The Super Duty trucks are the real workhorses of the F-Series lineup. These are the industrial strength trucks available in a wide variety of body/chassis configurations, payload, and powertrain combinations for nearly any requirement. Engine choices for the F-250/350/450 include a 5.4L V-8, 6.8L V-10, and a Powerstroke® 6.0L V-8 diesel. F-650 and F-750 models can be also equipped with a Caterpillar 7.2L or Cummins 5.9L diesel engines. Transmission options include 5 and 6-speed automatics as well as 5, 6, and 7-speed manuals.