90501-ZW4-000 Washer, Plain (10Mm) - Overview. The 90501-ZW4-000 Washer, Plain (10Mm) is a vital component in Honda marine engine systems, designed to provide reliable load distribution and protection between mechanical parts. This plain washer supports the mechanical system by acting as a spacer or load distributor to prevent wear and damage, ensuring seamless operation and longevity of the engine assemblies. Manufactured to OEM specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. OEM plain washer designed for 10mm applications.. Provides load distribution and reduces wear between components.. Manufactured to meet exact Honda factory specifications.. Ensures optimal fit and compatibility with Honda marine engine hardware.. Durable construction for long-lasting use in marine environments.. Facilitates smooth mechanical motion by preventing direct metal-to-metal contact.. Why Choose Genuine OEM. Using origina