Mercury - Analog Trim Sender Kit Analog Trim Output 8M0094923. Overview. When an analog trim gauge stops tracking the engine, every adjustment starts feeling a little uncertain. The Mercury 8M0094923 Analog Trim Sender Kit brings that confidence back by restoring clean, steady trim feedback to the helm. Once installed, the gauge follows the engine's movement smoothly again, making trimming the boat feel natural and predictable whether you're running shallow, settling into chop, or easing toward