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International Harvester 644 vs International Harvester A-564
Verdict: International Harvester 644 vs International Harvester A-564
The International Harvester 644 and the International Harvester A-564 are both tractors — here is how they stack up on the figures that matter. International Harvester A-564 leads on rated power with 61 hp against 60 hp. International Harvester 644 is the newer design (1974 vs 1966). In short: choose the International Harvester A-564 for outright pulling power, or the International Harvester 644 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
60 hp
61 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
International HarvesterReference
International HarvesterReference
liquid-cooledReference
liquid-cooledReference
Engine
Fuel tank
74.2 LReference
—
Engine
44.7 kWReference
45.5 kWReference
Displacement
3.4 LReference
4.3 LReference
Bore/Stroke
98 x 111 mmReference
102 x 133 mmReference
Power
44.7 kWReference
45.5 kWReference
Rated RPM
2150Reference
1800Reference
Starter volts
12Reference
—
Transmission
Gears
8 forward and 4 reverseReference
5 forward and 1 reverseReference
Type
—
gearReference
PTO & Hydraulics
Pump flow
29.9 lpmReference
—
Rear Type
IIReference
—
Rear lift
2900 kgReference
—
Rear PTO Type
540/1000Reference
540 (1.375)Reference
Engine RPM
1000@2000Reference
—
Dimensions
Wheelbase
223 cmReference
—
Weight
6350 to 7078 poundsReference
—
Front tire
7.50-16Reference
7.50-18Reference
Rear tire
16.9-30Reference
18.4-30Reference
Ag front
9.5-24 (MFWD)Reference
7.50-18Reference
Ag rear
16.9-30Reference
18.4-30Reference
Length
377 cmReference
—
Height
248 cmReference
—
2WD Weight
2880 kgReference
—
4WD Weight
3210 kgReference
—
Electrical
Ground
negativeReference
—
Battery volts
12Reference
—
Variants
Farmall A564
—
row-cropReference
McCormick A564
—
standardReference
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.