31225-ZZ3-003 Washer Stopper Set - Overview. The 31225-ZZ3-003 Washer Stopper Set is an essential component in Honda marine engine systems, designed to act as a stopper mechanism that controls movement and alignment of related rigging and accessory parts. By firmly positioning elements within the system, this stopper set supports reliable and efficient operation in marine environments, helping to prevent wear and potential damage from excessive motion. Crafted by Honda to OEM standards, it ensur