Jeff said: "Usually the old metal fittings are used with new hoses." Great advice !? Not hardly.
That might be true in the rare case where the "metal fittings" can be simply screwed apart or together but 99% of the time crimped ends on hoses are involved and essentially they are NEVER reused !! Most of the time they can't be reused even if one were silly enough to try. The most false kind of economy to try. I have never ever seen a shop willing to screw with the old, almost certainly questionable if not outright damaged, connectors !! That is bum info.
You, the OP, were not clear that the leak is in the two hoses themselves or only at the connectors. Obviously you need to check first to see if something threaded just needs tightening. If the hoses ARE leaking through the walls of the hose or at the swaged /crimped spot with the hose end then you need to replace the entire hose and connectors as a unit. You mentioned that the hoses take a real beating -- so after 5 years replace them! And heavier duty has to be a good idea.
I am confident your hoses have permanently attached (swaged , crimped) connectors on each end and you want to have the entire leaky hose or hoses replaced lock, stock and barrel. What you want is a long-term permanent fix. And good to put on heavier duty hoses while you are at it.
