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International Harvester 766 vs International Harvester A-766
Verdict: International Harvester 766 vs International Harvester A-766
The International Harvester 766 and the International Harvester A-766 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 80 hp. International Harvester A-766 is the newer design (1972 vs 1971). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
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Fit & specs
International Harvester
62
Fit score
Best match
Clear
International Harvester
62
Fit score
Best match
Clear
Rated power
80 hp
80 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
International HarvesterReference
International HarvesterReference
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.Reference
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.Reference
Total built
10,799Reference
—
Final drives
—
spur gearReference
Engine
Fuel tank
140.0 LReference
140.0 LReference
Drawbar (tested)
54.7 kWReference
—
Displacement
5.9 LReference
5.1 LReference
Bore/Stroke
98 x 129 mmReference
98 x 111 mmReference
Air cleaner
dual stage dryReference
dual stage dryReference
Rated RPM
2400Reference
2300Reference
Starter volts
12Reference
12Reference
Compression
17:1Reference
16:1Reference
Power at rated engine speed
63.7 kWReference
—
Max power
54.7 kWReference
—
Engine
—
73.1 kWReference
Power
—
73.1 kWReference
Torque
—
336.3 NmReference
Torque RPM
—
1600Reference
Starter
—
electricReference
Transmission
Gears
16 forward and 8 reverseReference
16 forward and 8 reverseReference
Clutch
dry discReference
dry discReference
Transmission
Torque AmplifierReference
Torque AmplifierReference
PTO & Hydraulics
PTO (tested)
63.7 kWReference
—
Type
two-speed power shiftReference
two-speed power shiftReference
Pump flow
45.4 lpmReference
45.4 lpmReference
Rear Type
2Reference
IIReference
Rear PTO
independentReference
independentReference
Rear PTO Type
540/1000Reference
540/1000Reference
Power at rated PTO speed
63.9 kWReference
—
PTO (claimed)
—
59.7 kWReference
Dimensions
Wheelbase
266 cmReference
266 cmReference
Weight
4672 kgReference
4672 kgReference
Front tire
9.5L-15Reference
9.5L-15Reference
Rear tire
18.4-34Reference
18.4-34Reference
Ag front
9.5L-15Reference
9.5L-15Reference
Ag rear
18.4-34Reference
18.4-34Reference
Length
419 cmReference
395 cmReference
Width
248 cmReference
231 cmReference
Height (exhaust)
266 cmReference
—
Operating weight
4672 kgReference
4672 kgReference
Ballasted weight
5388 kgReference
5388 kgReference
Clearance (drawbar)
35 cmReference
—
Bar rear axle
82 mmReference
—
Front tread
152 to 213 cmReference
152 to 213 cmReference
Rear tread
142 to 254 cmReference
142 to 254 cmReference
Height (steering wheel)
—
215 cmReference
766 Serial Number Location
766 Serial Numbers
1971
7101Reference
—
1972
7416Reference
501Reference
1973
9611Reference
1140Reference
1974
12378Reference
1811Reference
1975
14630Reference
2553Reference
1976
16840Reference
3270Reference
Test results
Fuel use
23.1 l/hourReference
—
Max pull
4189 kgReference
—
A-766 Serial Numbers
1977
—
3999Reference
1978
—
4604Reference
Location:
—
Left side of clutch housingReference
Final
—
4771Reference
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.