Mercury - Gen II Console Mount Dual Control, With Trim MerCruiser Mechanical Control 8M0075246. Overview. This control is meant for twin MerCruiser setups where you're actually using trim all the time, not just when you first leave the dock. It's a Gen II console mount control that feels familiar the first time you put your hand on it. One trim switch in the port handle moves both drives together, which is nice when you're getting the boat settled out or pulling back in. When one side needs a li