Catipilier C6121ZG50 6 Cylinder Diesel 162 kW Engine, 1980 US EPA Label, Automatic Transmission, 18000 lb Front Axle, 38000 lb Rears, 56000 lb GVWR, 385/65R22.5 Front Tires, 11R22.5 Rear Tires, Spring over Walking Beam Suspension, 190 in Wheelbase, Pintle Hitch

Cummins NTC-400 6 Cylinder 855 cid Diesel 400 hp Engine, 1983 US EPA Label, Retarder, Cat 16-Speed Automatic Transmission, 52160 lb Rears, 56000 lb GVWR, 11R24.5, Double Frame, Hendrickson Spring over Walking Beam Suspension, 188 in Wheelbase, PTO, Tail Roll, DP Manufacturing Inc. Winch, Pintle Hitch, Air Sliding 5th Wheel

Cummins NTC-400 6 Cylinder 855 cid Diesel 400 hp Engine, 1980 US EPA Label, Allison Automatic Transmission, Differential Lock, 56000 lb GVWR, 11R24.5, Double Frame, Hendrickson Spring over Walking Beam Suspension, 187 in Wheelbase, Pintle Hitch