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

FeatureInternational Harvester 786TractorAllis Chalmers 7020Tractor
Tractor TypeRow-Crop TractorRow-Crop Tractor
Weight5260.0 kg5310.0 kg
Length419.0 cm414.0 cm
Years Made1980-19811978-1981
Engine ModelInternational Harvester D358Allis Chalmers 649I
Engine Type4-stroke, liquid-cooled, inline4-stroke, liquid-cooled, inline
Fuel TypeDieselDiesel
Cylinders66
Displacement5867 cc4932 cc
Bore9.80 cm9.80 cm
Stroke12.90 cm10.79 cm
Rear PTO TypeIndependentIndependent
Rear PTO Speed540 /1000 RPM540 /1.000 RPM
BatteryTwo 12V, CCA 470A12 V
StarterElectricElectric
Height284.0 cm294.0 cm
Wheelbase256.0 cm269.0 cm
Ground Clearance33.0 cm—
Fuel Tank Capacity189.3 l193.0 l
Oil Capacity11.4 l18.9 l
Coolant Capacity22.7 l24.6 l
Transmission Oil Capacity85.2 l28.0 l
Hydraulic Capacity85.2 l28.0 l
Transmission ModelTorque AmplifierPower Shift
Gears16 forward and 8 reverse12 forward and 2 reverse
Chassis4×2 2WD4×2 2WD
Max. Travel Speed15.1 km/h11.6 km/h
BrakesHydraulic discDifferential hydraulic wet disc
Drawbar CategoryII/IIII/II
Cabin TypeOpen operator station or CabAcousta-Cab
Steering TypePower assistHydrostatic power
Front TiresAg: 9.5L-15Ag: 10.00-16
Rear TiresAg: 18.4-34Ag: 18.4-38
Hydraulic TypeOpen centerClosed center
Horsepower—108.9 kW
Lift Capacity—3030.0 kg
Transmission Type—Partial power shift
Pump Flow—51.1 LPM
Rated RPM—2300 RPM
Compression Ratio—16.25:1
Width—235.0 cm
Final Drive—Inboard planetary
Total Flow—170.3 LPM
Steering Flow—36.0 LPM
Valves—2 or 3
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