Mercury - 12 Volt Trim and Tilt Motor for OMC Power Trim and Tilt Series Marine Grade Construction 8M6007538. Overview. If you have spent any time running older OMC powered boats, you know how much you depend on that trim and tilt switch. You bump the button, watch the bow rise or settle, and you can feel when the boat is locked into the right attitude. When the motor responds instantly, it makes everything feel easier and more controlled. That is what this Mercury Marine part brings back to an