82873-ZV5-003 Water Check Grommet - Overview. The 82873-ZV5-003 Water Check Grommet is a crucial component in Honda marine engine systems. It functions primarily to provide a secure and waterproof seal where rigging or other engine components pass through protective openings. This grommet protects vital engine parts from water intrusion, thereby enhancing the reliability and longevity of your equipment. Designed with precision to match factory specifications, it ensures seamless integration with