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International Harvester 1066 vs International Harvester 1246

Verdict: International Harvester 1066 vs International Harvester 1246

The International Harvester 1066 and the International Harvester 1246 are both tractors — here is how they stack up on the figures that matter. International Harvester 1246 leads on rated power with 122 hp against 116 hp. International Harvester 1246 is the lighter machine (9,481 kg vs 12,148 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 1066 holds more fuel (159.0 L vs 110.1 L) for longer stints between fills. International Harvester 1246 is the newer design (1972 vs 1971). In short: choose the International Harvester 1246 for outright pulling power, or the International Harvester 1066 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Fit & specs
International Harvester 1066 Tractor
International Harvester
85
Fit score
Best match
Clear
International Harvester 1246 Tractor
International Harvester
85
Fit score
Best match
Clear
Rated power
116 hp
122 hp
Confidence
40%
40%
Guide price
Overview
Manufacturer
International HarvesterReference
International HarvesterReference
Four gears (1-4) in two ranges (Low/High) with the two-speed Torque Amplifier power shift (TA/direct).Reference
liquid-cooledReference
Total built
54,947Reference
Variants
1066 Hi-Clear
high-cropReference
Engine
Fuel tank
159.0 LReference
110.1 LReference
Drawbar (claimed)
80.5 kWReference
Drawbar (tested)
79.0 kWReference
Displacement
6.8 LReference
5.9 LReference
Bore/Stroke
109 x 121 mmReference
98 x 129 mmReference
Air cleaner
dual stage dryReference
Rated RPM
2600 (after 1973)Reference
2200Reference
Starter volts
12Reference
Oil capacity
17.0 LReference
Coolant capacity
23.7 LReference
Power at rated engine speed
93.7 kWReference
Max power
79.0 kWReference
Engine
91.0 kWReference
Power
91.0 kWReference
Transmission
Gears
infinite forward and reverse (two-range)Reference
16 forward and 7 reverseReference
Clutch
dry discReference
Transmission
Torque AmplifierReference
PTO & Hydraulics
PTO (claimed)
94.0 kWReference
PTO (tested)
93.7 kWReference
Type
hydrostaticReference
Pump flow
45.4 lpmReference
40.1 lpmReference
Total flow
79.5 lpmReference
Steering flow
34.1 lpmReference
Rear Type
III/IIReference
Rear lift (at 24"/610mm)
2540 kgReference
Rear PTO
independentReference
Rear PTO Type
540/1000Reference
540, 1000Reference
Power at rated PTO speed
88.9 kWReference
Rear lift
3700 kgReference
Dimensions
Wheelbase
266 cmReference
256 cmReference
Weight
12148 to 13345 poundsReference
9481 to 10694 poundsReference
Front tire
11L-15Reference
11.00-16Reference
Rear tire
18.4-38Reference
18.4-38Reference
Ag front
11L-15Reference
11.2-28 (MFWD)Reference
Ag rear
18.4-38Reference
18.4-38Reference
Length
419 cmReference
419 cmReference
Width
248 cmReference
Height (exhaust)
281 cmReference
Clearance (drawbar)
40 cmReference
Bar rear axle
82 mmReference
Operating
6053 kgReference
Ballasted
6921 kgReference
Height
272 cmReference
2WD Weight
4300 kgReference
4WD Weight
4850 kgReference
1066 Serial Number Location
1066 Serial Numbers
1971
7101Reference
1972
12677Reference
1973
24205Reference
1974
34949Reference
1975
46855Reference
1976
56672Reference
Test results
Fuel use
31.4 l/hourReference
Max pull
5896 kgReference
Speeds

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.

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