box Mercury Harness by CDI for use on most 1970-81 20-40 HP 2-Cylinder; 1967-75 50-85 HP 4-Cylinder and 1966-79 90-150 HP 6-Cylinder Mercury outboards. Replaces: Mercury 37628, 45070, 52770, 84-46463, 84-66055, 84-66297, 84-69236, 84-71443, 84-73826, 84-74904