Caterpillar D7G SA
Power
250 hp
Production
1980-1986
Engine
Turbocharged aftercooled diesel, 6-cylinder
Transmission
Gear
From the same series:
Introduction
Caterpillar D7G SA Agricultural Crawler Tractor
The Caterpillar D7G SA is a specialized agricultural crawler tractor produced between 1980 and 1986. Designed for heavy-duty field operations, this tracked machine balances significant engine power with the stability required for demanding soil cultivation and traction tasks.
Engine and Performance
The tractor is powered by the Caterpillar 3306, a liquid-cooled, 6-cylinder, turbocharged and aftercooled diesel engine. With a displacement of 638 cubic inches (10.5 liters), it generates 250 horsepower (186.4 kW) at a rated speed of 2000 RPM. The drawbar power is rated at 200 hp (149.1 kW), confirming its capacity for high-resistance pulling tasks.
Transmission and Drive System
The D7G SA utilizes a gear-type transmission providing 6 forward and 4 reverse speeds. Power is transferred through a wet disc clutch system, designed for durability under heavy loads. The machine operates on a crawler drive system featuring 22-inch tracks, which distribute its 39,500 to 40,700-pound operating weight to minimize ground pressure and maximize traction.
Hydraulics and Equipment
The hydraulic system is of the open-center type, operating at a pressure of 2250 psi (155.1 bar). The system features a pump flow capacity of 32 gpm (121.1 lpm) and is equipped with three valves for the operation of external implements. This configuration provides the necessary flow and control for heavy agricultural attachments.
Conclusion
The Caterpillar D7G SA is engineered as a robust, high-torque tractor intended for intensive agricultural environments. Its combination of a high-capacity diesel engine, reliable mechanical transmission, and substantial track-based traction makes it suitable for large-scale land preparation and heavy-duty towing applications.
Production Information of Caterpillar, D7G SA
- Agricultural Crawler tractor
- Original price was $166,210 in 1985
| Manufacturer | Caterpillar |
|---|
Engine Specifications of Caterpillar, D7G SA
- Caterpillar 3306
- Liquid-cooled inline
- Turbocharged aftercooled diesel
- 6-cylinder
| Oil capacity | 29 qts [27.4 L] |
|---|---|
| Displacement | 638 ci [10.5 L] |
| Rated RPM | 2000 |
| Bore/Stroke | 4.75x6.00 inches [121 x 152 mm] |
| Coolant capacity | 48 qts [45.4 L] |
| Starter volts | 24 |
| Starter | Electric |
| Power | 250 hp [186.4 kW] |
Transmission Information of Caterpillar, D7G SA
Transmission variants 1
| Type | Gear |
|---|---|
| Oil capacity | 64 qts [60.6 L] |
| Gears | 6 forward and 4 reverse |
| Clutch | Wet disc |
Mechanical Specs of Caterpillar, D7G SA
- ROPS. Cab available with air-conditioning.
| Drive | Crawler |
|---|
Power Information of Caterpillar, D7G SA
| Engine | 250 hp [186.4 kW] |
|---|---|
| Drawbar (claimed) | 200 hp [149.1 kW] |
Hydraulics Specifications of Caterpillar, D7G SA
| Type | Open center |
|---|---|
| Pump flow | 32 gpm [121.1 lpm] |
| Valves | 3 |
| Capacity | 24 gal [90.8 L] |
| Pressure | 2250 psi [155.1 bar] |
Electrical System of Caterpillar, D7G SA
| Charging system | Alternator |
|---|---|
| Battery volts | 12 |
Where it sits
With 250 HP, the Caterpillar D7G SA sits just below D8L SA (400 HP) in Caterpillar's range. Its power puts it in the 92th percentile of 1980s models in our database (2052 machines).
Frequently asked questions
How much horsepower does the Caterpillar D7G SA have?
The Caterpillar D7G SA delivers 250 HP.
What years was the Caterpillar D7G SA produced?
The Caterpillar D7G SA was produced in 1980-1986.
What engine does the Caterpillar D7G SA have?
The Caterpillar D7G SA is powered by a Turbocharged aftercooled diesel, 6-cylinder engine.
What transmission does the Caterpillar D7G SA use?
The Caterpillar D7G SA uses a Gear transmission.