I just bought a trailer receiver from my dealer for my 2005 Magnum. They gave me part # 82209575. Everything else I have read shows everyone using part # 82207811AB. The paperwork that comes with the one I have says it fits the Magnum, 300C, and Charger. Does anyone know the difference between the two? I don't want to go through installing it to find I should have bought the other one.

 

I bought my trailer receiver from my Dodge dealer.>>> I have a Magnum RT.>>> Part number is 822078811 for receiver>>>ball and hitch flat adapter #82208642>>>ball (2") #82401103>>>wiring harness #82208926>>>>dealer installed for me and it works great. Remove adapter and trailer hitch becomes a hidden one.

 

I have both mounts.
One has the "flat" stock to mount a trailer ball to it and put your trailer directly on it.
The other is a 2" square receiver to use a bike rack (which I have done) or a higher ball mount to level your trailer.
Hope this helps.