechanical motion within the power trim and tilt system, helping maintain precise control and smooth operation of your marine engine. Designed to the exact factory specifications, this OEM Honda piston rod ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features.