Specifications include, but are not limited to: 1. Diesel engine with minimum HP rating of 350 at 2,000 RPM and minimum torque rating of 1,000 lb.-ft. at 1,400 RPM. 2. Shall be EPA compliant. 3. Engine will have removable cylinder linings/wet sleeves. 4. Engine Exhaust brake. Factory installed. On/Off switch located in dash. 5. Right hand side mounted vertical exhaust and guard with turn out. 6. Dash mounted airflow restriction gauge. 7. Air intake system to include inside/outside air cleaner valve. 8. Electronic engine shut down after fifteen minutes idle time. 9. Electronic engine control to limit maximum highway speed to 65 MPH. 10. Engine block heater 120 volt rated outlet located under driver’s side door. Heater rated to 1,000 watts minimum. 11. Extended life engine coolant. 12. Heated fuel/water separator.