The 155mm gun motor carriage M40 was an American self-propelled artillery vehicle built on a widened and lengthened medium tank M4/M4A1 chassis, with a Continental engine and with HVSS (Horizontal Volute Spring Suspension), which was introduced at the end of World War II.

Equipped with a 155mm M1A1 or M2 gun, it was designed to replace the earlier M12 gun motor carriage. Its prototype designation was the T83, but this was changed to the M40 in March 1945.

A single pilot vehicle was used in the European Theatre in 1945 by the 991st Field Artillery Battalion, along with a related 8-inch howitzer motor carriage T89, (later re-designated the M43 howitzer motor carriage) which was sometimes also equipped with a 155mm barrel. A total of 311 out of a planned 600 were completed by the Pressed Steel Car Company before the end of the war, 24 of which were later converted into M43s. From there it was deployed during the Korean War.

After World War II, the M40 was used by the British Army, who designated it 155 mm SP, M40.

This particular 1:43 scale replica of a US Pressed Steel Car Company M40 155mm Gun Motor Carriage was attached to the 991st Field Artillery Battalion, then deployed to Cologne, Germany, during March 1945. Now in stock!

Dimensions:
Length: 7-inches
Width: 3-inches

Release Date: July 2026

Historical Account: "New York, New York" - The 991st Field Artillery Battalion departed the New York port of embarkation on January 22nd, 1944, arrived in England on 28 January 1944 and moved to France on July 11th, 1944. It was attached to the 3rd Armored Division or VII Corps for most of the war, as a self-propelled unit equipped with twelve 155 mm M12 gun motor carriages. Batteries were detached to support divisions in combat as necessary. The 991st FA landed on Omaha Beach, Normandy on July 11th, 1944, where it was bombed and strafed by German airplanes within hours of landing. Battery B of the 991st was credited with firing the first shells into German soil and Battery C was given credit for its role in the capture of Aachen. The 991st was also the first American unit to use captured 155 mm enemy shells.