Jeep Willys MB/CJ-2A
The Jeep Willys MB and its civilian successor the CJ-2A represent the genesis of the Jeep legend. The MB was the original military Jeep that served with distinction in World War II, earning a reputation for reliability, versatility, and go-anywhere capability that would define the brand for decades. The CJ-2A (Civilian Jeep) was the postwar adaptation that brought the Jeep's capabilities to farmers, ranchers, and adventurers.
The Willys Go Devil engine, a 134 cubic-inch (2,199cc) inline-four with L-head (flathead) configuration, produced 60 horsepower. While modest in output, the engine was designed for durability and simplicity, capable of running on low-quality fuel and surviving in conditions that would destroy more sophisticated powerplants. The engine's low-end torque and steady power delivery were perfectly suited to the Jeep's intended role.
The MB/CJ-2A's part-time four-wheel-drive system, operated through a two-speed transfer case, was simple, robust, and effective. Combined with the Jeep's short wheelbase, high ground clearance, and lightweight construction, this system allowed the vehicle to traverse virtually any terrain. The military MB famously served in every theater of World War II, from the beaches of Normandy to the jungles of the Pacific.
The CJ-2A, introduced in 1945, adapted the military vehicle for civilian use. Changes included a tailgate, side-mounted spare tire, larger headlights, and an external fuel cap. The CJ-2A also offered a power take-off that allowed the engine to drive agricultural implements, making it a versatile farm vehicle as well as a recreational one.
Today, both the MB and CJ-2A are highly collectible, valued both for their historical significance and their enduring capability. Military MBs, particularly those with documented wartime service history, command premium prices. CJ-2As appeal to a broader market of Jeep enthusiasts who appreciate the vehicle's fundamental simplicity and the purity of its design.
The Willys MB/CJ-2A is more than a vehicle -- it is a cultural icon that represents American ingenuity, rugged capability, and the triumph of practical design. Its influence on subsequent automotive design, from the modern Jeep Wrangler to countless military vehicles worldwide, cannot be overstated.
Verify whether the vehicle is a military MB/GPW or civilian CJ-2A, as values differ. Check the frame for rust and fatigue cracks. The Go Devil engine is simple and durable but check for oil leaks and worn bearings. The transfer case and axles should be checked for proper operation. Many vehicles have been extensively modified or restored -- determine the level of originality. For military vehicles, provenance and documentation significantly affect value.
Military MBs were built by Willys-Overland and Ford (the Ford version was designated GPW). The CJ-2A was produced by Willys-Overland from 1945 to 1949. Combined military Jeep production exceeded 600,000 units.