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Years in Production / 1972–1978
International Harvester
A-766
Explore the specifications, hardware, and original references for the International Harvester A-766.

98hp
Source index power
2WD Only
Drive
1972–1978
Production years
International Harvester
Manufacturer
A-766 / 01
At a glance
Overview
1972 - 1978
66A Series
Row-Crop tractor
Production
Row-Crop tractor
Built in Geelong, Australia
- Manufacturer
- International Harvester
Mechanical
Two-wheel drive
Power steering
Hydraulic dry disc brakes
Open operator station. Cab optional.
- Final Drives
- spur gear
Hydraulics
- Type
- open center
- Pump Flow
- 12 gpm45.4 lpm
Hitch
- Rear Type
- II
Pto
- Rear Pto
- independent
- Rear Type
- 540/1000
A-766 / 02
Under the hood
Engine Detail
International Harvester D-310
diesel
6-cylinder
liquid-cooled inline
- Displacement
- 310 ci5.1 L
- Bore Stroke
- 3.875x4.375 inches98 x 111 mm
- Power
- 98 hp73.1 kW
- Air Cleaner
- dual stage dry
- Compression Ratio
- 16:1
- Rated Rpm
- 2300
- Torque
- 248 lb-ft336.3 Nm
- Torque Rpm
- 1600
- Starter
- electric
- Starter Volts
- 12
- Fuel Type
- diesel
- Cylinders
- 6
- Cooling
- liquid-cooled inline
Engine Options
International Harvester 5.1L 6-cyl diesel
- Fuel Tank
- 37 gal140.0 L
A-766 / 03
Gears & controls
Transmission (Option 1)
Four gears (1-4) in low and high ranges.
- Transmission Type
- sliding gear
- Gears
- 8 forward and 4 reverse
- Clutch
- dry disc
Transmission (Option 2)
Four gears (1-4) in two ranges (low/high) with the Torque Amplifier (TA) power shift. The TA allows a shift-on-the-move between direct drive and a lower speed.
- Transmission
- Torque Amplifier
- Transmission Type
- two-speed power shift
- Gears
- 16 forward and 8 reverse
- Clutch
- dry disc
Transmission Options
8-speed sliding gear
16-speed two-speed power shift
A-766 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 155.8 in395 cm
- Width
- 91 in231 cm
- Height
- 84.7 in215 cm
- Wheelbase
- 104.8 in266 cm
- Front tread
- 60 in152 cm
- Rear tread
- 56 in142 cm
Dimensions And Tires
- Wheelbase
- 104.8 inches266 cm
- Weight
- 10300 lbs4672 kg
- Front Tire
- 9.5L-15
- Rear Tire
- 18.4-34
Tires And Tracks
- Front Ag
- 9.5L-15
- Rear Ag
- 18.4-34