Introduction
Caterpillar RD4 Agricultural Crawler Tractor
The Caterpillar RD4 is an agricultural crawler tractor produced in Peoria, Illinois, USA, between 1935 and 1940. This machine belongs to the early series of Caterpillar track-type tractors, designed to provide high traction and stability for demanding agricultural applications.
Engine and Performance
The tractor is powered by a 4-cylinder, liquid-cooled diesel engine with a displacement of 312.1 cubic inches (5.1 liters). With a bore and stroke of 108 x 140 mm, the engine is rated at 1400 RPM, delivering 44 horsepower, which enables consistent performance during heavy-duty field operations.
Transmission and Drive
The RD4 utilizes a gear-type transmission providing 5 forward speeds and 1 reverse speed, managed by a dry disc clutch. The crawler drive system allows the machine to distribute its weight over a larger surface area, ensuring effective traction in difficult or soft soil conditions.
Operator Environment
Designed for simplicity and direct control, the machine features an open operator station. This configuration provides the operator with clear visibility of the surrounding work area, which is essential for precise maneuvering and agricultural tasks.
Conclusion
The Caterpillar RD4 is a durable crawler tractor tailored for agricultural work where traction is critical. Its mechanical simplicity, combined with a robust diesel powertrain, makes it a notable machine from the 1935-1940 production era, suitable for heavy-duty field work and land preparation.
Production Information of Caterpillar, RD4
- Agricultural Crawler tractor
- Built in Peoria, Illinois, USA
| Manufacturer | Caterpillar |
|---|
Engine Specifications of Caterpillar, RD4
- Caterpillar
- Liquid-cooled
- Diesel
- 4-cylinder
| Rated RPM | 1400 |
|---|---|
| Displacement | 312.1 ci [5.1 L] |
| Bore/Stroke | 4.25x5.50 inches [108 x 140 mm] |
Transmission Information of Caterpillar, RD4
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 5 forward and 1 reverse |
| Clutch | Dry disc |
Mechanical Specs of Caterpillar, RD4
- Open operator station.
| Drive | Crawler |
|---|
Power Information of Caterpillar, RD4
- Https://www.tractordata.com/farm-tractors/002/9/7/2976-caterpillar-rd4-tests.html
Where it sits
Its power puts it in the 70th percentile of 1930s models in our database (235 machines).
Frequently asked questions
How much horsepower does the Caterpillar RD4 have?
The Caterpillar RD4 delivers 44 hp[B] HP.
What years was the Caterpillar RD4 produced?
The Caterpillar RD4 was produced in 1935-1940.
What engine does the Caterpillar RD4 have?
The Caterpillar RD4 is powered by a Diesel, 4-cylinder engine.
What transmission does the Caterpillar RD4 use?
The Caterpillar RD4 uses a Gear transmission.