Mercury - Gen I Throttle and Shift 9 Ft Mechanical Control Cable 8M0085946. The Mercury Gen I throttle and shift cable is designed for Mercury mechanical control systems that need slightly more reach without moving into long cable runs. It is commonly used on compact to mid-size consoles where relaxed routing helps avoid tension, sharp bends, or binding during installation. The 9-foot length provides a clean balance between flexibility and control, helping restore smooth throttle response and pr