Fits Force:75-150HP, 1995-present, 15 tooth splineAlso fits Honda:75-90 HP,1995-1998, 15 tooth splineAlso fits Mercury:60 HP Bigfoot, 15 tooth spline70-140 HP (except 135 HP), 1961-present, XR-4, XR-6, 15 tooth135 HP, 1987-present, 15 tooth spline150-300 HP, 1978-present, 15 tooth splineAlso fits Mercruiser:Alpha One and Bravo One (Less than 400 HP)Also Fits Yamaha:80-140 HP, 1978-1983, 15 tooth spline150-175 HP, 1978-1983, 15 tooth spline