Check fitment before purchasing. Work on some Mariner Outboards - 40, 45, 50, 75, 80, 85, 115 & 140. Mercury Outboards - 9.8, 20, 30, 35, 40, 45, 50, 65, 70, 75, 80, 90, 115, 125, 135, 140, 150 & 200.