The Jeep CJ-3A 4 x4 utility truck, produced from 1949 to 1953 by Willys-Overland, represents a key evolution in the Jeep lineage. As a robust and reliable utility vehicle, the CJ-3A maintained the utilitarian design and versatile functionality that made its predecessors, the Willys MB and CJ-2A, iconic.
Powered by the dependable 4-134 L Head Motor, also known as the “Go-Devil” engine, this model offered improved performance and durability.
Jeep CJ-3A (1949-1953) Dimensions
| Length (overall) | 129.5 in (329 cm) |
| Width (overall) | 59 in (150 cm) |
| Height (Top Up) | 67 in (170 cm) |
| Ground clearance | 8.7 in (22 cm) |
| Wheelbase | 80 in (203 cm) |
| Tire Size | 6.00-16 (Front 26 psi, Rear 28 psi) |
| Weight (curb) | 2,205 lb (1,000 kg) |
| Weight (shipping) | 2,100 lb (957,1 kg) |
| Weight (gross) | 3,500 lb (1,587.5 kg) |
Jeep CJ-3A Engine Specifications
| Engine Model | 4-134 L Head Motor (463) (All Years) |
| Displacement | 134 cu in (2.2 L) |
| Compression Ratio | 6.48:1 |
| Number of Cylinders | 4 |
| Power (gross) | 60 hp (45 kW) @ 4000 rpm |
| Torque | 105 ft-lb (142 N-m) @ 2000 rpm |
| Fuel Capacity | 10.5 gal (39.7 L) / Under Drivers Seat |
Jeep CJ-3A Axles & Transmission Specs
| Transmission | 3-speed Borg-Warner T-90 manual |
| Transfer Case | 2-speed Dana 18 |
| Front Axle | Dana 25 |
| Rear Axle | Dana 44 |
| Max Speed | 60 mph (97 km/h) |
| Fuel consumption | 17 mpg (7.2 km/l) |
| Operational range | 178 mil (285-290 km) |
Jeep CJ-3A Body & Chassis Specs
| Seating Capacity | 3 to 4 |
| Body Style | 2-door open body type |
| Payload capacity (on highway) | 1200 lbs (544 kg) |
| Payload capacity (off highway) | 800 lbs (363 kg) |
Jeep CJ-3A Willys Serial Numbers
| Year | Body | Model | Start | End | Units |
|---|---|---|---|---|---|
| 1949 | CJ-3A | 10001 | 37749 | 27749 | |
| 1950 | CJ-3A | 37750 | 63784 | 26034 | |
| 1951 | CJ-3A | 451 GB1 | 10001 | 54158 | 44158 |
| 1952 | CJ-3A | 452 GB1 | 10001 | 38652 | 29652 |
| 1952 | CJ-3A ST CH | 452 GA1 | 10001 | 10013 | 13 |
| 1953 | CJ-3A | 453 GB1 | 10001 | 20617 | 10617 |
With a 3-speed manual transmission and a 2-speed Dana 18 transfer case, the CJ-3A was equipped for both on-road and off-road adventures.
Its compact dimensions, including an 80-inch wheelbase and a 59-inch width, made it maneuverable in various terrains.
The CJ-3A’s simple yet effective design, including features like a fold-down windshield and side-mounted spare tire, made it a favorite among farmers, ranchers, and outdoor enthusiasts.
This model set the stage for future Jeep vehicles, combining ruggedness with practicality.
