Mercury - Gen II Throttle and Shift 23 Ft Mechanical Control Cable 8M0085122. The Mercury Gen II throttle and shift cable is designed for Mercury mechanical control systems that require additional routing length without creating excess slack or forced bends. It is commonly used on larger consoles where clean cable runs play an important role in long-term reliability. The 23-foot length provides the extra reach needed for wide helm layouts while keeping the control system relaxed and properly sup