Transferred to ServRon 10 upon her arrival at Eniwetok on 18 July, Wabash pumped gasoline and lubricants to station tanker YOG-185; tended small craft; and carried Marine Corps equipment to Roi Island before moving on to the Marianas.

Soon after her arrival off Hagushi beach on 9 April, she began tending miscellaneous small craft at Okinawa through the cessation of hostilities and the first months following Japan's surrender.

She served as tender and fuel ship at Hong Kong; Hainan Island, French Indochina; Subic Bay, Philippines; and at Shanghai and Qingdao, China.

With the onset of the Korean War, Wabash was reinstated on the Navy list on 1 June 1950; enrolled in the Military Sea Transportation Service (MSTS); and designated T-AOG-4.

Inactivated on 10 September 1957, Wabash was struck from the Navy list for the second time on 8 May 1958, placed in permanent custody of the Maritime Administration, and assigned to the National Defense Reserve Fleet at Suisun Bay, California.