Lot 162

The National Military History Center

1941-43 Autocar M3 Half-Track Armored


$38,000 USD | Sold

United States | Auburn, Indiana



Identification No.
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Manufacturer: Autocar-White-Diamond T

Production Years: 1941-1943

Engine: White 160AX, in-line, liquid-cooled, 148-hp, six-cylinder

Length: 20-feet, 3-1/2-inches (with roller)

Width: 7-feet, 3-1/2-inches

Height: 7-feet, 5-inches

Weight: 20,000-pounds

Armor: 1/4-inch, all sides - 1/2-inch, window shield

Armament: One Browning M2 .50 caliber machine gun - Demilitarized

Additional Armament: NONE on this example - Could be fitted with three M1917 or M1919A4 .30 caliber machine guns

Maximum Road Speed: 40-mph

Crew: Up to 13

Markings: US Army, 9th Armored Division, 6th Ordnance Battalion, A Company, 11th Vehicle

The M3 half-track was an improvement over the initial M2 half-track first produced in 1940. The M2 was developed in direct response to the development and deployment of the German SdKfz 251 series half-tracks. The M3 first entered service in 1941 and featured several changes from the M2. The body was 10-inches longer, and a rear door was added. The primary weapon, an M2 .50 caliber machine gun, was given a pedestal-mount, and three pintle-mounts were added to the sides and rear of the crew compartment for additional .30 caliber machine guns (none included). The M2 had a total of only two machine gun mounts on a skate-rail that surrounded the interior. The M3 half-tracks were primarily used as armored personnel carriers, as the war progressed, however, half-tracks were utilized in a wide variety of applications: armored ambulances, self-propelled artillery mounts, prime movers and radio command vehicles to name a few. The M3s were eventually superceded in production by the improved M3A1 and M3A2 models. International Harvester manufactured the similar M5 Lend-Lease series. M3s accounted for over 12,000 of the 41,000 US half-tracks produced during WWII.