Mercury - Aluminum Anode Kit Corrosion Protection System 8M0116590. Overview. If you spend enough time on the water, you learn to respect what you can't see. Beneath the shine of a freshly flushed Verado, there's a constant battle happening between metal and the elements. Saltwater, freshwater, brackish bays-they all work their way into every crevice. That's why having the right anodes in place isn't just maintenance; it's peace of mind. The Mercury 8M0116590 Aluminum Anode Kit gives you that st