Introduction
International Harvester 766 Row-Crop Tractor
The International Harvester 766 is a row-crop tractor produced between 1971 and 1976 at the Rock Island, Illinois facility. As part of the 966 series, this model was designed to provide reliable power for mid-range agricultural operations.
Engine and Performance
The tractor is powered by the International Harvester D360, a 5.9-liter, 6-cylinder liquid-cooled diesel engine. It generates 88 horsepower at a rated speed of 2400 RPM, with a compression ratio of 17:1. The engine bore and stroke dimensions are 3.875 by 5.0625 inches.
Transmission and Drivetrain
Two transmission configurations were available: a standard 8-speed gear transmission or a 16-speed transmission featuring a two-speed power shift with a Torque Amplifier. The Torque Amplifier allows the operator to shift between direct drive and a lower speed range while on the move, utilizing a dry disc clutch system.
Hydraulics and PTO
The hydraulic system utilizes an open-center design with a pump flow capacity of 12 gallons per minute (45.4 liters per minute). The rear power take-off (PTO) is independent and offers dual-speed capabilities at 540 and 1000 RPM, providing versatility for various implements.
Dimensions and Handling
This two-wheel-drive machine features a 105-inch wheelbase and weighs approximately 10,300 lbs in its standard operating configuration, which can be increased to 11,880 lbs when ballasted. It is equipped with power steering and hydraulic dry disc brakes. The rear tread width is adjustable between 56 and 100 inches, while the front tread ranges from 60 to 84 inches.
Conclusion
With a total production of 10,799 units, the International Harvester 766 remains a functional choice for farmers seeking a durable, mechanical row-crop tractor. Its combination of a high-torque engine and flexible transmission options makes it well-suited for general field work and light-to-medium tractive tasks.
Production Information of Farmall, 766
- Original price was $13,400 in 1976
- Row-Crop tractor
- Built in Rock Island, Illinois, USA
| Manufacturer | Farmall (a part of International Harvester) |
|---|---|
| Total built | 10,799 |
Dimension and Tires Information of Farmall, 766
| Clearance (drawbar) | 14 inches [35 cm] |
|---|---|
| Wheelbase | 105 inches [266 cm] |
| Operating weight | 10,300 lbs [4672 kg] |
| Height (exhaust) | 105 inches [266 cm] |
| Length | 165 inches [419 cm] |
| Front tread | 60 to 84 inches [152 to 213 cm] |
| Ballasted weight | 11,880 lbs [5388 kg] |
| Width | 98 inches [248 cm] |
| Rear tread | 56 to 100 inches [142 to 254 cm] |
| Ag front | 9.5L-15 |
|---|---|
| Ag rear | 18.4-34 |
Engine Specifications of Farmall, 766
- International Harvester D360
- Liquid-cooled
- Diesel
- 6-cylinder
| Compression | 17:1 |
|---|---|
| Displacement | 360 ci [5.9 L] |
| Rated RPM | 2400 |
| Bore/Stroke | 3.875x5.0625 inches [98 x 129 mm] |
| Starter volts | 12 |
Transmission Information of Farmall, 766
Transmission variants 1
- Four gears (1-4) in low and high ranges.
| Type | Gear |
|---|---|
| Gears | 8 forward and 4 reverse |
| Clutch | Dry disc |
Transmission variants 2
- Four gears (1-4) in two ranges (low/high) with the Torque Amplifer (TA) power shift. The TA allows a shift-on-the-move between direct drive and a lower speed.
| Transmission | Torque Amplifier |
|---|---|
| Clutch | Dry disc |
| Type | Two-speed power shift |
| Gears | 16 forward and 8 reverse |
- 8-speed gear
- 16-speed two-speed power shift
Mechanical Specs of Farmall, 766
- Two-wheel drive
- Open operator station. Cab optional.
- Power steering
- Hydraulic dry disc brakes
Power Information of Farmall, 766
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 540/1000 |
Hydraulics Specifications of Farmall, 766
| Type | Open center |
|---|---|
| Pump flow | 12 gpm [45.4 lpm] |
Three-Point Hitch of Farmall, 766
| Rear Type | 2 |
|---|
Where it sits
With 88 hp[P] HP, the Farmall 766 sits just below 966 (91 HP) in Farmall's range. Its power puts it in the 61th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the Farmall 766 have?
The Farmall 766 delivers 88 hp[P] HP.
What years was the Farmall 766 produced?
The Farmall 766 was produced in 1971-1976.
What engine does the Farmall 766 have?
The Farmall 766 is powered by a Diesel, 6-cylinder engine.
What transmission does the Farmall 766 use?
The Farmall 766 uses a Gear transmission.
How much does the Farmall 766 weigh?
The Farmall 766 weighs 10,300 lbs [4672 kg].
Is the Farmall 766 4WD?
The Farmall 766 is available in 2WD.