Check fitment before purchasing. Works on some Mariner Outboards - 60HP - 140HP. Mark Outboards - KF3, KE4, 5, KF5, 6, 6A, 7, 10, 10A, 15A, 28, 28A & 28AD. Mercruiser Sterndrives - 228, 250, 898 & TR/TRS/2. Mercury Outboards - 7.5HP - 150HP.