Caterpillar D7
Power
102 hp[B] hp
Production
1940-1954
Engine
Diesel, 4-cylinder
Transmission
Gear
From the same series:
Introduction
Caterpillar D7 Agricultural Crawler Tractor
The Caterpillar D7 is a heavy-duty crawler tractor produced between 1940 and 1954. Manufactured in Peoria, Illinois, this machine was designed for demanding agricultural and earthmoving applications, serving as a significant model in the evolution of tracked machinery.
Engine and Performance
The tractor is powered by a liquid-cooled, 4-cylinder Caterpillar diesel engine. With a displacement of 831 cubic inches (13.6 liters) and a rated speed of 1050 RPM, it delivers 102 horsepower. The engine system includes an oil bath air cleaner and requires 72 quarts (68.1 liters) of coolant and 22 quarts (20.8 liters) of oil. Starting is facilitated by a dedicated 2-cylinder pony engine.
Transmission and Steering
The D7 utilizes a gear-type transmission providing 5 forward speeds and 4 reverse speeds. Power is transferred through a dry metallic disc clutch. Steering is achieved via manual clutches, allowing for precise control of the tracks, while stopping is managed by contracting band brakes. The transmission housing has an oil capacity of 40 quarts (37.9 liters).
Dimensions and Undercarriage
This crawler tractor features a rugged design with an open operator station. It is equipped with 20-inch tracks, which provide the necessary surface area for operation on soft or uneven ground. The machine has a total weight of 24,330 lbs (11,036 kg), ensuring high traction capabilities for heavy pulling tasks.
Conclusion
The Caterpillar D7 is a robust, mechanically driven crawler tractor engineered for heavy-duty traction and field work. Its design reflects the technical standards of the 1940s and 1950s, emphasizing durability and mechanical simplicity for agricultural operations.
Production Information of Caterpillar, D7
- Agricultural Crawler tractor
- Built in Peoria, Illinois, USA
| Manufacturer | Caterpillar |
|---|
Engine Specifications of Caterpillar, D7
- Caterpillar
- Liquid-cooled
- Diesel
- 4-cylinder
| Coolant capacity | 72 qts [68.1 L] |
|---|---|
| Displacement | 831 ci [13.6 L] |
| Rated RPM | 1050 |
| Bore/Stroke | 5.75x8.00 inches [146 x 203 mm] |
| Oil capacity | 22 qts [20.8 L] |
| Starter type | 2-cylinder pony engine |
| Air cleaner | Oil bath |
Transmission Information of Caterpillar, D7
Transmission variants 1
| Type | Gear |
|---|---|
| Oil capacity | 40 qts [37.9 L] |
| Gears | 5 forward and 4 reverse |
| Clutch | Dry metallic disc |
Transmission variants 2
| Type | Gear |
|---|---|
| Oil capacity | 40 qts [37.9 L] |
| Gears | 5 forward and 4 reverse |
| Clutch | Dry metallic disc |
Mechanical Specs of Caterpillar, D7
- Open operator station.
- Contracting band brakes
| Drive | Crawler |
|---|---|
| Steering | Manual clutches |
Power Information of Caterpillar, D7
- Https://www.tractordata.com/farm-tractors/002/9/8/2980-caterpillar-d7-tests.html
Where it sits
With 102 hp[B] HP, the Caterpillar D7 sits between RD7 (75 HP) and D7C (128 HP) in Caterpillar's range. Its power puts it in the 97th percentile of 1940s models in our database (263 machines).
Frequently asked questions
How much horsepower does the Caterpillar D7 have?
The Caterpillar D7 delivers 102 hp[B] HP.
What years was the Caterpillar D7 produced?
The Caterpillar D7 was produced in 1940-1954.
What engine does the Caterpillar D7 have?
The Caterpillar D7 is powered by a Diesel, 4-cylinder engine.
What transmission does the Caterpillar D7 use?
The Caterpillar D7 uses a Gear transmission.