Houston, TX ,USA

1989 US EPA Label • 6 Cylinder 180 hp 5.9 L Diesel Engine • Automatic transmission

2013 US EPA Label • 6 Cylinder 400 hp 11.9 L Natural Gas Engine

2013 US EPA Label • 6 Cylinder 400 hp 11.9 L Natural Gas Engine

2013 US EPA Label • 6 Cylinder 400 hp 11.9 L Natural Gas Engine

2013 US EPA Label • 6 Cylinder 400 hp 11.0 L Natural Gas Engine

US EPA Label • 6 Cylinder 400 hp 11.9 L Natural Gas Engine

6 Cylinder 400 hp 11.9 L Natural Gas Engine

6 Cylinder 370 hp Diesel Engine

12 Cylinder Diesel Engine

6 Cylinder Diesel Engine • Allison TT4720 transmission

6 Cylinder Diesel Engine • GM Transmission

2004 US EPA Label • 8 Cylinder 325 hp Diesel Engine • automatic transmission

1999 US EPA Label • 8 Cylinder 175 hp Diesel Engine

8 Cylinder Diesel Engine

3 Cylinder Diesel Engine

4 Cylinder Diesel Engine

1 Cylinder 4 hp Gasoline Engine

1 Cylinder 4 hp Gasoline Engine