SMI Air Force One Bracket Fitting Recommendation

My wife just returned from a trip with our diesel pusher. When she parked the motorhome, I heard a constant hissing when she had her foot on the break. Upon further investigation, I found that the push on connection coming from the air tank mounted on the coach to the back of the female quick connect had been knocked off. I tried to re-connect the hose, but something must have broken off, because theres nothing on the back of the quick connect that allows me to push the hose connector back on and the chrome nut on the coach side of the l bracket is all scraped off. Can you tell me what parts I need? Incidentally, in the picture showing all the components, you show the L bracket, the female quick connect, the protective cap and the push on hose connector as one assembly. I do know she bottomed out getting in and out of one campsite during the trip. Thanks!

asked by: Hans K