Introduction
Caterpillar Twenty-Five Agricultural Crawler Tractor
The Caterpillar Twenty-Five is a classic agricultural crawler tractor manufactured by Caterpillar in Peoria, Illinois, between 1931 and 1933. This model represents a specific stage in the manufacturer's early series, serving as a direct successor to the Caterpillar Twenty and a predecessor to the Twenty-Eight.
Engine and Power
The tractor is powered by a liquid-cooled, four-cylinder gasoline engine with a displacement of 277 cubic inches (4.5 liters). It operates at a rated speed of 1100 RPM and produces 33 horsepower. The bore and stroke dimensions are 4.00 by 5.50 inches, providing the necessary torque for agricultural traction tasks.
Transmission and Drive
The drivetrain features a gear-type transmission providing three forward speeds and one reverse gear. Power is transferred to the tracks via a dry disc clutch, a standard configuration for crawler tractors of this era to ensure durability under field conditions.
Mechanical Configuration
Designed as a crawler tractor, the Twenty-Five utilizes tracks for propulsion, which allows for improved weight distribution and traction on soft or uneven agricultural terrain. The operator station is of the open type, characteristic of the 1930s design philosophy, prioritizing accessibility and mechanical simplicity.
Conclusion
The Caterpillar Twenty-Five is a robust, specialized machine designed for heavy-duty traction work. Its mechanical simplicity and crawler-based design make it a significant historical example of 1930s agricultural engineering, suitable for collectors and historians interested in the evolution of Caterpillar's tractor line.
Production Information of Caterpillar, Twenty-Five
- The Caterpillar Twenty-Five was, basically, a renamed Twenty. In 1933, the model was renamed again, to the Twenty-Eight.
- Agricultural Crawler tractor
- Built in Peoria, Illinois, USA
| Manufacturer | Caterpillar |
|---|
Engine Specifications of Caterpillar, Twenty-Five
- Caterpillar
- Liquid-cooled
- Gasoline
- 4-cylinder
| Rated RPM | 1100 |
|---|---|
| Displacement | 277 ci [4.5 L] |
| Bore/Stroke | 4.00x5.50 inches [102 x 140 mm] |
Transmission Information of Caterpillar, Twenty-Five
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 3 forward and 1 reverse |
| Clutch | Dry disc |
Mechanical Specs of Caterpillar, Twenty-Five
- Open operator station.
| Drive | Crawler |
|---|
Power Information of Caterpillar, Twenty-Five
- Https://www.tractordata.com/farm-tractors/000/9/3/938-caterpillar-twenty-five-tests.html
Where it sits
With 33 hp[B] HP, the Caterpillar Twenty-Five sits between Twenty (32 HP) and Twenty-Eight (41 HP) in Caterpillar's range. Its power puts it in the 49th percentile of 1930s models in our database (235 machines).
Frequently asked questions
How much horsepower does the Caterpillar Twenty-Five have?
The Caterpillar Twenty-Five delivers 33 hp[B] HP.
What years was the Caterpillar Twenty-Five produced?
The Caterpillar Twenty-Five was produced in 1931-1933.
What engine does the Caterpillar Twenty-Five have?
The Caterpillar Twenty-Five is powered by a Gasoline, 4-cylinder engine.
What transmission does the Caterpillar Twenty-Five use?
The Caterpillar Twenty-Five uses a Gear transmission.