6 Cylinder Ultra Low Sulfur Diesel Engine, 24550 Engine hrs, Eaton Fuller 7-Speed Manual Transmission, 12000 lb Front Axle, 22700 lb Rears, 34700 lb GVWR, Air Ride Cab, 295/75R22.5 Front Tires, 275/80R22.5 Rear Tires, Spring Suspension, 143 in Wheelbase

Mack 6 Cylinder Diesel Engine, 2004 US EPA Label, 27178 Engine hrs, Eaton Fuller 7-Speed Manual Transmission, 12000 lb Front Axle, 22700 lb Rears, 34700 lb GVWR, Air Ride Cab, 275/80R22.5 Front Tires, 295/75R22.5 Rear Tires, Spring Suspension, 142 in Wheelbase

Mack 6 Cylinder Diesel Engine, 23122.8 Engine hrs, Engine Brake, Manual Transmission, 12000 lb Front Axle, 23000 lb Rears, 35000 lb GVWR, 11R22.5, Air Ride Suspension, 154 in Wheelbase, Dual Fuel Tanks

Mack E7 Diesel 310 hp Engine, 2002 US EPA Label, Eaton Fuller Manual Transmission, 12000 lb Front Axle, 22700 lb Rears, 34700 lb GVWR, 275/80R22.5, Air Ride Suspension, 152 in Wheelbase, Dual Fuel Tanks