Cummins ISX12G 11.9 L Compressed Natural Gas (CNG) 400 hp Engine, 15614.6 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Allison 4000RDS Automatic Transmission, 12000 lb Front Axle, 34000 lb Rears, 4.33:1 Axle Ratio, 46000 lb GVWR, Air Ride Cab, Aluminum Wheels, 295/75R22.5 Front Tires, 445/50R22.5 Super Singles Rear Tires, Airglide Air Ride Suspension, 196 in Wheelbase, Air Sliding 5th Wheel

Cummins ISX12G 6 Cylinder 11.9 L Compressed Natural Gas (CNG) 400 hp Engine, 2013 US EPA Label, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Allison 4000RDS Automatic Transmission, 12000 lb Front Axle, 34000 lb Rears, 4.33:1 Axle Ratio, 46000 lb GVWR, Air Ride Cab, Aluminum Wheels, 11R22.5 Front Tires, 445/50R22.5 Super Singles Rear Tires, Air Ride Suspension, 195 in Wheelbase, Air Sliding 5th Wheel

Cummins ISX12G 6 Cylinder 11.9 L Compressed Natural Gas (CNG) 400 hp Engine, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Allison 4000RDS Automatic Transmission, 12000 lb Front Axle, 34000 lb Rears, 4.33:1 Axle Ratio, 46000 lb GVWR, Air Ride Cab, Aluminum Wheels, 295/75R22.5 Front Tires, 445/50R22.5 Super Singles Rear Tires, Air Ride Suspension, 195 in Wheelbase, Air Sliding 5th Wheel