Introduction
Caterpillar Twenty-Eight Agricultural Crawler
The Caterpillar Twenty-Eight is an agricultural crawler tractor manufactured in Peoria, Illinois, USA. Produced between 1933 and 1935, this model serves as a historical example of early 20th-century tracked machinery designed for primary agricultural operations.
Engine and Performance
The machine is powered by a 4-cylinder gasoline engine with liquid cooling. It features a displacement of 277 cubic inches (4.5 liters) and operates at a rated speed of 1100 RPM. The engine produces 41 horsepower, providing the necessary torque for field traction. The air intake is protected by an oil bath air cleaner, a standard filtration system for the era to manage dust in agricultural environments.
Drivetrain and Transmission
Power is transferred to the tracks via a gear-type transmission offering three forward speeds and one reverse speed. This configuration allows for basic speed adjustments suitable for towing heavy implements. The tractor is equipped with a rear power take-off (PTO) operating at 540 RPM with a 1.375-inch shaft diameter, enabling the operation of stationary or towed equipment.
Mechanical Configuration
As a crawler tractor, the Twenty-Eight utilizes tracks for propulsion, which provides increased surface area for weight distribution and traction on soft or uneven terrain. The machine has a total operational weight of 7,870 lbs (3,569 kg). The operator station is of the open type, providing the operator with direct visibility of the surroundings and the implements being utilized.
Conclusion
With a total of 1,171 units manufactured, the Caterpillar Twenty-Eight represents a specific segment of mid-1930s crawler tractors. Its design, characterized by a gasoline engine and a simple gear-based drivetrain, was intended for reliable performance in demanding agricultural traction tasks.
Production Information of Caterpillar, Twenty-Eight
- Agricultural Crawler tractor
- Built in Peoria, Illinois, USA
| Manufacturer | Caterpillar |
|---|---|
| Total built | 1171 |
Engine Specifications of Caterpillar, Twenty-Eight
- Caterpillar
- Liquid-cooled
- Gasoline
- 4-cylinder
| Air cleaner | Oil bath |
|---|---|
| Displacement | 277 ci [4.5 L] |
| Rated RPM | 1100 |
| Bore/Stroke | 4.1875x5.50 inches [106 x 140 mm] |
Transmission Information of Caterpillar, Twenty-Eight
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 3 forward and 1 reverse |
Transmission variants 2
Mechanical Specs of Caterpillar, Twenty-Eight
- Open operator station.
| Drive | Crawler |
|---|
Power Information of Caterpillar, Twenty-Eight
| Rear PTO Type | 540 (1.375) |
|---|
Where it sits
With 41 hp[B] HP, the Caterpillar Twenty-Eight sits just above Twenty-Five (33 HP) in Caterpillar's range. Its power puts it in the 63th percentile of 1930s models in our database (235 machines).
Frequently asked questions
How much horsepower does the Caterpillar Twenty-Eight have?
The Caterpillar Twenty-Eight delivers 41 hp[B] HP.
What years was the Caterpillar Twenty-Eight produced?
The Caterpillar Twenty-Eight was produced in 1933-1935.
What engine does the Caterpillar Twenty-Eight have?
The Caterpillar Twenty-Eight is powered by a Gasoline, 4-cylinder engine.
What transmission does the Caterpillar Twenty-Eight use?
The Caterpillar Twenty-Eight uses a Gear transmission.