Mercury - Analog Gauge Harness DTS Engine Link 84-8M0095828. OverviewThis 30-foot analog gauge harness plugs straight into the engine's 4-pin connection and gives you the four basics-trim, coolant temp, oil pressure, and tach. The long reach makes it a good match for bigger boats, long rigging runs, or consoles mounted way forward. Out on the water, it helps those gauges read smooth and steady instead of flickering or cutting out like they do with tired wiring. Simple plug-in setup, lots of leng