Cummins ISB6.7 6 Cylinder 6.7 L Ultra Low Sulfur Diesel Engine, 2010 US EPA Label, Requires Diesel Exhaust Fluid, Allison Automatic Transmission, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, 115 in Wheelbase, PTO, Hydraulic Lift 5th Wheel

Diesel Engine, Allison Automatic Transmission, 11R22.5 Front Tires, 11R22.5 Rear Tires, Double Frame, 124 in Wheelbase, Hydraulic Lift 5th Wheel

Diesel Engine, Allison Automatic Transmission, Differential Lock, 11R22.5 Front Tires, 11R22.5 Rear Tires, 122 in Wheelbase, Hydraulic Lift 5th Wheel