Mercury - Extension Harness (27 ft) DTS Analog Gauge Link 84-8M0150478. OverviewThis harness gives you a short 2-foot analog gauge lead and a 25-foot 4-pin DTS extension, making it easy to rig boats with consoles set far forward. It plugs straight into the engine's 4-pin connection and carries trim, coolant temp, oil pressure, and tach signals cleanly to the dash. On the water, the gauges stay steady because the signal isn't fighting old wiring or stretched runs. Simple hookup, long reach, and b