Abstract: A coupling mechanism for coupling a plurality of fluid and electrical lines between adjacent coupled vehicles wherein a plurality of elongated flexible fluid lines and electrical lines are grouped together to form a single elongated flexible group line with one end of the group line connected to respective fluid and electrical sources on one vehicle and the other end of the group line connected to respective fluid and electrical loads on the other vehicle through a single hybrid or combination fluid and electrical plug and socket arrangement. The plug and socket arrangement is comprised of a mounting bracket for the plug and a mounting bracket for the socket, one of which is secured to the second vehicle. The mounting brackets are adapted such that one bracket is readily hung on the other bracket and thereby automatically prealigns the plug and socket for engagement.