Why not buy the factory hitch from Mopar.com

 

From the Reese webpage.

A class III can handle 6000# with a max tongue weight of 600#

A class IV can handle 10 000# with a max tongue weight of 1 000#

(These are without weight distribution)

If it were me, I'll go with the class IV/V below and be done with it. It's $40 more then the class IV, but you'll know that it won't be the weakest link in your system.

That being said, the OEM one looks like your class III, but it is welded and not bolted on (If I remember correctly)

http://www.etrailer.com/Trailer-Hitch/Ram/1500/2015/41948.html?vehicleid=201523416

 

OE on my 1500 is Class IV

It's 'bolted-on' .. no welds that I saw when I was 'under there' ..

 

Hmmm strange. Wonder if it's the difference between factory and dealer install.

I went out to look at mine and it's welded to the bumper support (please excuse the salt and dirt)

 

As TSC stated ! I was just gonna link that website as well!

Go with a Class IV and you're covered for your trucks tow capacity!

 

You are better off with the Curt IV. And here is why. The factory unit replaces what you have under there now. It bolts to the frame and does all the stuff of what you currently have. I am talking about the round tube deal that your bumper bolts to. The curt bolts to what you have now and also to the frame. Super strong and secure and they are under $175 on Amazon.

 

Mine is a mopar dealer installed class IV. It bolts to the frame and also through the bumper step where you may find a round plastic cover/plug.

 

Class 4

Class 3