Following the Japanese attack, Hoga, along with other yard tugs and support craft, was pressed into additional duty cleaning debris from the harbor and the salvage efforts that began immediately on the sunken and battle-damaged vessels. This effort continued through the war years; Hoga was an active participant in this as well as in the continuing function of Pearl Harbor as an active Navy Base with increased responsibilities and duties as the springboard for the eventual reconquest of occupied Pacific islands and territories and victory over Japan. During the war Hoga was redesignated as a YTB (Yard Tug, Large) on 15 May 1944. Salvage work and heavy duty continued after the war, but in 1948, Hoga was transferred on loan to the Port of Oakland for use as a fireboat through the efforts of Congressman George P. Miller.
