https://www.ford.com/cmslibs/content...F150_Oct25.pdf
Configuration of an F150 seems to be key; sort confusing so those wishing to tow best do some homework; I doubt even a dealer can keep all this stuff straight. Got this blub from pickuptrucks.com:
What's the 2019 Ford F-150's Maximum Towing Capacity?
In order to get the class-leading 13,200-pound towing capacity, you must select the base rear-wheel-drive XL trim SuperCrew with the 6.5-foot bed, 3.5-liter EcoBoost engine, Max Trailer Tow Package and 20-inch tires. The Max Trailer Tow Package adds the 3.55 electronically locking rear differential, the 36-gallon fuel tank, auxiliary transmission and engine oil coolers, a Class IV receiver hitch, an integrated trailer brake controller and an upgraded front stabilizer bar. This brings the total cost to $43,515 (all prices include destination). Four-wheel drive lowers the towing capacity for this configuration to 12,900 pounds.
As you move up through the trim levels, more features and weight are added, which takes away from weight that can be used as payload or tongue weight from a trailer, so higher trims have lower payload and trailering capabilities. Ford's F-150 towing selector provides all the towing capacities. The max trailer rating can only be achieved by conventional towing with a weight distribution hitch. Without a weight distribution hitch, the F-150 is limited to a towing capacity of 5,000 pounds.
What's the F-150's Fifth-Wheel Towing Capacity?
The maximum fifth-wheel towing capacity is 12,100 pounds in the 4x2 XL regular cab with the 8-foot bed, the 3.5-liter EcoBoost, 3.55 axle ratio and Max Trailer Tow Package. The total cost for this vehicle is $33,540. Ford is the only manufacturer to list fifth-wheel towing capacities for its half-ton trucks. Because of this, we'll focus on conventional towing ratings.
What's the 2019 Ford F-150's Minimum Towing Capacity?
Without the Class IV trailer hitch, which is included in the Trailer Tow and Max Trailer Tow packages, all versions of the F-150 are limited to a maximum 5,000-pound towing capacity. When opting for the Class IV trailer hitch on the 3.3-liter V-6, there are three listed configurations that allow a maximum rating of 5,000 pounds. They are the regular-cab 6.5-foot bed with four-wheel drive, the SuperCab 6.5-foot bed with two-wheel drive and the SuperCrew with 5.5-foot bed and 2WD.