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International Harvester 660 vs International Harvester 785
Verdict: International Harvester 660 vs International Harvester 785
The International Harvester 660 and the International Harvester 785 are both tractors — here is how they stack up on the figures that matter. International Harvester 785 leads on rated power with 80 hp against 79 hp. International Harvester 660 holds more fuel (124.9 L vs 112.0 L) for longer stints between fills. International Harvester 785 is the newer design (1981 vs 1959). In short: choose the International Harvester 785 for outright pulling power, or the International Harvester 660 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
62
Fit score
Best match
Clear
International Harvester
62
Fit score
Best match
Clear
Rated power
79 hp
80 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
International HarvesterReference
International HarvesterReference
The Torque Amplifier (TA) provides a clutchless shift-on-the-move between direct drive (DD) and the lower TA speed.Reference
Four gears (1-4) in two ranges (low/high) plus reverse range.Reference
Total built
6,945Reference
—
Original price
$6,000 (1963)Reference
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Steering
hydrostatic power optionalReference
—
Differential lock
—
mechanical rearReference
Engine
Fuel tank
141.9 LReference
112.0 LReference
Engine
70.8 kWReference
—
Plows
6Reference
—
Drawbar (tested)
52.4 kWReference
—
Displacement
4.6 LReference
4.0 LReference
Bore/Stroke
94 x 112 mmReference
100 x 129 mmReference
Power
70.8 kWReference
—
Air cleaner
oil bathReference
—
Compression
8.75:1Reference
—
Rated RPM
2400Reference
2300Reference
Torque
287.5 NmReference
356.6 NmReference
Torque RPM
1200Reference
1600Reference
Oil capacity
60.6 LReference
—
Coolant capacity
19.9 LReference
—
Firing order
1-5-3-6-2-4Reference
—
Power at rated engine speed
60.1 kWReference
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Max power
51.9 kWReference
—
Engine (gross)
—
59.7 kWReference
Engine (net)
—
57.7 kWReference
Power (net)
—
57.7 kWReference
Power (gross)
—
59.7 kWReference
Fuel system
—
direct injectionReference
Starter
—
electricReference
Starter volts
—
12Reference
Transmission
Transmission
Torque AmplifierReference
Torque AmplifierReference
Gears
10 forward and 2 reverseReference
16 forward and 8 reverseReference
Type
—
two-speed power shiftReference
PTO & Hydraulics
PTO (tested)
60.7 kWReference
—
Valves
1Reference
—
Total flow
64.3 lpmReference
—
Steering flow
9.5 lpmReference
—
Rear PTO
independentReference
independentReference
Rear PTO Type
540Reference
540/1000Reference
PTO (claimed)
—
50.9 kWReference
Pump flow
—
46.9 lpmReference
Rear Type
—
IIReference
Control
—
position and draft controlReference
Rear lift
—
2381 kgReference
Clutch
—
hydraulic wet discReference
Dimensions
Wheelbase
217 cmReference
224 cmReference
Weight
9635 to 9875 poundsReference
—
Front tire
7.50-18Reference
10.00-16Reference
Rear tire
18.4/15-34Reference
16.9-34Reference
Ag front
7.50-18Reference
—
Ag rear
18.4/15-34Reference
16.9-34Reference
Industrial rear
16.9/14-34Reference
—
Length
362 cmReference
374 cmReference
Width
198 cmReference
—
Height (steering wheel)
187 cmReference
—
Ground clearance
50 cmReference
—
Clearance (front axle)
44 cmReference
—
Operating
4479 kgReference
—
Ballasted
6919 kgReference
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2WD Ag front
—
10.00-16Reference
4WD Ag front
—
12.4-24Reference
Height
—
264 cmReference
International Harvester 660 attachments
660 Serial Number Location
660 Serial Numbers
1959
501Reference
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1960
3398Reference
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1961
4259Reference
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1962
5883Reference
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1963
6995Reference
—
Final
?Reference
—
Test results
Fuel use
33.3 l/hourReference
—
Max pull
5010 kgReference
—
Speeds
785 Serial Numbers
Location:
—
Serial number plate on right front of tractor frame, above the front axle.Reference
Electrical
Ground
—
negativeReference
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.