Mercury 822777T1 Aluminum Trim Tab Anode - Fits Mercury/Mariner Outboards & MerCruiser SterndrivesMercury Trim Tab Anode 822777T1 protects outboards and sterndrives from the harmful effects of galvanic corrosion in both fresh and saltwater, and aids with steering control. For use with Mercury and Mariner outboards and MerCruiser sterndrives with high-rake props.Engine Part ApplicationFits most Mercury/Mariner 35 hp and above, Force 90/120 (1995 and newer), and all Mercury MerCruiser engines.Key Product Features: Fits most Mercury and Mariner outboards 35hp and above, 1995 and newer Force 90hp and 120hp outboards, and all MerCruiser sterndrives; Inspect annually and replace with included hardware; For applications where extra clearance is required for high-rake propellers; Helps protect gearcase housing from corrosion while also providing hydrodynamic trim force to aid steering; Mercury parts and accessories are backed by decades of experience in engineering, testing and manufacturing to provide the best fit, function and performance;