90083-Pna-000 Sealing (10Mm) Bolt - Overview. The 90083-PNA-000 sealing (10mm) bolt is an essential component in Honda marine engine systems. It plays a crucial role in maintaining a water-tight seal in cylinder head assemblies and other critical areas, ensuring reliable operation and long-term durability. Designed specifically for marine applications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM 10mm sealing bolt