International Harvester A-866
Power
121 hp
Production
1973-1978
Engine
Diesel, 6-cylinder
Transmission
Torque Amplifier
Weight
10803 lbs [4900 kg]
Drive
2WD
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Introduction
International Harvester A-866 Row-Crop Tractor
The International Harvester A-866 is a row-crop tractor produced between 1973 and 1978 in Geelong, Australia. Designed for demanding agricultural environments, this model is recognized for its robust construction and performance in standard field operations.
Engine and Performance
The tractor is powered by the International Harvester D-358 engine, a 5.9-liter, 6-cylinder liquid-cooled diesel unit. It utilizes direct fuel injection and produces 121 hp at a rated speed of 2500 RPM. The engine delivers 265 lb-ft of torque at 1600 RPM, providing consistent power for heavy-duty traction tasks.
Transmission and Drivetrain
The A-866 features a transmission system equipped with a Torque Amplifier, which serves as a two-speed power shift. This configuration provides a total of 16 forward and 4 reverse gears, allowing the operator to adjust speed and torque according to field conditions. The tractor utilizes a two-wheel drive layout with final drives featuring bull gears.
Hydraulics and Power Take-Off
Equipped with an open-center hydraulic system, the tractor supports various implements. The independent rear Power Take-Off (PTO) is designed to operate at 540 or 1000 RPM, selectable at 2300 engine RPM, ensuring compatibility with a wide range of external agricultural machinery.
Dimensions and Handling
With a wheelbase of 104.7 inches and a base weight of approximately 10,803 lbs, the A-866 offers a stable platform for field work. Maneuverability is facilitated by standard power steering, while braking is managed by hydraulic disc brakes. The operator station is open-air, with an optional cab available for improved working conditions.
Conclusion
The International Harvester A-866 is a durable, high-torque tractor well-suited for traditional row-crop farming. Its combination of a reliable diesel engine and a versatile multi-speed transmission makes it a functional choice for farmers requiring sustained performance in large-scale tillage and cultivation tasks.
Production Information of International Harvester, A-866
- Row-Crop tractor
- Built in Geelong, Australia
| Manufacturer | International Harvester |
|---|
Dimension and Tires Information of International Harvester, A-866
| Rear tread | 68.1 to 105.9 inches [172 to 268 cm] |
|---|---|
| Wheelbase | 104.7 inches [265 cm] |
| Weight | 10803 lbs [4900 kg] |
| Height (steering wheel) | 87 inches [220 cm] |
| Length | 159.8 inches [405 cm] |
| Front tread | 59.8 to 83.9 inches [151 to 213 cm] |
| Width | 90.9 inches [230 cm] |
| Ag front | 11.00-16 |
|---|---|
| Ag front(optional) | 18.4-38 |
| Ag front(optional) | 18.4-34 |
| Ag rear | 23.1-34 |
| Ag rear | 23.1-30 |
Engine Specifications of International Harvester, A-866
- International Harvester D-358
- Liquid-cooled inline
- 6-cylinder
- Diesel
| Fuel system | Direct injection |
|---|---|
| Torque | 265 lb-ft [359.3 Nm] |
| Displacement | 358 ci [5.9 L] |
| Bore/Stroke | 3.875x5.0625 inches [98 x 129 mm] |
| Power | 121 hp [90.2 kW] |
| Rated RPM | 2500 |
| Compression | 16:1 |
| Starter volts | 12 |
| Starter | Electric |
| Torque RPM | 1600 |
Transmission Information of International Harvester, A-866
Transmission variants 1
| Transmission | Torque Amplifier |
|---|---|
| Type | Two-speed power shift |
| Gears | 16 forward and 4 reverse |
Mechanical Specs of International Harvester, A-866
- Two-wheel drive
- Open operator station. Cab optional.
- Hydraulic disc brakes
- Power steering
| Final drives | Bull gear |
|---|
Power Information of International Harvester, A-866
| Rear PTO | Independent |
|---|---|
| Rear PTO(optional) | 1000@2300 |
| Rear PTO Type | 540/1000 (1.375) |
| Engine RPM | 540@2300 |
Hydraulics Specifications of International Harvester, A-866
| Type | Open center |
|---|
Three-Point Hitch of International Harvester, A-866
| Rear Type | II |
|---|
Where it sits
With 121 HP, the International Harvester A-866 sits between A-766 (98 HP) and A-976 (134 HP) in International Harvester's range. Its power puts it in the 76th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the International Harvester A-866 have?
The International Harvester A-866 delivers 121 HP.
What years was the International Harvester A-866 produced?
The International Harvester A-866 was produced in 1973-1978.
What engine does the International Harvester A-866 have?
The International Harvester A-866 is powered by a Diesel, 6-cylinder engine.
What transmission does the International Harvester A-866 use?
The International Harvester A-866 uses a Torque Amplifier transmission.
How much does the International Harvester A-866 weigh?
The International Harvester A-866 weighs 10803 lbs [4900 kg].
Is the International Harvester A-866 4WD?
The International Harvester A-866 is available in 2WD.