International Harvester 766

International Harvester 766The International Harvester 766 is a 2WD row-crop tractor from the 66 series. This tractor was manufactured by International Harvester in Rock Island, Illinois, USA from 1971 to 1976.

The International Harvester 766 is equipped with one of two engines: a 6.4 L (391.0 cu·in) six-cylinder gasoline engine or a 5.9 L (359.9 cu·in) six-cylinder gasoline engine and one of two transmissions: a sliding gear transmission with 8 forward and 4 reverse gears and dry disc clutch or a partial power shift transmission with 16 forward and 8 reverse gears and dry disc clutch.

The tractor could be equipped with the following engines:

  • International Harvester C291. It is a 6.4 L, 6,407 cm2, (391.0 cu·in) six-cylinder natural aspirated gasoline engine with 95.0 mm (3.74 in) of the cylinder bore and 112.0 mm (4.41 in) of the piston stroke.
  • International Harvester D360. It is a 5.9 L, 5,898 cm2, (359.9 cu·in) six-cylinder natural aspirated gasoline engine. The cylinder bore is 98.0 mm (3.86 in) and the piston stroke is 129.0 mm (5.08 in). The compression ratio rating is 17.0:1.

The International Harvester 766 is equipped with hydrostatic power steering, hydraulic dry disc brakes, Open operator station or Cab (optional) and 140.0 liters (37 US gal, 30.8 Imp. gal) fuel tank.

International Harvester 766 Specifications

General Specifications
ModelInternational Harvester 766
Length
Width
Height
Wheel base2,600 mm (102.4 in)
Weight (operating)4,670 kg (10,296 lbs)
Fuel tank capacity140.0 liters (37 US gal, 30.8 Imp. gal)
Battery
Cabin typeOpen operator station or Cab (optional)
Engine
Engine modelInternational Harvester C291
Engine typeFour-stroke, liquid-cooled, inline
Cylinders6
Fuel typeGasoline
Displacement6.4 L, 6,407 cm2, (391.0 cu·in)
Bore and stroke95.0 mm X 112.0 mm (3.74 in X 4.41 in)
Horsepower
StarterElectric
Engine
Engine modelInternational Harvester D360
Engine typeFour-stroke, air-cooled, inline
Cylinders6
Fuel typeGasoline
Displacement5.9 L, 5,898 cm2, (359.9 cu·in)
Bore and stroke98.0 mm X 129.0 mm (3.86 in X 5.08 in)
Compression ratio17.0:1
Horsepower
StarterElectric
Transmission and chassis
Chassis4×2 2WD
Steering typeHydrostatic power
BrakesHydraulic dry disc
Transmission model
Transmission typeSliding gear with dry disc clutch
Gears8 forward and 4 reverse
Transmission modelTorque Amplifier
Transmission typePartial power shift with dry disc clutch
Gears16 forward and 8 reverse
Tires
Front tires Ag: 9.5L-15
Rear tires Ag: 18.4-34
Three-Point Hitch
CategoryII
Control type
Lift capacity (at ends)
PTO (Power take-off shaft)
Rear PTO typeIndependent
Rear PTO speed540, 1000 rpm
Hydraulic system
Hydraulic typeOpen center
Pump flow12.0 gpm (45.4 lpm)
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We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. In addition, the characteristics may vary depending on the modification and market. We do not provide advice on technical issues related to the any operation or repair. We do not recommend using provided information for repairing or spare parts ordering, use only official service manuals and spare-parts catalogs.

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