The top of the Super Duty lineup. Class 5 GVWR, the heaviest frame in the series, and the widest range of commercial body compatibility of any truck Ford makes. When the F-450 isn't enough, this is the answer.
The F-550 sits at the top of the Super Duty chassis cab lineup at Class 5 (16,001–19,500 lbs GVWR). It shares the cab with the F-450 but steps up with a heavier frame, higher axle ratings, and greater payload capacity.
The F-550 fills the gap between the F-450 and the F-650 medium-duty truck — more capability than a Class 4, but still drivable without a CDL in most applications and without the operating cost of a dedicated medium-duty.
The F-550 uses heavier frame rails and higher-rated axles than the F-450, enabling higher GVWR and greater body weight capacity. This matters when your upfit body alone weighs 4,000–6,000 lbs before loading.
The F-550 chassis supports a wider range of body lengths and weights than the F-450. Most body builders offer their full lineup on the F-550 platform because its GVWR provides payload headroom for heavy builds.
The F-550 at 19,500 lbs GVWR generally does not require a CDL when operated as a single vehicle — keeping your drivers on the road without additional licensing cost or compliance complexity. Always verify with your state DOT for specific configurations and combination vehicle rules.
The F-550 is almost universally spec'd with the 6.7L Power Stroke diesel. At Class 5 payload levels, the gas engine's torque output leaves too much capability on the table. The diesel is the commercial operator's choice.
The 7.3L V8 is available on the F-550 for operators with specific gas requirements — government fleet standardization, natural gas conversion prep, or operations in areas without reliable diesel supply. For most commercial F-550 applications, the gas engine leaves significant capability unused. No DEF or DPF maintenance required.
The 6.7L Power Stroke paired with the 10-speed TorqShift automatic is the drivetrain that makes the F-550 work. At 1,200 lb-ft of torque, it pulls loaded dump bodies, heavy flatbeds, and full service body loadouts without laboring. The preferred spec for any operator running the truck near its GVWR on a daily basis.
The F-550 is the truck for operators who've maxed out the F-450 and need more payload headroom without stepping into a full medium-duty commercial vehicle.
The F-450 and F-550 share the same cab, the same engines, and the same 19.5-inch wheels. The difference is in the frame and axle ratings. If your body builder tells you the body you want exceeds the F-450's payload capacity — or if you're running at the F-450's GVWR limit regularly — the F-550 gives you the headroom to operate safely and legally.
A practical example: a 12' service body with full compartment loading can weigh 5,000–7,000 lbs. Add the cab and chassis weight and you're at or past the F-450's limit. The F-550's 19,500 lb GVWR gives you the margin to run that load safely every day.
The F-650 is a true medium-duty truck — different chassis architecture, air brakes on higher GVWR configurations, and a fundamentally different ownership and operating cost profile. The F-550 is the top of the pickup-derived chassis cab range. If your operation requires more than 19,500 lbs GVWR or a body longer than 16', the F-650 is the next step. For most operators, the F-550 is the sweet spot — maximum Super Duty capability without crossing into medium-duty complexity.
The F-550 is one of the most popular dump truck platforms for landscape, excavation, and construction contractors. A 5–6 yard steel or aluminum dump body fits well on the F-550 chassis with a long wheelbase cab. Hydraulic hoist systems from Reading, Crysteel, and Rugby are common upfitter choices.
Steel and aluminum flatbeds from 12' to 16' are a common F-550 configuration. The extended wheelbase chassis supports longer bodies with proper weight distribution. Popular for equipment hauling, material delivery, and agricultural transport.
Knapheide, Reading, and Maintainer service bodies in the 11'–14' range paired with 4,000–8,000 lb cranes are within F-550 payload capacity. This is the dominant configuration for pipeline, utility, and heavy equipment service contractors.
The F-550 is the most popular platform for 19-foot rollback tow trucks and light wrecker builds rated up to 12,000 lbs. Century, Jerr-Dan, and Dynamic bodies are commonly upfitted on the F-550 chassis cab.
The F-550 is most commonly ordered as a cab-and-chassis and upfitted by an authorized body builder. Peoria Ford coordinates with regional body builders for complete turnkey builds — cab-and-chassis delivery, body install, and final vehicle delivery to your fleet. Fleet pricing available on multi-unit orders. National delivery to all 48 contiguous states with full documentation.
Tell us your intended upfit, body length, and payload requirement. We'll match you to the right F-550 configuration and connect you with Peoria Ford's commercial fleet team.