M8 high-speed tractor
M8E2 high-speed tractor 1954
Type	Artillery tractor
Place of origin	United States
Service history
Used by	US Army, JGSDF
Production history
Manufacturer	Allis-Chalmers
Produced	1950 to 1955
Specifications
Mass	54,000 lb (24,000 kg)
Length	22 ft (6.731 m)
Width	10 ft 11 in (3.327 m)
Height	10 ft (3.048 m)
Crew	1 + 1
Armor	none
Main armament	1 x 0.5 inch (12.7 mm) anti-aircraft machine gun
Engine	Continental AOS-895-3 six-cylinder air-cooled petrol engine 863 hp (644 kW)
Power/weight	34.60 hp/tonnes
Operational range	180 miles (290 km)
Maximum speed	40 mph (64 km/h)

The M8 high-speed tractor was an artillery tractor used by the US Army and Marine Corps from 1950.

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.

• G-numbers (G-252)
• M-numbers

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