Quicksilver 822777Q-1 Anode Trim Tab Kit Aluminum Quicksilver aluminum trim tab anode For applications where extra clearance is required for high-rake propellers. Fits most Mercury/Mariner outboards 35hp and above, 1995 and newer Force 90hp and 120hp outboards plus all MerCruiser drives. Protect your outboard and sterndrive from the harmful effects of galvanic corrosion while aiding steering control.Product Features Helps protect gear case housing from corrosion as it provides hydrodynamic trim force to your outboard and sterndrive to aid steering; For applications where extra clearance is required for high-rake propellers; Fits most Mercury/Mariner outboards 35hp and above, 1995 and newer Force 90hp and 120hp outboards plus all MerCruiser drives; These cast aluminum anodes meet or exceed mil-spec MIL-A-24779(SH) providing longer lasting protection than zinc anodes and are for use in fresh or saltwater; Inspect anodes periodically for best protection and replace when seeing signs of corrosion or pitting to help keep your maintenance costs down; Produced to meet Mercury Marine original equipment manufacturer specifications to best protect your Mercury Mariner or Force outboard; Application Fits most Mercury/Mariner 35 hp and above, Force 90/120 (1995 and newer), and all Mercury MerCruiser engines.;