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Manufacturer-sourced values side by side. No performance equivalence or ranking is applied across different machine classes.

FeatureZetor 6320TractorInternational Harvester 656Tractor
Tractor TypeUtility TractorUtility Tractor
Horsepower49.2 kW47.0 kW
Weight3040.0 kg3010.0 kg
Lift Capacity2655.0 kg—
Transmission TypeMechanical shuttleHydrostatic
Length365.0 cm—
Pump Flow41.6 LPM45.4 LPM
Years Made1993-19971965-1973
Engine ModelZetor Z7701International Harvester D282
Engine Type4-stroke, liquid-cooled, inline4-stroke, liquid-cooled, inline
Fuel TypeDieselDiesel
Cylinders46
Displacement3916 cc4621 cc
Bore10.21 cm9.40 cm
Stroke11.99 cm11.20 cm
Rear PTO TypeIndependentIndependent
Rear PTO Speed540 /1000 RPM540 /1.000 RPM
Rated RPM2200 RPM—
Compression Ratio17.0:1—
Battery12 V, CCA 950A12 V
StarterElectricElectric
Height264.0 cm—
Width185.0 cm—
Wheelbase223.0 cm244.0 cm
Ground Clearance53.0 cm—
Fuel Tank Capacity70.0 l125.0 l
Gears10 forward and 10 reverseInfinite forward and reverse
Chassis4×2 2WD4×2 2WD
Max. Travel Speed23.8 km/h33.5 km/h
BrakesHydraulic dry disc—
Drawbar CategoryII/III/I
Cabin TypeTwo-post ROPS or Cab.Open operator station
Hitch TypePosition and draft control—
Steering TypePower—
Front TiresAg: 9.00-16Ag: 7.50-16
Rear TiresAg: 16.9-34Ag: 15.5-38
Hydraulic TypeOpen centerOpen center
Total Flow56.8 LPM—
Steering Flow15.1 LPM—
Working Pressure179.3 bar—
Valves1 to 3—
Oil Capacity—8.5 l
Coolant Capacity—19.4 l
Sourceheavyequipments.net archive (imported 2026-10)heavyequipments.net archive (imported 2026-10)
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Side-by-side specification comparisons generated from the manufacturer-sourced model files. · 7,051