Drop in replacement for Ross MB150101AAAA hydraulic motor. Low speed, high torque. 15.68 cubic inch displacement. 6 bolt universal flange mount that has the same bolt hole pattern as a SAE 2 bolt or SAE 4 bolt flange. SAE 6B spline shaft. 7/8"-14 SAE ports. 290 RPM maximum speed. 6195 inch lbs. of torque. 19.81 GPM maximum flow rate. 2973 PSI maximum pressure differential. Clockwise rotation.