Mercury - Gen I Throttle and Shift 10 Ft Mechanical Control Cable 8M0085937. The Mercury Gen I throttle and shift cable is designed for Mercury mechanical control systems that require a mid-range cable length for clean, relaxed routing. It is commonly used on side-mount controls and compact console layouts where shorter cables feel tight and longer cables create unnecessary slack. The 10-foot length strikes a balance between reach and control, helping restore smooth throttle response and predict