M8 Tractor

The M8 High-Speed Tractor was an artillery tractor used by the US Army and Marine Corps from 1950.

M8 High-Speed Tractor
M8 HST.jpg
M8E2 high speed tractor 1954
TypeArtillery tractor
Place of origin United States
Service history
Used byUS Army
Production history
Produced1950 to 1955
Mass54,008 lb (24.948 t)
Length22 ft (6.731 m)
Width10 ft 11 in (3.327 m)
Height10 ft (3.048 m)
Crew1 + 1

1 x 0.5 inch (12.7 mm) anti-aircraft machine gun
EngineContinental AOS-895-3 six-cylinder air-cooled petrol engine
863 hp (644 kW)
Power/weight34.60 hp/tonnes
180 miles (290 km)
Maximum speed 40 mph (64 km/h)


The M8 is a full-track tractor based on the chassis of the M41 Walker Bulldog light tank. It was used to tow cargo trailers and artillery such as the Skysweeper 75 mm anti-aircraft gun and the M59 Long Tom gun. The basic M8 variant could be quickly adapted for carrying projectiles and charges. Unusually for a tractor, the M8's engine was located at the front of the cab. Some M8s were equipped with a hydraulic M5 dozer blade.


The M8 was developed following the failure of the T33 cargo-carrier, which was based on the M24 Chaffee light tank chassis. The new, standardized M8 was produced between 1950 and 1955.

See alsoEdit


  • Trewhitt, Philip (1999). Armoured Fighting Vehicles. p 309: Dempsey-Parr. ISBN 1-84084-328-4.CS1 maint: location (link)
  • TM 9-7406
  • SNL G266

External linksEdit