[1] For surface running, the boats were powered by two 475-brake-horsepower (354 kW) NELSECO diesel engines, each driving one propeller shaft.

She was launched on 19 March 1914 sponsored by Mrs. James P. Olding, wife of the commanding officer, and commissioned on 24 October 1914.

Joining the Pacific Torpedo Flotilla, K-4 operated along the coast of California, conducting constant exercises and experiments to develop the techniques of submarine warfare.

When the United States's involvement in World War I called for increased naval activity, K-4 departed Hawaii for service out of Key West, Florida, arriving 9 January 1918.

After the Armistice with Germany of 11 November 1918, K-4 operated along the East Coast training officers and men for duty in submarines.