Mercury - Power Trim Gauge Trim Position Monitoring Black Face Black Bezel 79-8M6020030. OverviewThis power trim gauge gives you a steady, familiar look at where the engine's sitting without jumping around every time the boat moves. Out on the water, the needle settles quickly, so you get a clean sense of trim even when the chop picks up. It's the kind of gauge that makes small adjustments feel easier and more natural. After a few outings, it becomes second nature to glance at it and dial things