Mercury - Quicksilver Aluminum Anode For Bravo, Blackhawk & Vazer Drive Trim Cylinders 806190Q1. Overview. Corrosion can quietly eat away at your drive if you're not protecting it. The Mercury Marine 806190Q1 Quicksilver Aluminum Anode defends your Bravo, Blackhawk, and Vazer drives from galvanic corrosion, keeping your equipment in top shape. It's mounted on the trim cylinder arm or rod - right where corrosion tends to hit first - and built from premium marine-grade aluminum for lasting protect