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 D12-395 6 Cylinder 12.1 L Ultra Low Sulfur Diesel 395 hp Engine, 2005 US EPA Label, Engine Brake, Eaton Fuller FRO-14210C 10-Speed Manual Transmission, 12350 lb Front Axle, 20000 lb Rears, 3.58:1 Axle Ratio, Air Ride Cab, 295/75R22.5, Volvo Air Ride Suspension, 156 in Wheelbase, Dual Fuel Tanks

Cummins ISX ST2 6 Cylinder Ultra Low Sulfur Diesel 400 hp Engine, 2015 US EPA Label, Requires Diesel Exhaust Fluid, Engine Brake, Eaton Fuller FRO-15210C 10-Speed Manual Transmission, 12000 lb Front Axle, 20000 lb Rears, 3.42:1 Axle Ratio, 32000 lb GVWR, Air Ride Cab, 275/80R22.5, Volvo Air Ride Suspension