Specifications include, but are not limited to: ENGINE 2.1. Diesel 2.2. Cylinder: 4 2.3. Horsepower: 49 2.4. Liquid cooled 2.5. 12-volt electrical system with solid state circuitry 2.6. Battery: 12-volts, maintenance free 2.7. Muffler with rain cap 2.8. Air filter: 2 stage, heavy duty, dry type with restriction gauge 2.9. Spin on oil filter 2.10. Instruments: oil pressure, water temperature, hour meter, air discharge pressure, tachometer, ammeter 2.11. Starter protection system 3. COMPRESSOR 3.1. Single stage, oil flooded rotary screw 3.2. Actual free air delivery at 100 PSIG, 185 CFM 3.3. Rated operating pressure: 100 PSIG 3.4. Maximum pressure: 125 PSIG 3.5. Air service valve (1) 3/4" 3.6. Engine shutdown system, high discharge air temperature, low engine oil pressure high engine temperature 3.7. Fuel tank(s) – 10 hours of continuous operation 3.8. Key start 3.9. Automatic blowdown valve 3.10. Safety valve, sonic nozzle 3.11. 25-micron replaceable compressor oil filter