Departing Galveston, Texas, 18 April, ATA-198 steamed via the Panama Canal and San Francisco, California, for duty in the $3. She reached Pearl Harbor 1 June, then continued 7 June via Eniwetok and Ulithi towing the cargo ship Pegasus (IX-222) to the Philippines. Arriving Leyte Gulf on 18 July, she departed the 21st and reached Pearl Harbor via Kwajalein on 7 August. From 9 August to 31 October she made two towing runs to San Francisco, and then resumed harbor and barge towing duty out of Pearl Harbor. For more than three years she made periodic towing runs to Wake Island; to various islands in the Hawaiian chain, including Maui and Midway Island; and to the U.S. West Coast.