Cummins ISX12 G 400 6 Cylinder 11.9 L Compressed Natural Gas (CNG) 400 hp Engine, 2015 US EPA Label, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Allison 4500 6-Speed Automatic Transmission, 12350 lb Front Axle, 22700 lb Rears, 35050 lb GVWR, Air Ride Cab, Aluminum Front Wheels, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, Air Ride Suspension, 196 in Wheelbase, Air Sliding 5th Wheel

Cummins ISX 6 Cylinder Ultra Low Sulfur Diesel 450 hp Engine, US EPA Label, Eaton Fuller 10-Speed Manual Transmission, 12350 lb Front Axle, 20000 lb Rears, Air Ride Cab, 295/75R22.5, Air Ride Suspension, 165 in Wheelbase, Dual Fuel Tanks

Volvo 6 Cylinder Diesel Engine, Requires Diesel Exhaust Fluid, Eaton Fuller FRO-16210C 10-Speed Manual Transmission, 3.73:1 Axle Ratio, 11R22.5, Air Ride Suspension, 204 in Wheelbase, Dual Fuel Tanks