| Manufacturer |
Jeep |
| Price |
- |
| Model |
CJ-3B |
| Equipment Type |
Truck-Type Tractors |
| Factory |
Toledo, Ohio, USA |
NEBRASKA TRACTOR TEST 502 2
| Description |
Gasoline 6-speed 4WD/August 28 - September 4, 1953/Link: Nebraska Tractor Test 502 file/Drawbar performance/Gear 1 used for power test./Gear 1 used for pull test. |
| Belt power (max) |
35.23 hp/26.3 kW |
| Belt fuel use (max) |
3.4 gal/hour/12.9 l/hour |
| Max power |
27.08 hp/20.2 kW |
| Max pull |
2317 lbs/1050 kg |
JEEP CJ-3B POWER
| Engine |
75 hp/55.9 kW |
| Plows |
2 (12-inch) |
| Drawbar (tested) |
27.08 hp/20.2 kW |
| Belt (tested) |
35.23 hp/26.3 kW |
ENGINE DETAIL
The Jeep CJ-3B tractor features a Willys F-134 gasoline engine with a displacement of 134.2 ci (2.2 L) and delivers 75 hp at 2400 RPM, making it suitable for moderate agricultural tasks. The use of a carburetor and oil bath air cleaner provides reliable power delivery, although the 6.9:1 compression ratio may limit fuel efficiency compared to modern engines. While its electric starter and 6-volt system enhance user convenience, the tractor's relatively lower horsepower may challenge its performance in heavy-duty applications.
| Description |
Willys F-134/gasoline/4-cylinder/liquid-cooled |
| Displacement |
134.2 ci/2.2 L |
| Bore/Stroke |
3.125x4.375 inches/79 x 111 mm |
| Power |
75 hp/55.9 kW |
| Fuel system |
carburetor |
| Air cleaner |
oil bath |
| Compression |
6.9:1 |
| Rated RPM |
2400 |
| Starter |
electric |
| Starter volts |
6 |
JEEP CJ-3B ENGINE
The Jeep CJ-3B tractor is powered by a Willys 2.2L 4-cylinder gasoline engine, providing adequate torque for agricultural tasks, though it may underperform in heavy-duty applications due to its vintage design. Its 10.5-gallon fuel tank offers reasonable range for light farm work, but frequent refueling could be a challenge for extended operations. Ideal for small-scale farming or restoration projects, the CJ-3B’s simplicity can be both an advantage for ease of maintenance and a limitation in terms of modern efficiency and capabilities.
| Description |
Willys 2.2L 4-cyl gasoline |
| Fuel tank |
10.5 gal/39.7 L |
TRANSMISSION
The Jeep CJ-3B tractor utilizes a Borg-Warner T-90 sliding gear transmission, offering 6 forward gears and 2 reverse gears, ideal for diverse terrains. The mechanical dry disc clutch provides reliable engagement but may require more frequent maintenance compared to hydraulic systems. With a Spicer transfer case featuring two-speed operation, this setup enhances versatility in off-road scenarios, allowing for both low-torque crawling and higher-speed travel.
| Transmission |
Borg-Warner T-90 |
| Type |
sliding gear |
| Gears |
6 forward and 2 reverse |
| Clutch |
mechanical dry disc |
| Description |
Three gears (1-3) plus reverse (R) with a two-speed Spicer transfer case. |
MECHANICAL
The Jeep CJ-3B tractor features a 4x4 MFWD drivetrain, enhancing traction and stability across varied terrains, making it ideal for agricultural and off-road applications. Its manual steering and hydraulic drum brakes offer simplicity but may require more effort in maneuverability and braking compared to power-assisted systems. The 6-speed sliding gear transmission provides versatility in speed selection but may demand skilled operation to shift efficiently, potentially limiting ease of use for less experienced operators.
| Chassis |
4x4 MFWD 4WD |
| Steering |
manual |
| Brakes |
hydraulic drum |
| Cab |
Open operator station. |
| Transmission |
6-speed sliding gear |
TRACTOR HITCH
POWER TAKE-OFF (PTO)
| Rear PTO |
optional |
| Rear RPM |
540 (1.375) |
JEEP CJ-3B TIRES
The Jeep CJ-3B tractor features Ag tires in both the front and rear, with a size of 6x16, which enhances traction on uneven terrain. The uniformity in tire size contributes to stability during operation, but may limit adjustability for specific agricultural applications. This configuration is ideal for small-scale farming tasks requiring maneuverability, but may not offer optimal performance for heavy towing or larger implement usage.
| Ag front |
6x16 |
| Ag rear |
6x16 |
DIMENSIONS
| Wheelbase |
80 inches/203 cm |
| Length |
130 inches/330 cm |
| Height |
66.7 inches/169 cm |
| Shiping weight |
2037 lbs/923 kg |
| Max weight |
2937 lbs/1332 kg |
| Ground clearance |
8.25 inches/20 cm |
| Front tread |
48.25 inches/122 cm |
| Rear tread |
48.25 inches/122 cm |
DIMENSIONS & TIRES
The Jeep CJ-3B has a compact wheelbase of 80 inches, offering excellent maneuverability in tight agricultural spaces; however, this may compromise stability on uneven terrain. Weighing 2037 lbs, it is lightweight for a tractor, potentially providing better fuel efficiency, but may also have lower traction under heavy load. With 6x16 tires front and rear, it’s suitable for light to moderate ground engagement, although soil compaction could be a concern with frequent use on soft ground.
| Wheelbase |
80 inches/203 cm |
| Weight |
2037 lbs/923 kg |
| Front tire |
6x16 |
| Rear tire |
6x16 |
BELT PULLEY
| Diameter |
8 inches/20 cm |
| Width |
8 inches/20 cm |
| RPM |
1550 |
| Speed |
3246 ft/min/989.38 meters/min |
ELECTRICAL
| Ground |
negative |
| Battery volts |
6 |
