Unused 15 HP Stainless Steel Horizontal Positive Displacement Gear Pump. Mfg. by Blackmer (DXP). Model #MS4. 230 gpm. 5.47' head, 51.5 psi differential pressure. 160 deg. F. Casing 17-4PH Stainless Steel; Vance: Duravane Composite. 4" suction, 4" discharge. 6.65:1 gear ratio. 15 hp motor.Serial #2373994. Rail Unloading Pump.