On July 6, 1948, the Unit was again reactivated at Fort Ord, Ca. and was later reorganized and redesignated on October 1, 1963, as Headquarters and Headquarters Company, 4th Supply and Transport.
The unit served gallantly during the Vietnam War and received participation credit for its roles in Counteroffensive, Phase II; Counteroffensive, phase III; Tet Counteroffensive; Counteroffensive, Phase IV; Counteroffensive, Tet 69/Counteroffensive; Summer-Fall 1969; Winter-Spring 1970; Sanctuary Counteroffensive; and Counteroffensive, Phase VII. After the Vietnam war, Headquarters and Headquarters Company, 4th Supply and Transportation Battalion was inactivated at Fort Carson, Co, on April 15, 1985.