This oil pump puller removes the oil pump without damaging the sump. If the oil pump cover and the gears are removed, the T-shaped part of the oil pump puller in the oilcan alen, after which the pump is pulled effortlessly from the crankcase. Please note that your thread ends, with which the oil pump stuck, from the carter running before you this oil pump used, otherwise the both the oil pump and the oil pump puller be damaged.