Built in 1945 by Consolidated Shipbuilding of Morris Heights, New York as the YTB-540 "Quileute" (hull #3227) for the United States Navy. In 1962, she was redesignated as YTM-540.
In 1977, the tug was acquired by the Calumet Marine Towing Corporation of Chicago, Illinois. Where she was renamed as the Lenny B.
She was later acquired by Westar Marine Services Incorporated of San Francisco, California. Where the tug was renamed as the Orion.
Her powerplant consists of two EMD 12-645-E6 diesels turning two propellors. For a rated 3,000 horsepower.