Willys MB

Produciton year 1942

The Willys MB (commonly known as a Jeep or jeep, formally as the U.S. Army Truck, 1/4 ton, 4x4) and the Ford GPW are four-wheel drive utility vehicles that were manufactured during World War II. Produced from 1941 to 1945, it evolved post-war into the civilian Jeep CJ, and inspired both an entire category of recreational 4WDs and several generations of military light utility vehicles.

Advances in early 20th-century technology resulted in widespread mechanisation of the military during World War I. The United States Army deployed four-wheel drive trucks in that war, supplied by Four Wheel Drive Auto Company (FWD) and the Thomas B. Jeffery Company. By the eve of World War II the United States Department of War had determined it needed a light, cross-country reconnaissance vehicle.

Anxious to have one in time for America’s entry into World War II, the U.S. Army solicited proposals from domestic automobile manufacturers for a replacement for its existing, aging light motor vehicles, mainly motorcycles and sidecars, and some Ford Model T’s.[4][5] Marmon-Herrington presented five 4×4 Fords in 1937, and American Bantam delivered three Austin roadsters in 1938.[6] Recognizing the need to create standard specifications, the Army formalized its requirements on July 11, 1940, and submitted them to 135 U.S. automotive manufacturers.

Number of passengers in that vehicle


More details about Willys MB

Interesting Facts

In 1950, the first post-war military jeep, the M38 (or MC), was launched, based on the 1949 CJ-3A. In 1953, it was quickly followed by the M38A1 (or MD), featuring an all-new “round-fendered” body in order to clear the also new, taller, Willys Hurricane engine. This jeep was later developed into the CJ-5 launched in 1955. Similarly, its ambulance version, the M170 (or MDA), featuring a 20-inch wheelbase stretch, was later turned into the civilian CJ-6.

Download Manual

Reprint of the original manual published by Willys- Overland Motors, Inc. for the US Government in 1942. Technical Manual TM-10-1513 – the complete maintenance manual for Willys MB and Ford GPW jeeps. Many photos & line drawings, including a complete tool list, 18 page section in Russian. 158 pgs. 8.5″ x 11″. SC –Lance Frickensmith Review Of Books

Download PDF - AMB

Perfect Quality

  • Technical officiency 95% 95%
  • Consumption level 76% 76%
  • Full documentation 93% 93%
  • New original parts 66% 66%
  • Activity during the war 92% 92%
  • Availability on the market 3% 3%

Technical Specifications

Cooling System
11 1/2 qt
Crankcase (refill)
4 1/2 qt
Differential (each)
2 1/2 qt
Fuel Tank (M38A1)
17 gal
1 qt
Dimensions (M38A1)
Height, overall maximum
73 3/4”
Height, lowest operable
56 1/2”
Length, overall, maximum
138 5/8”
Width, overall maximum
60 7/8”
Ground Clearance minimum
Tire Size
7.00 x 16
Tire Pressure
28 psi
Tread (Front) & (Rear)
Transfer Case
Dana 18
Front Axle
Dana 25 (1952-1960) or Dana 27 (1961-1971)
Rear Axle
Dana 44
Fuel Capacity
17 Gal
2-Piece Windshield, 24 Volt Electrical
Engine Type
4-134 F Head Motor (475)
(All Years)
Engine Type
134 CID (2.2L) F4-134 Hurricane 14
Number of Cylinders
Cu-In. Displacement
134.2 cu. in. (2199,53 cm 3)
72@4000 rpm
114 lb-ft. (15,7 kg-m.)
Compression Ratio
6.9 to 1