50522-ZY3-000 Tilt Arm Bush - Overview. The 50522-ZY3-000 Tilt Arm Bush is a critical component within Honda marine engine systems, specifically designed to support the tilt arm mechanism. This part functions as a precision bushing that facilitates smooth and controlled movement of the tilt arm, allowing for optimal tilting action and positioning of the engine. Engineered to exact factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and dur