Quicksilver - Aluminum Trim Tab Anode For Mercury, Mariner & MerCruiser High Rake Propeller Clearance 822777Q1. Overview. When you spend your weekends on the water, you quickly learn that small parts can make a big difference. The Quicksilver 822777Q1 Aluminum Trim Tab Anode is one of those quiet heroes - simple, dependable, and absolutely essential for protecting your motor. Built for outboards and sterndrives that use high-rake propellers, this anode helps guard your gearcase from corrosion wh