Ford Motor Company Super Duty Chassis Cab

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Ford Super Duty Chassis Cab
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Years of manufacture 1998 to present
Length 222.2 in to 652.6 in
Width 79.9 in to 95.5 in
Power/Fuel Diesel, Gasoline, CNG, LPG
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The Ford Motor Company Super Duty Chassis Cab is a heavy-duty pickup truck chassis used for cutaway commercial buses. It is available in three types: the F-450, F-550 and F-600, which are differentiated by their gross vehicle weight rating (GVWR); with the F-450 having the lowest GVWR and the F-600 having the highest. The Super Duty Chassis Cab is not to be confused with the unrelated Econoline van or medium-duty F-650 and F-750 which also carry Super Duty branding.

Design history

The Super Duty Chassis Cab was introduced in 1998 as a 1999 model when the heavy-duty F-Series pickups were spun off into their own line. With cutaway vehicles, the styling of the cab remains consistent regardless of the make and model of bus body. As of 2018, four generations of the Super Duty have been produced; the first three being various revisions of the original design, while the fourth and current generation is an all-new design sharing no components with its predecessors. However, the first three generations shared their cabs with Ford's seventh- and eighth-generation medium-duty trucks, while the fourth generation uses the same cab as all contemporary Ford light to mid-weight trucks except for the Ranger and medium-duty models.


The Super Duty Chassis Cab was introduced with Ford gasoline engines and International diesel engines. In 2010, the International engines were phased out in favor of Ford's in-house diesel engine. Brazilian-produced variants of the Super Duty used Cummins diesel engines instead of International and were also available in right-hand drive for export to Australia and South Africa. Many of the gasoline engines powering the Super Duty have the capability to run on alternative fuels such as CNG and LPG (propane). The Super Duty can be equipped from the factory with rear-wheel or four-wheel drivetrains, although aftermarket front-wheel drive conversions exist and are used for applications such as the StarTrans Bus Senator SII LF. The F-600 model, boasting a 22,000 lb GVWR, was the most recent addition to the Super Duty lineup, having been introduced for the 2020 model year.



  • Ford 4R100 4 speed automatic (1998-2003.5)
  • Ford TorqShift 5R110W 5 speed automatic (2003.5-2010)
  • Ford TorqShift 6R140 6 speed automatic (2010-2019)
  • Ford/General Motors 10R140 10 speed automatic (2020–present)
  • ZF S6-650 6 speed manual (1998-2010)
  • Ford 5-speed manual (Mexico only, 2008–present; Venezuela 2008–2016)


  • 137 in (3,480 mm)
  • 141.8 in (3,602 mm)
  • 158 in (4,013 mm)
  • 156.2 in (3,967 mm)
  • 172.4 in (4,379 mm)


  • 14,000 lb (for F-450)
  • 18,000 lb (for F-550)
  • 22,000 lb (for F-600)


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