Mercury - Aluminum Anode Kit Corrosion Protection System Aluminum Marine Finish 8M0205954. Overview. When you spend enough time on the water, you start to appreciate the parts you never see-the ones working quietly in the background to keep every trip smooth and worry-free. Corrosion is one of those forces that never sleeps, especially when you're running in saltwater or leaving the boat docked for long stretches. That's why having the right anode kit gives you a real sense of comfort. With the