Mercury - Two Station Throttle and Shift Kit Dual Control Rigging Hardware 8M0046250. The Mercury Two Station Throttle and Shift Kit is designed for rigging dual control stations on Mercury non-DTS mechanical control systems. It provides the required hardware to connect two helm stations to a single engine, allowing throttle and shift inputs to remain synchronized and predictable from either location. This kit is commonly used in flybridge, tower, or dual-helm conversions where proper linkage al