90441-PK4-000 Washer (24mm) - Overview. The 90441-PK4-000 Washer (24mm) is a crucial component in Honda marine engine systems. This sealing washer plays an important role in distributing load and preventing damage to connected parts, contributing to the overall reliability and smooth operation of your marine equipment. Designed specifically for Honda marine applications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. OEM Honda