90752-ZW1-B02 Woodruff Key - Overview. The 90752-ZW1-B02 Woodruff Key is a precision-engineered fastener designed to support Honda marine engine systems, specifically within the driveshaft and water pump assemblies. This critical component helps securely locate and align rotating shafts to corresponding parts, ensuring smooth mechanical motion and dependable operation. Crafted to conform to exact factory specifications, it ensures seamless integration with existing parts, maintaining optimal per