Am I ordering the correct part? How to change

[BurtShaver]

I was putting some trailers up on my front lawn a month ago or so with my 2016 Ram 2500 with 6.4 and the brake peddle went to the floor very easily, could still get it to stop, but only stopped during the last inch or so of travel. I couldn’t see any leaks, did some searching and figured it was the master cylinder from what I found on my searches.
Fast forward to this past Tuesday when I was moving the truck and I noticed brake fluid hitting the snow from around the front left wheel, got my wife to press the brake peddle while I looked under the hood and fluid was squirting from a line that comes from the master cylinder. There are 2 lines to the master cylinder and the one that’s leaking is towards the rear of the truck in the master cylinder. The lines appear as though they were installed at factory so that they are rubbing and have wore a hole through the one. Looks to me like it’s solid brake line that transitions to a braided line and then goes down under a plastic cover roughly 8 inches below the master cylinder
I’ve been searching on Rock Auto as well as some mopar websites and it appears to me that it is part number 68204418AC ,that I need for 55.57CAD from Rock Auto? They call it master cylinder to HCU tube assembly. There is another master cylinder to HCU tube assembly listed 68204421AC that is 145.12CAD at Rock Auto.
Can anyone confirm that it is one of these lines that I need? Or even better which of these lines I need if in fact it is one of them? I think it is, but want to be sure before I order.
The picture I took today under the hood is not very good, I will post it anyways.
Tomorrow I can go out and get some better pictures and try and get a better look of the exact bends in the line to help identify if against the pics on rock auto

 

[tron67j]

Try PM to Benny at All MOPAR Parts in vendor section. You can get correct OEM part for a decent price.

 

[Daw14]

As said above , get with Benny , he should be able to point you in the correct direction.

 

[BurtShaver]

Again, I’m not getting any notifications when there is a reply on my thread.
Anyways, corroborating the correct part number was easy enough, I went out to have a real goof look at the bends so I could be sure of which of these two lines it was coming from the master and found that each line had grease covered tags on them. So it is in fact the cheaper line 68204418AC
Looking fo any advice on changing this line. My plan was going to be to take the old line off fist at the master and then use a plastic cone that comes with my mity vac to plug th hole into the master, actually I will loosen each fitting first at the master and at HCU so that I know it will go quick. So then after loosening both as mentioned I will take line off at master first, plug master with rubber cone/cap, then take of line at HCU. When putting back on, I was going to put it on at the master first so that a little fluid would make its way through the new line reducing any air in the system then make connection at HCU, then bleed brakes at all 4 wheels.
Could quick questions there is a plastic cover over the HCU that I will need to remove to make connecting easier/possible. Do I have to take inner wheel fender off to get that off?
Also I’ve ordered the part since it was only 55.57 but could I have just used some NiCop that I have and re use the fittings? The OEM lines have a section that is braided flexible?