USS PGM-2, a similar PGM-1 class motor gunboat
History
United States
Name	PGM-4
Laid down	11 April 1942
Launched	27 June 1942
Commissioned	17 March 1943
Renamed	10 December 1943
Reclassified	10 December 1943
Fate	Unknown
General characteristics
Displacement	95 tons
Length	110 feet 10 inches
Beam	23
Height	10 feet 10 inches
Propulsion	2 × 1,540bhp Electro-Motive Corp. 16-184A diesel engines 2 × shafts
Speed	21 knots
Complement	28
Armament	1 × 3"/50 dual purpose guns 2 x 40 mm guns 6 × 20 mm guns 1 × twin .50 cal (12.7 mm) machine gun 1 × 60mm mortar

USS PGM-4 was a PGM-1 class motor gunboat that served in the United States Navy during World War II. She was originally laid down as an SC-497 class submarine chaser on 11 April 1942 by the Wilmington Boat Works, Inc. in Wilmington, California and launched on 7 September 1942. She was commissioned as USS SC-1053 on 17 March 1943. She was later converted to a PGM-1 class motor gunboat and renamed PGM-4 on 10 December 1943. After the war she was transferred to the Foreign Liquidations Commission on 9 June 1947. Her exact fate is unknown.

• Motor Gunboat/Patrol Gunboat Photo Archive: PGM-4
• USS SC-1053 (SC-1053)
• see PGM-3 for service details