Mercury - Platinum Plus Throttle and Shift Cable 38 Foot Mechanical Engine Control 8M0082557. The Mercury Platinum Plus Throttle and Shift Cable (38 Foot / 11.6 m) is designed for boats equipped with Mercury Gen II mechanical control systems where extra-long routing runs still require smooth, predictable control. This cable delivers a direct mechanical connection with a lighter, more refined feel than standard control cables, helping maintain precise throttle response and clean shift engagement