International Harvester A-786
Power
100 hp
Production
1978-1980
Engine
Diesel, 6-cylinder
Transmission
Torque Amplifier
Weight
10350 lbs [4694 kg]
Drive
2WD
From the same series:
Introduction
International Harvester A-786 Row-Crop Tractor
The International Harvester A-786 is a row-crop tractor produced between 1978 and 1980 in Geelong, Australia. Designed for agricultural operations, this model is part of the International Harvester series and reflects the engineering standards of the late 1970s.
Engine and Performance
The tractor is powered by an International Harvester D-310 liquid-cooled inline 6-cylinder diesel engine. With a displacement of 5.1 liters, it delivers a rated power of 100 horsepower (74.6 kW) at 2400 RPM. The engine produces a maximum torque of 221 lb-ft (299.7 Nm) at 1600 RPM, providing steady power for field operations.
Transmission and Drivetrain
The drivetrain features a two-speed power shift transmission providing 16 forward and 8 reverse gears, integrated with a Torque Amplifier for improved speed management under load. Power is transferred via a 305mm cerametallic disc clutch. The tractor utilizes a two-wheel drive configuration with an electro-hydraulic rear differential lock to enhance traction.
Mechanical Systems and Comfort
Equipped with power steering and hydraulic disc brakes, the A-786 is designed for operator control. The unit comes standard with an air-conditioned cab, which was a significant feature for operator comfort during extended work periods. It includes a 12-volt electrical system with an electric starter.
Dimensions and Weight
The A-786 has a wheelbase of 105 inches (266 cm) and an overall length of 156 inches (396 cm). The height to the top of the cab is 112.4 inches (285 cm), with a ground clearance of 14 inches (35 cm). The shipping weight of the machine is 10,350 lbs (4694 kg).
Conclusion
With a total of 997 units built, the International Harvester A-786 is a specialized row-crop tractor suited for medium-duty agricultural tasks. Its combination of a 100-horsepower engine and a multi-speed transmission makes it a practical choice for farmers requiring consistent performance and cabin comfort.
Production Information of International Harvester, A-786
- Row-Crop tractor
- Built in Geelong, Australia
| Manufacturer | International Harvester |
|---|---|
| Total built | 997 |
Dimension and Tires Information of International Harvester, A-786
| Wheelbase | 105 inches [266 cm] |
|---|---|
| Shipping weight | 10350 lbs [4694 kg] |
| Height (cab) | 112.4 inches [285 cm] |
| Length | 156 inches [396 cm] |
| Ground clearance | 14 inches [35 cm] |
| Width | 102 inches [259 cm] |
Engine Specifications of International Harvester, A-786
- International Harvester D-310
- Liquid-cooled inline
- Diesel
- 6-cylinder
| Starter | Electric |
|---|---|
| Displacement | 310 ci [5.1 L] |
| Rated RPM | 2400 |
| Bore/Stroke | 3.875x4.375 inches [98 x 111 mm] |
| Starter volts | 12 |
| Torque RPM | 1600 |
| Torque | 221 lb-ft [299.7 Nm] |
| Power | 100 hp [74.6 kW] |
Transmission Information of International Harvester, A-786
Transmission variants 1
| Transmission | Torque Amplifier |
|---|---|
| Clutch | 305mm cerametallic disc |
| Type | Two-speed power shift |
| Gears | 16 forward and 8 reverse |
Mechanical Specs of International Harvester, A-786
- Two-wheel drive
- Hydraulic disc brakes
- Power steering
- Cab standard with air-conditioning.
| Final drives | Bull gear |
|---|---|
| Differential lock | Electro-hydraulic rear |
Power Information of International Harvester, A-786
| Engine | 100 hp [74.6 kW] |
|---|---|
| Drawbar (claimed) | 72 hp [53.7 kW] |
| PTO (claimed) | 81 hp [60.4 kW] |
Electrical System of International Harvester, A-786
| Ground | Negative |
|---|---|
| Batteries | 2 |
| Battery volts | 12 |
Where it sits
With 100 HP, the International Harvester A-786 sits between A-766 (98 HP) and A-886 (121 HP) in International Harvester's range. Its power puts it in the 68th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the International Harvester A-786 have?
The International Harvester A-786 delivers 100 HP.
What years was the International Harvester A-786 produced?
The International Harvester A-786 was produced in 1978-1980.
What engine does the International Harvester A-786 have?
The International Harvester A-786 is powered by a Diesel, 6-cylinder engine.
What transmission does the International Harvester A-786 use?
The International Harvester A-786 uses a Torque Amplifier transmission.
How much does the International Harvester A-786 weigh?
The International Harvester A-786 weighs 10350 lbs [4694 kg].
Is the International Harvester A-786 4WD?
The International Harvester A-786 is available in 2WD.