Mercury - Quicksilver Aluminum Anode Kit Outboard Corrosion Protection Series Aluminum Finish 8M6007990. Overview. When you spend your days on the water, you learn quickly which parts you can trust and which ones quietly work behind the scenes to keep everything running smooth. An anode kit is one of those unsung heroes. You rarely think about it when everything's going well - but you absolutely feel the difference when corrosion starts creeping in. The Mercury Marine part number 8M6007990 Quick