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International Harvester 1456 vs International Harvester 6388
Verdict: International Harvester 1456 vs International Harvester 6388
The International Harvester 1456 and the International Harvester 6388 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 131 hp. International Harvester 1456 is the lighter machine (5,806 kg vs 7,239 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 6388 is the newer design (1981 vs 1969). 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
85
Fit score
Best match
Clear
International Harvester
85
Fit score
Best match
Clear
Rated power
131 hp
131 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
International HarvesterReference
International HarvesterReference
With 18.4-39 rear tires.Reference
With 16.9-38 tires.Reference
Total built
5,592 (Farmall/row-crop)Reference
272Reference
Original price
$12,400 (1971)Reference
—
Drive
4x4 MFWD 4WD optionalReference
—
Steering
hydrostatic powerReference
articulated hydrostatic powerReference
Variants
IH 1456
standard-treadReference
—
Farmall 1456
row-cropReference
—
Engine
Fuel tank
151.4 LReference
—
Drawbar (tested)
85.5 kWReference
83.3 kWReference
Displacement
6.7 LReference
7.1 LReference
Bore/Stroke
110 x 117 mmReference
109 x 127 mmReference
Air cleaner
dual dry elementsReference
—
Compression
17:1Reference
—
Rated RPM
2400Reference
2400Reference
Starter volts
12Reference
12Reference
Oil capacity
83.3 LReference
89.4 LReference
Coolant capacity
22.7 LReference
32.2 LReference
Power at rated engine speed
97.8 kWReference
97.4 kWReference
Max power
85.5 kWReference
83.3 kWReference
Engine
—
117.1 kWReference
Drawbar (claimed)
—
85.0 kWReference
Power
—
117.1 kWReference
Transmission
Transmission
Torque AmplifierReference
—
Gears
16 forward and 8 reverseReference
16 forward and 8 reverseReference
Type
partial power shiftReference
two-range power shiftReference
PTO & Hydraulics
PTO (claimed)
96.9 kWReference
96.9 kWReference
PTO (tested)
97.8 kWReference
97.4 kWReference
Pump flow
45.4 lpmReference
68.1 lpmReference
Rear Type
3/2Reference
III/IIReference
Rear PTO
independentReference
independentReference
Rear PTO Type
1000Reference
540/1000Reference
Power at rated PTO speed
94.9 kWReference
95.9 kWReference
Hydraulic system
—
89.3 LReference
Capacity
—
89.3 LReference
Valves
—
2 to 4Reference
Steering flow
—
45.4 lpmReference
Dimensions
Wheelbase
266 cmReference
279 cmReference
Weight
5806 kgReference
7239 kgReference
Front tire
11L-15Reference
16.9-38Reference
Rear tire
18.4-38Reference
16.9-38Reference
Ag front
11L-15Reference
16.9-38Reference
Ag rear
18.4-38Reference
16.9-38Reference
Length
416 cmReference
576 cmReference
Height (steering wheel)
218 cmReference
—
Operating weight
5806 kgReference
—
Ballasted weight
7869 kgReference
—
Bar rear axle
88 mmReference
82 mmReference
Width
—
258 cmReference
Shipping weight
—
7239 kgReference
Ground clearance
—
69 cmReference
1456 Serial Numbers
1969
10001 (Farmall)Reference
—
1970
10405 (Farmall)Reference
—
1971
14149 (Farmall)Reference
—
Location:
Clutch housing, right sideReference
transmission housing, right sideReference
Test results
Fuel use
32.2 l/hourReference
31.4 l/hourReference
Max pull
—
7604 kgReference
Speeds
Capacities
Fuel
—
526.1 LReference
6388 Serial Numbers
1981
—
8801Reference
1982
—
8962Reference
1983
—
9060Reference
1984
—
9241Reference
1985
—
9361Reference
International Harvester 6388 Height
Hood
—
200 cmReference
Cab
—
287 cmReference
Exhaust
—
315 cmReference
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.