Mercury - Platinum Plus Throttle and Shift Cable 40 Foot Mechanical Engine Control 8M0082558. The Mercury Platinum Plus Throttle and Shift Cable (40 Foot / 12.2 m) is designed for boats equipped with Mercury Gen II mechanical control systems where extremely long routing runs still require smooth, predictable control. This cable provides a direct mechanical connection between the control box and engine, using a low-friction Platinum Plus design to maintain consistent throttle response and clean s