Mercury - Quicksilver Aluminum Anode Kit Corrosion Defense Series Marine-Grade Aluminum 8M6008009. Overview. There's a certain peace that settles in when you know your outboard is protected - not just running well, but shielded against the quiet kind of damage that creeps in over time. Any boater who spends long days on the water understands that corrosion never sleeps, especially around the lower unit. That's where the Quicksilver 8M6008009 Aluminum Anode Kit steps in. It's a small upgrade with