Mercury - 2-Pin Extension Harness (20 ft) Rigging Accessory 84-8M0191742. OverviewThis 20-foot extension harness gives you plenty of length to run the electric steering actuator wiring through the rig tube and up under the cowl without forcing a tight or awkward route. It's meant for boats where the actuator sits farther back or when the wiring path takes a longer turn than usual. Each actuator uses its own harness, which keeps the electrical connection relaxed and dependable. A clean wiring run