90503-ZV5-000 Washer (22Mm) - Overview. The 90503-ZV5-000 Washer (22Mm) is a genuine Honda marine engine component essential for maintaining the integrity of various mechanical assemblies within Honda marine systems. It operates primarily as a 22mm washer designed to distribute load evenly and provide proper spacing to prevent wear and tear on adjoining engine parts. This washer plays a crucial role in supporting the propeller shaft and other related hardware, ensuring reliable and seamless oper