Sierra 18-6273-1 Mercury Tilt/Trim MotorFor Mercury and Mariner Outboard Engines. High performance cartridge pump with replaceable motor. Three ram integral power trim; Fits Mercury/Mariner 70/75/80/90 hp. (3 cyl.) 2 cycle outboards, 1987 through 1997 1/2 and 75 hp. (4 cyl.) 2 cycle, 1984 through 1987.See application chart for specific engine models.Replaces: Arco; 6278; Mercury; 826729A08; 826729A09; 826729A10; 99186T; 99186-1; 99186; 826729A07; 826729A4; 818186A6; 821821A2; 392-8995; Mallory; 9-18205; 9-18206; 9-18213;