90505-ZVL-B10 Lock Washer - Overview. The 90505-ZVL-B10 Lock Washer is a critical component in Honda marine engine systems, designed to prevent fasteners from loosening under vibration or mechanical stress. This lock washer plays a vital role in maintaining the integrity and reliability of Honda marine hardware setups, ensuring that your equipment continues to operate safely and efficiently. Engineered to meet stringent factory tolerances, it seamlessly integrates with associated fasteners and mounting assemblies.. Key Features. Genuine OEM Honda part guaranteeing exact fit, form, and function.. Specifically designed to lock nuts and bolts securely within marine systems.. Prevents fastener loosening caused by engine vibration and external stresses.. Manufactured to precise factory specifications for reliable performance.. Compatible with a wide range of Honda marine engine components.. Corrosion-resistant materials to endure harsh marine environments.. Why Choose Genuine OEM. Using ori