90123-ZY6-000 Bolt-Washer (10X40) - Overview. The 90123-ZY6-000 Bolt-Washer (10X40) is a precision-engineered component designed for Honda marine engine systems. This bolt-washer assembly plays a crucial role in securing various parts within the marine equipment, ensuring stable and reliable operation. Its design follows exact factory specifications, which guarantees seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. OEM genuine Honda bolt-washer assembly specifically sized at 10mm diameter by 40mm length.. Designed to provide secure mounting to support marine engine components, preventing loosening under vibration and operational stress.. Manufactured to meet stringent Honda specifications for durability and corrosion resistance in marine environments.. Ensures proper alignment and fastening, contributing to the overall reliability of the marine engine system.. Built to match exact dimensions, tolerances, and material quality for o