Mercury - Platinum Plus Throttle and Shift Cable 18 Ft Mechanical Engine Control 8M0085979. The Mercury Platinum Plus Throttle and Shift Cable is designed for Mercury Gen II SAE mechanical control systems that require smooth, steady operation over longer routing distances. Featuring Platinum Plus construction, it delivers a refined mechanical feel with reduced internal friction, helping maintain precise throttle and shift response at the helm. The 18-foot (5.5 meter) length is well suited for wi