Mercury - Quicksilver 833163A1 Anode Kit Mercury 175-240HP Jet Drives 833163A1. Overview. Corrosion is every boater's quiet enemy, and the best defense is a good anode. The Quicksilver 833163A1 Anode Kit protects your Mercury 175-240HP Jet Drive from galvanic corrosion whether you're running in saltwater, freshwater, or somewhere in between.. This OEM kit includes the anode and four stainless screws for easy installation. Made from marine-grade aluminum, it's engineered to corrode evenly and slo