Mercury - Gen II Throttle and Shift 18 Ft Mechanical Control Cable 8M0085115. The Mercury Gen II throttle and shift cable is designed for Mercury mechanical control systems that require longer routing to keep installations clean and relaxed. It is commonly used on center consoles and wider helm layouts that exceed mid-range cable lengths. The 18-foot run helps prevent tight bends and unnecessary strain on the control system, allowing the cable to lay naturally through the rigging path and restor