2016 rack and pinion hardline question

Was losing power steering fluid so went under the truck and see it leaking out of this fitting from the steering rack in pic 1 Where the hardline goes into the nut.I think I found the hose part but can’t find anywhere where you can buy only that hose or the fitting. Does the entire rack need to be replaced or can you just change the hose. Is it possible to unscrew that hardline and put a new oring or something.feel like I looked everywhere for a “right turn pressure tube” and can’t find anything for a 2016 or similar. Pic 2 and 3 shows part that I think it is

 

I had similar on my 2018. I’m not much of a do-it-yourself guy, took it to a shop. A reputable place. I am only responding based on what they told me, comparing it to your picture. I never saw what my unit looked like, but I think this is a match.They first diagnosed the unit had to be entirely replaced. When they got the unit into their hands, they decided they could try to just swap the nut/fitting, and found they could not. Overall they spent many additional hours, asserted they bought a brand new tool to do some of the work, possibly before they had pulled the unit. At the end of the day, they replaced the entire unit, deciding that they could not just replace the parts. They kept my truck overnight due to their failed attempts, and never charge me for the additional labor.