90552-ZV5-000 Plain (12Mm) Washer - Overview. The 90552-ZV5-000 Plain (12Mm) Washer is a crucial hardware component designed for Honda marine engine systems. This plain washer supports the rigging and assembly systems by distributing the load evenly and securing fasteners, thereby preventing wear and loosening. Engineered to Honda's exacting OEM standards, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Precisely manufactured plain washer with 12mm inner diameter.. Genuine OEM component to guarantee fit and function.. Distributes load evenly to protect components from damage.. Designed to meet factory specifications, dimensions, and tolerances.. Ensures secure mounting and integration with other hardware.. Helps maintain consistent reliability and performance of marine systems.. Why Choose Genuine OEM. Using original Honda parts like the 90552-ZV5-000 Plain (12Mm) Washer preserves the integrity of your marine engine. O