Hydraulic PTO Pump, Flow Rate – Maximum 22.1 gpm, Displacement per Revolution 5.5 cu in/rev, Operating Pressure – Maximum 2,500 psi, Motor Speed – Maximum 1,000 RPM, Media Intake Connection Size SAE 16, Discharge Connection Size SAE 12, Number of Shaft Teeth 21, Rotation CCW, Horsepower – Maximum 25 hp, Shaft Outer Diameter 1 3/8 in