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International Harvester 278 vs International Harvester Super AI
Verdict: International Harvester 278 vs International Harvester Super AI
The International Harvester 278 and the International Harvester Super AI are both industrial tractors — here is how they stack up on the figures that matter. International Harvester 278 is the newer design (1977 vs 1947). 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
79
Fit score
Best match
Clear
International Harvester
62
Fit score
Clear
Rated power
null hp
16 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
International HarvesterReference
International HarvesterReference
The Torque Amplifier (TA) provides a power shift (clutchless, on the move) from direct drive (DD) to a lower TA speed.Reference
keroseneReference
Factories
—
Chicago, Illinois, USAReference
Steering
—
manualReference
Variants
784
farm tractorReference
—
Super A
—
Farmall row-cropReference
Engine
Displacement
4.0 LReference
1.9 LReference
Bore/Stroke
100 x 129 mmReference
76 x 102 mmReference
Air cleaner
dryReference
—
Compression
15.5:1Reference
6:1Reference
Rated RPM
2400Reference
1400Reference
Oil capacity
34.1 LReference
4.7 LReference
Coolant capacity
13.6 LReference
12.3 LReference
Drawbar (claimed)
—
9.7 kWReference
Idle RPM
—
500-1540Reference
Firing order
—
1-3-4-2Reference
Starter volts
—
6Reference
Sparkplug gap
—
0.635 mmReference
Point gap
—
0.508 mmReference
Intake valve clearance
—
0.356 mmReference
Exhaust valve clearance
—
0.356 mmReference
Oil change
—
120 hReference
Transmission
Type
two-speed power shiftReference
sliding gearReference
Gears
16 forward and 8 reverseReference
4 forward and 1 reverseReference
Clutch
dry discReference
9-inch dry discReference
Transmission
Torque AmplifierReference
—
Speeds
PTO & Hydraulics
PTO (claimed)
—
11.9 kWReference
Hydraulic system
—
7.9 LReference
Capacity
—
7.9 LReference
Valves
—
1Reference
Rear PTO
—
transmissionReference
Rear PTO Type
—
540Reference
Capacities
Fuel
—
41.6 LReference
Aux. fuel
—
2.8 LReference
Rear hubs
—
2.8 LReference
Diameter
—
21 cmReference
Width
—
141 cmReference
RPM
—
1157Reference
Speed
—
784.56 meters/minReference
Dimensions
Wheelbase
—
180 cmReference
Weight
—
1088 kgReference
Ag front
—
5.00-15Reference
Ag rear
—
9-24Reference
Length
—
271 cmReference
Height (steering wheel)
—
163 cmReference
Height (exhaust)
—
207 cmReference
Ballasted weight
—
1564 kgReference
Clearance (rear axle)
—
54 cmReference
Min Clearance (drawbar)
—
29 cmReference
Max Clearance (drawbar)
—
42 cmReference
Rear tread
—
101 to 172 cmReference
Super AI Serial Numbers
1947
—
250001Reference
1948
—
250082Reference
1949
—
268196Reference
1950
—
281269Reference
1951
—
300126Reference
1952
—
324470Reference
1953
—
336880Reference
1954
—
353348Reference
Location:
—
On the right side of the seat supportReference
Electrical
Ground
—
postitiveReference
Battery volts
—
6Reference
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.