Mercury - Trim Tab Anode Corrosion Protection & Steering Stability Aluminum Construction 853762T01. Overview. You don't think much about your trim tab until you feel the difference it makes - smooth steering, stable tracking, and the quiet assurance that your engine is protected beneath the surface. The Mercury Quicksilver 853762T01 Aluminum Trim Tab Anode delivers exactly that kind of confidence. Designed for Mercury 8HP and 9.9HP 4-stroke outboards, it works quietly in the background, balancin