Mercury - Transom and Gear Case Anode Kit Aluminum Corrosion Protection 8M0116589. Overview. Every boater knows that corrosion never sleeps. It works quietly, slowly, and without mercy-especially if you spend your days on brackish water or push your Verado hard offshore. That's why having the right anodes in the right places matters more than most people realize. The Quicksilver 8M0116589 Aluminum Anode Kit gives you that reassuring sense of protection, the kind that lets you focus on the water