90548-ZV5-010 plain (54mm) washer - Overview. The 90548-ZV5-010 plain (54mm) washer is an essential OEM component in Honda marine engine systems. This flat washer supports mechanical assemblies by evenly distributing load and providing critical spacing within gear cases and propeller shafts. Engineered to original factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Precisely sized 54mm plain washer for Honda marine engine components.. Manufactured to meet exact OEM standards for material quality, dimensions, and tolerances.. Designed to provide even load distribution and proper spacing in mechanical assemblies.. Integral to maintaining the secure fit of propeller and gear components.. Compatible with various Honda marine engines, including BF series such as BF50 and BF40A4.. Enhances durability and reliability by matching Honda's factory engineering.. Why Choose Genuine OEM. Using original Honda par