Mercury - Gen I Throttle and Shift 6 Ft Mechanical Control Cable 8M0085940. The Mercury Gen I throttle and shift cable is designed for Mercury mechanical control systems that need slightly more reach than very short runs while still maintaining clean, controlled routing. It is commonly used on small consoles and side-mount installations where excess slack can interfere with smooth operation. The 6-foot length provides added flexibility without forcing tight bends, helping restore responsive, pre