90545-323-700 Washer (6.5x18) - Overview. The 90545-323-700 Washer (6.5x18) is a precise marine engine component designed for Honda marine systems. This vital hardware supports mechanical assemblies by evenly distributing load, preventing surface damage, and securing components. It is engineered to maintain the reliability and performance of Honda marine engines by ensuring seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Washer with dimensions 6.5 mm inner diameter and 18 mm outer diameter, thickness typically 1.6 mm.. OEM genuine Honda component, assuring factory-level quality and compatibility.. Functions to evenly distribute mechanical load and prevent damage to connected surfaces.. Designed to exact Honda factory specifications, dimensions, and tolerances.. Ensures clean integration with corresponding bolts, nuts, and mounting surfaces.. Maintains expected durability, performance, and mechanical feel.. Why Choose Genuine OEM.