Super Duty Lariat FX-4 Crew Cab, 6.0L V8 Diesel Engine, 6 Disc CD Radio, Leather Seats, Tow Package, Running Boards, Keyless Entry! Super Duty models are the hard-hauling brutes in Ford's full-size pickup truck line. The F-250 is the three-quarter-ton version. Styling differences between Ford's light-duty F-150 and the Super Duty models are most evident up front, where a massive grille dominates the Super Duty's nose. This Super Duty pickup is a four-door Crew Cab with four conventional front-hinged doors. A Power Stroke 6.0-liter turbo-diesel V-8 yields 325 hp and 570 pounds-feet of torque.