90511-ZV4-000 Plain (6Mm) Washer - Overview. The 90511-ZV4-000 Plain (6Mm) Washer is an essential hardware component used within Honda marine engine systems. This washer helps distribute loads from threaded fasteners, ensuring secure and reliable assembly in systems such as mounting hardware or sealing assemblies. Designed to meet factory specifications, it maintains the precise size, thickness, and tolerances required to integrate seamlessly with OEM components, ensuring durability and performance.. Key Features. Plain washer with a 6mm diameter designed for Honda marine applications.. Genuine OEM part ensuring exact match to factory specifications.. Provides reliable load distribution for fasteners and fittings.. Helps maintain system integrity through proper sealing and mounting.. Manufactured to meet precise dimensional and material quality standards.. Ensures compatibility and smooth integration with existing engine and rigging hardware.. Why Choose Genuine OEM. Using original Hon