Mercury - Platinum Plus Throttle and Shift Cable 12 Foot Mechanical Engine Control - 858342A12. The Mercury Platinum Plus Throttle and Shift Cable is designed for Mercury mechanical control systems where smooth, dependable response at the helm is expected. Featuring Platinum Plus construction, this cable provides a direct mechanical connection between the helm and engine while reducing internal friction for controlled, predictable throttle and shift movement. The 12-foot length is well suited fo