Mercury - Gen II Throttle and Shift Cable Mechanical Control 12 Ft 8M0085109. The Mercury Gen II throttle and shift cable is designed for Mercury mechanical control systems that require smooth, dependable control from the helm to the engine. It is commonly used when replacing aging cables or refining a mechanical rigging setup where consistent throttle response and clean shifting are important. The 12-foot length offers a balanced option for mid-size console layouts, providing enough reach for p