MB
The Willys MB, commonly known as the "Jeep," is a lightweight four-wheel-drive military vehicle produced from 1941 to 1945. Designed for reconnaissance and light transport, it was extensively used during World War II. Over 600,000 units were produced, making it one of the most iconic military vehicles in history. (en.wikipedia.org)
Variants by year
1941
Model summary
Data from the ScanRacer library, organized to compare versions quickly.
Model introduction
The Willys MB, commonly known as the "Jeep," is a lightweight four-wheel-drive military vehicle produced from 1941 to 1945. Designed for reconnaissance and light transport, it was extensively used during World War II. Over 600,000 units were produced, making it one of the most iconic military vehicles in history. (en.wikipedia.org)
History
In 1940, the U.S. Army sought automotive manufacturers to develop a lightweight off-road vehicle. Among the candidates, Willys-Overland won the contract in July 1941, due to its more powerful engine and lower cost. Production began in November 1941, with notable improvements over previous prototypes, including a nine-slot front grille and non-directional tires. These features contributed to its durability and versatility in the field. (en.wikipedia.org)
Generations
The Willys MB evolved throughout its production, with minor modifications to enhance performance and ease of manufacturing. The early units, produced between November 1941 and March 1942, were equipped with a slat grille, while later models adopted a nine-slot grille to simplify production. These adjustments allowed for increased production and met the growing needs of the U.S. Army during the war. (motortrend.com)
Key differences
The main differences between the early units of the Willys MB and later models lie in the design of the front grille and manufacturing methods. The early units, produced between November 1941 and March 1942, were equipped with a slat grille, while later models adopted a nine-slot grille to simplify production. These adjustments allowed for increased production and met the growing needs of the U.S. Army during the war. (motortrend.com)
Photo recognition
To identify a Willys MB, look for a nine-slot front grille, non-directional tires, and a compact silhouette. The early units, produced between November 1941 and March 1942, were equipped with a slat grille, while later models adopted a nine-slot grille to simplify production. These distinctive features make it easier to recognize this iconic vehicle. (motortrend.com)
Important versions
The early units of the Willys MB, produced between November 1941 and March 1942, are particularly sought after by collectors due to their unique slat front grille. These rare models provide valuable insight into the evolution of the Jeep's design during World War II. (motortrend.com)
References
- Willys MB - The Jeep DatabaseJeep Database
- Willys MB - JeepModels.comJeepModels.com
- Willys MB - Military Veterans MuseumMilitary Veterans Museum
- Backward Glances: 1941 Willys MB Slat GrilleMotorTrend
- https://jeep.fandom.com/wiki/Willys_MBjeep.fandom.com
- https://automobile.fandom.com/wiki/Willys_MBautomobile.fandom.com
Frequently asked questions
- What years was the Willys MB produced?
- ScanRacer's referenced versions cover 1941.
- How many Willys MB examples are documented on ScanRacer?
- 1 published scan from 1 member, with the latest photo added in July 2026.