Drop in equivalent to White Drive Products 531-120-W31-31 hydraulic motor. Low speed, high torque. 7.20 cubic inch displacement. Wheel mount. 1-1/2" tapered shaft with key. 7/8"-14 SAE ports. 360 RPM maximum speed. 2876 inch lbs. of torque. 14 GPM maximum flow rate. 2973 PSI maximum pressure differential. Clockwise rotation.