90501-ZZ5-M00 Plain (5Mm) Washer - Overview. The 90501-ZZ5-M00 Plain (5Mm) Washer is a vital hardware component in Honda marine engine systems. Designed for secure mounting and load distribution, this washer prevents damage caused by tightening fasteners, maintaining the integrity and performance of your marine engine. Crafted to Honda's factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Plain washer type with a 5mm dimension designed specifically for marine applications.. OEM genuine Honda part, assuring excellent quality and fit.. Distributes load and reduces stress on bolts and screws during assembly.. Manufactured to meet precise Honda system specifications and tolerances.. Ensures reliable and secure mounting for various engine components.. Compatible with Honda marine engine rigging and accessories.. Why Choose Genuine OEM. Using original Honda parts like the 90501-ZZ5-M00 Plain (5Mm) Washer