Need or want?...I don't think its warranted on that short of a trailer, but it will pull smoother with one.
It's a 4600 lb trailer, and your truck weighs over 6000 lbs. You might be fine with a standard receiver hitch rated above 5,000 lbs. The step bumper hitch is a nonstarter.
The F150 with max tow plus the Ecoboost and the right axle is usually good for a 10,000 lb trailer and a hitch weight of at least 1000 lbs. Simply saying F150 will get you all sorts of answers that might be completely wrong.
It's a 4600 lb trailer,
If you fill it up, it could end up having close to 700 pounds on the tongue. Crawl under your truck, and see what the limits for the receiver are with and without a WD hitch...(on the sticker on the underside of the receiver).
But to save you the effort, as others have posted - YES, you will need a WD hitch
The trailer will pull better with a WD hitch.
I started out with round bar hitch on my first RV. The WD bars pop into the hitch from the bottom and connect to the trailer with a chain that has to be levered into place. Then you install a separate anti-sway bar that you need to remove before backing up. It actually worked very well for towing, but it was a bit of a hassle connecting and disconnecting.
I've switched to an Equal-I-zer. Its more expensive but easier.
Thinking I would like to buy a 17mke and wondering what kind of hitch I need. Tow vehicle will be a F150 with max tow package.