International Harvester 7788
Power
330 hp
Production
1982-1984
Engine
Turbocharged diesel, 8-cylinder
Weight
21,550 lbs [9775 kg]
Drive
4WD
From the same series:
Introduction
International Harvester 7788 (Steiger-built 4WD tractor)
The International Harvester 7788 is a high-horsepower four-wheel drive tractor produced between 1982 and 1984. Manufactured by Steiger in Fargo, North Dakota, this machine was designed to provide heavy-duty traction and power for large-scale agricultural operations.
Engine and Performance
The tractor is powered by an International Harvester DV-800, a 13.1-liter liquid-cooled V8 turbocharged diesel engine. It delivers 330 horsepower at a rated speed of 2400 RPM and produces 725 lb-ft of torque at 1800 RPM. The engine cooling system has a capacity of 65.3 liters, while the oil system holds 28.4 liters.
Transmission and Drivetrain
The 7788 features a mechanical drivetrain configured for four-wheel drive. The transmission system provides 20 forward gears and 4 reverse gears, allowing for a wide range of speed adjustments to suit various field conditions and implements.
Hydraulics and Hitch
The machine utilizes an open-center hydraulic system with a pump flow rate of 19 gallons per minute (71.9 liters per minute). It is equipped with a Category III rear hitch, which was available as an optional feature to accommodate various heavy-duty implements.
Dimensions and Operator Environment
Weighing 21,550 lbs, the tractor is built on a 118-inch wheelbase with an overall length of 246 inches and a width of 297 cm. It rides on 24.5-32 agricultural tires on both the front and rear axles. The operator station consists of a standard cab factory-equipped with air conditioning.
Conclusion
With only two units manufactured, the International Harvester 7788 represents a specialized iteration of the Steiger-built four-wheel drive series. It is a machine suited for heavy tillage and high-draft agricultural applications requiring significant power and structural stability.
Production Information of International Harvester, 7788
- Built in Fargo, North Dakota, USA
- Original price was $93,300 in 1984
- Four-wheel Drive (4WD) tractor
| Distributor | International Harvester |
|---|---|
| Total built | 2 |
| Manufacturer | Steiger |
Dimension and Tires Information of International Harvester, 7788
| Wheelbase | 118 inches [299 cm] |
|---|---|
| Ground clearance | 15.6 inches [39 cm] |
| Weight | 21,550 lbs [9775 kg] |
| Length | 246 inches [624 cm] |
| Width | 117 inches [297 cm] |
| Ag front | 24.5-32 |
|---|---|
| Ag rear | 24.5-32 |
Engine Specifications of International Harvester, 7788
- International Harvester DV-800
- Liquid-cooled V8
- Turbocharged diesel
- 8-cylinder
| Oil capacity | 30 qts [28.4 L] |
|---|---|
| Displacement | 798 ci [13.1 L] |
| Rated RPM | 2400 |
| Bore/Stroke | 5.31x4.50 inches [135 x 114 mm] |
| Coolant capacity | 69 qts [65.3 L] |
| Torque RPM | 1800 |
| Torque | 725 lb-ft [983.1 Nm] |
| Power | 330 hp [246.1 kW] |
Transmission Information of International Harvester, 7788
Transmission variants 1
| Gears | 20 forward and 4 reverse |
|---|
Mechanical Specs of International Harvester, 7788
- Four-wheel drive
- Cab standard with air-conditioning.
Power Information of International Harvester, 7788
| Engine | 330 hp [246.1 kW] |
|---|---|
| PTO (claimed) | 265 hp [197.6 kW] |
Hydraulics Specifications of International Harvester, 7788
| Type | Open center |
|---|---|
| Pump flow | 19 gpm [71.9 lpm] |
Three-Point Hitch of International Harvester, 7788
| Rear Type(optional) | III |
|---|
Where it sits
With 330 HP, the International Harvester 7788 sits between 7588 (300 HP) and 4786 (350 HP) in International Harvester's range. Its power puts it in the 96th percentile of 1980s models in our database (2052 machines).
Frequently asked questions
How much horsepower does the International Harvester 7788 have?
The International Harvester 7788 delivers 330 HP.
What years was the International Harvester 7788 produced?
The International Harvester 7788 was produced in 1982-1984.
What engine does the International Harvester 7788 have?
The International Harvester 7788 is powered by a Turbocharged diesel, 8-cylinder engine.
How much does the International Harvester 7788 weigh?
The International Harvester 7788 weighs 21,550 lbs [9775 kg].
Is the International Harvester 7788 4WD?
The International Harvester 7788 is available in 4WD.