Hydraulic Gear Pump, Displacement (Cu. In./Rev.) 0.73, Nominal GPM @ 1200 RPM 3.79, GPM @ 1800 RPM and 1000 PSI 5.68, GPM @ 3600 RPM and 1000 PSI 11.3, Max. Continuous PSI 3,000, Max. Intermittent Pressure (PSI) 3,650, Max. RPM 3,600 RPM, 2 Bolt SAE A Mounting, Ports (Inlet) 12, Ports (Outlet) 10, Left Rotation, Shaft Extension (In.) 1-13/64, Cover Material Aluminum/Cast Iron, Aluminum Housing, Length (In.) 4.25 in, Width (In.) 5.11 in, Features 5/8 in Key Shaft