Mercury - Aluminum Anodes, Bulk Pack of 10 Corrosion Protection Aluminum 8M0059339. Overview. Anyone who spends real time on the water knows corrosion is relentless. It works quietly beneath the surface, waiting for a weak point in your engine's protection. That's why a dependable anode feels like more than just a metal block - it's a layer of insurance you can actually trust. With the Mercury Aluminum Anode Pack (8M0059339), you get consistent, reliable protection for your outboard or sterndriv