OFM Model 2250 Triplex Well Service Pump. 2250 Horsepower For Lightweight and High Performance. For High Pressure Fracturing, Acidizing, and Industrial Cleaning. Pumps Also Available in 350 Through 2250 Horsepower. Repairs On All Types of Triplex Pumps. Also, New Fluid Ends for the Following Pumps: OILWELL SA-640-5 & 644-5 and WESTERN RR500.