35660-ZY9-003 Trim Angle Sensor - Overview. The 35660-ZY9-003 Trim Angle Sensor is an essential component in Honda marine engine systems that measures the tilt angle of Honda outboard motors. This sensor provides critical data to the boat's control systems, enabling precise trim adjustments that optimize performance, fuel efficiency, and handling. Designed to keep your equipment operating reliably, it ensures seamless integration with existing parts, maintaining optimal performance and durabilit