| Manufacturer | International Harvester |
| Price | - |
| Model | A-866 |
| Equipment Type | Row-Crop Tractors |
| Factory | Geelong, Australia |
INTERNATIONAL HARVESTER A-866 POWER
| Engine | 121hp / 90.2kW |
| Drawbar (claimed) | 92hp / 68.6kW |
| PTO (claimed) | 96hp / 71.6kW |
ENGINE DETAIL
The International Harvester A-866 is powered by a robust D-358 diesel engine that provides a commendable 121 horsepower and a displacement of 5.9 liters, making it suitable for demanding agricultural applications. Its bore and stroke dimensions of 3.875 x 5.0625 inches allow for efficient torque delivery, enhancing its performance in heavy-duty tasks. However, potential challenges include the weight distribution and fuel efficiency in comparison to modern Tier 4 compliant engines, particularly in confined field operations.
| Description | International Harvester D-358 diesel 6-cylinder liquid-cooled |
| Displacement | 358ci / 5.9L |
| Bore/Stroke | 3.875x5.0625inches / 98x 129mm |
| Power | 121hp / 90.2kW |
INTERNATIONAL HARVESTER A-866 ENGINE
The International Harvester A-866 is powered by a robust 5.9L 6-cylinder diesel engine, known for its durability and fuel efficiency in agricultural applications. Advantages include high torque output suitable for heavy-duty tasks, but potential challenges may arise from maintenance complexity due to the engine's age and availability of parts. Ideal for farmers needing reliable performance in challenging terrains, this model excels in both plowing and transport scenarios.
| Description | International Harvester 5.9L 6-cyl diesel |
TRANSMISSION
The International Harvester A-866's two-speed power shift transmission, featuring a torque amplifier, allows for enhanced control and efficiency in varying field conditions, providing 16 forward gears and 4 reverse gears for optimal adaptability. This configuration can improve productivity during tasks requiring frequent speed adjustments, but may present challenges in maintenance due to its complex mechanics. Ideal for diverse agricultural applications, the A-866 excels in scenarios where versatility and ease of speed modulation are crucial.
| Transmission | Torque Amplifier |
| Type | two-speed power shift |
| Gears | 16 forward and 4 reverse |
MECHANICAL
The International Harvester A-866 features a 4x2 two-wheel drive chassis, providing excellent maneuverability on flat terrain but limiting traction in adverse conditions. Its 16-speed two-speed power shift transmission allows for smooth shifting across various speed ranges, enhancing operational efficiency and adaptability for diverse agricultural tasks. However, the open operator station may expose the operator to weather elements, making the optional cab a worthwhile consideration for comfort during extended use.
| Chassis | 4x2 2WD |
| Cab | Open operator station. Cab optional |
| Transmission | 16-speed two-speed power shift |
A-866 SERIAL NUMBERS
| 1973 | 501 |
| 1974 | 601 |
| 1975 | 761 |
| 1976 | 1045 |
| 1977 | 1567 |
| 1978 | 1998 |
| Final | 2142 |