Listings Mud Pumps National Oilwell 10-P-130 Single Acting 1300HP Triplex Mud Pumps – Used By admin 9 years ago National Oilwell 10-P-130 Single Acting 1300HP Triplex Mud Pumps Continue Reading Previous National Oilwell A-1100-PT Single Acting Triplex Mud Pump – UsedNext Oilwell A-1700-PT Single Acting 1700HP Triplex Mud Pumps – Used