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International Harvester 1066 vs International Harvester 3488

Verdict: International Harvester 1066 vs International Harvester 3488

The International Harvester 1066 and the International Harvester 3488 are both tractors — here is how they stack up on the figures that matter. International Harvester 1066 leads on rated power with 116 hp against 113 hp. International Harvester 3488 is the lighter machine (11,600 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 3488 is the newer design (1981 vs 1971). In short: choose the International Harvester 1066 for outright pulling power, or the International Harvester 3488 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 3488 Tractor
International Harvester
85
Fit score
Best match
Clear
Rated power
116 hp
113 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
Gear 2.3 MPH (LO) used for pull test.Reference
Total built
54,947Reference
465Reference
Variants
1066 Hi-Clear
high-cropReference
Engine
Fuel tank
159.0 LReference
Drawbar (claimed)
80.5 kWReference
61.9 kWReference
Drawbar (tested)
79.0 kWReference
60.0 kWReference
Displacement
6.8 LReference
7.6 LReference
Bore/Stroke
109 x 121 mmReference
109 x 136 mmReference
Air cleaner
dual stage dryReference
dual paper elementsReference
Rated RPM
2600 (after 1973)Reference
2400Reference
Starter volts
12Reference
12Reference
Oil capacity
17.0 LReference
107.9 LReference
Coolant capacity
23.7 LReference
28.4 LReference
Power at rated engine speed
93.7 kWReference
83.9 kWReference
Max power
79.0 kWReference
60.0 kWReference
Compression
15.7:1Reference
Idle RPM
900-2400Reference
Transmission
Gears
infinite forward and reverse (two-range)Reference
infinite forward and reverse (2-range)Reference
Clutch
dry discReference
Transmission
Torque AmplifierReference
PTO & Hydraulics
PTO (claimed)
94.0 kWReference
83.5 kWReference
PTO (tested)
93.7 kWReference
83.9 kWReference
Type
hydrostaticReference
hydrostaticReference
Pump flow
45.4 lpmReference
68.1 lpmReference
Total flow
79.5 lpmReference
102.2 lpmReference
Steering flow
34.1 lpmReference
45.4 lpmReference
Rear Type
III/IIReference
IIReference
Rear lift (at 24"/610mm)
2540 kgReference
Rear PTO
independentReference
independentReference
Rear PTO Type
540/1000Reference
540/1000Reference
Power at rated PTO speed
88.9 kWReference
79.9 kWReference
Hydraulic system
107.9 LReference
Capacity
107.9 LReference
Valves
2 or 3Reference
Control
draft sensingReference
Engine RPM
1000@2100Reference
Dimensions
Wheelbase
266 cmReference
266 cmReference
Weight
12148 to 13345 poundsReference
11600 to 12880 poundsReference
Front tire
11L-15Reference
10.00-16Reference
Rear tire
18.4-38Reference
18.4-34Reference
Ag front
11L-15Reference
10.00-16Reference
Ag rear
18.4-38Reference
18.4-34Reference
Length
419 cmReference
467 cmReference
Width
248 cmReference
259 cmReference
Height (exhaust)
281 cmReference
Clearance (drawbar)
40 cmReference
Bar rear axle
82 mmReference
Operating
6053 kgReference
Ballasted
6921 kgReference
Height (cab)
284 cmReference
Shipping weight
5261 kgReference
Operating weight
5842 kgReference
Ground clearance
33 cmReference
Rear axle
82 by 2997 mmReference
Front tread
152 to 213 cmReference
Rear tread
167 to 290 cmReference
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
30.7 l/hourReference
Max pull
5896 kgReference
5512 kgReference
Speeds
Capacities
Fuel
189.2 LReference
3488 Serial Numbers
Location:
Serial number plate on the right side of the tractor frame, ahead of the rear axle.Reference
Electrical
Ground
negativeReference
Battery volts
12Reference

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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