MKP-550 Style Triplex Mud Pump 550 HP 7" x 7" Stroke 5" Discharge 10" Suction, K20 Style Pulsation Dampener, Belt Driven Liner Wash Pump, Internal Gear Lube Pump, Gear Ratio 4.625:1, Mounted on Short Pony Skid, Dressed with new Expendables, Domestic Bearings