Looks to me like the reproducer forgot to crimp the end. You can see the crimping on mine adjacent to the yellow, but it is not on Roger’s photo. Is this what happened to Grant?
So yours might be repairable if you can find or make the crimping tool. It looks like a big pliers.
Brake hoses are another example where this is done.
On the engine end I have a larger diameter steel sheath over the rubber covered smaller outer sheath, probably to protect it from contact with the hot engine, with a separate little crimping sleeve about 3/8" long where both outer sheaths are joined to the short aluminum outer end tube.