2021 Chassis Cab



When you want to get the most done, on the job site or over the road, our Super Duty® Chassis Cab delivers with its ruggedly engineered fully boxed steel under-cab frame — plus beefy front suspension, chassis and driveline components. Today’s Super Duty® is more capable than any of its predecessors, hauling and towing with strength.
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Construction worker walking near 2021 Ford Super Duty Chassis Cab with upfit at worksite

THE F-600

Experience the capability of a Class 6 medium duty truck in the smaller and familiar package of a Class 5 chassis cab. The F-600 features a 15,090-lb. maximum payload rating and is able to tow up to 34,500 lbs.20  It boasts a GCWR of 43,000 lbs.20 , and higher-weight-rated 19.5'' tires allow it to achieve a GVWR of 22,000 lbs.20 . The 2021 F-600 offers a standard class-exclusive* 7.3L V8 gas engine, and an available 6.7L engine.

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*Class 6-7 Conventional Chassis Cabs.

2021 Ford Super Duty Chassis Cab F 600 with upfit near additional vehicle with mountains in background


Reducing body weight and making the frame eight times stiffer than before — together, these increase the payload in today’s generation of the Super Duty® Chassis Cab. And that’s a big reason why F-550 reaches a best-in-class maximum payload rating* of 12,750 lbs. (5,783 kg), while the new F-600 can haul a maximum of 15,090 lbs. (6,844 kg).**

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See label on door jamb for carrying capacity of a specific vehicle.

*Max available payload on F-550, 7.3L, Regular Cab, 80'', 4x2. Class 3-5 Conventional Chassis Cab.

**Max available payload on F-600, 7.3L, Regular Cab, 60'', 4x2.

2021 Ford Super Duty Chassis Cab with dump body at worksite
2021 Ford Super Duty Chassis Cab with flatbed body and flatbed trailer being driven on road


When the job calls for towing huge loads, the Super Duty® Chassis Cab lets you do just that, thanks to the heavier and stronger frame components and driveline of today’s generation of the Ford Super Duty. The 2021 Super Duty Chassis Cab features max gooseneck towing of 34,500 lbs.,* and you can choose from Trailer Tow Packages, standard or high capacity.

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*Max available gooseneck tow rating on F-600, 6.7L, Regular Cab, 60” 4x2.

Side view of 2021 Ford Super Duty Chassis Cab with upfit being driven on the road near grass and trees


Take the fully boxed under-cab and redesigned C-channel aft-of-cab frame built of high-strength steel — plus the heftier components of the suspension, chassis and driveline. Now add the outstanding hauling and towing capabilities of this Super Duty® and you’ve got an impressive gross combination weight rating of 40,000 lbs. (18,143 kg) on F-550. But we didn't stop there; the F-600 takes things even further, with an incredible GCWR of 43,000 lbs. (19,504 kg) when equipped with the available 6.7L Power Stroke® V8 Turbo Diesel Engine. 
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Upfit bigger with the Ford Super Duty® Chassis Cab. Some of the weight savings from the high-strength, military-grade, aluminum-alloy body were reinvested into heavier-duty axle and front suspension components, resulting in a maximum front gross axle weight rating of 7,500 lbs.* Additionally, all Super Duty Chassis Cab F-600 models come with a standard rear GAWR of 15,500 lbs.

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*Max GAWR of 7,500 lbs. available on F-450/F-550 with Extra-Heavy-Duty Suspension Package. Standard on F-600.

Construction vehicle dumping dirt into back of 2021 Ford Super Duty Chassis Cab with aerial lift upfit
2021 Ford Super Duty Chassis Cab with utility box upfit and trailer in tow


Super Duty® comes with standard AdvanceTrac with Roll Stability Control (RSC)19  and trailer sway control19  on single- and dual-rear-wheel models. Both systems use gyroscopic sensors and apply a combination of reduced engine power and selective wheel braking to help maintain control of the vehicle and the trailer in tow19 .
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