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

FeatureInternational Harvester 684TractorDavid Brown 1290Tractor
Tractor TypeUtility TractorUtility Tractor
Horsepower51.5 kW—
Weight2550.0 kg2445.0 kg
Lift Capacity1630.0 kg—
Transmission TypeTwo-speed power shiftSynchromesh with dry disc clutch
Length360.0 cm342.0 cm
Pump Flow58.3 LPM27.4 LPM
Years Made1977-19841980-1983
Engine ModelInternational Harvester D-239J.I. Case
Engine Type4-stroke, liquid-cooled, inline4-stroke, liquid-cooled, inline
Fuel TypeDieselDiesel
Cylinders64
Displacement3916 cc3589 cc
Bore9.80 cm10.01 cm
Stroke12.90 cm11.40 cm
Rear PTO TypeIndependent with hydraulic wet disc clutchTransmission or independent
Rear PTO Speed540 RPM540 RPM
Rated RPM2400 RPM—
Battery12 V12 V
StarterElectricElectric
Height143.0 cm223.0 cm
Wheelbase212.0 cm210.0 cm
Ground Clearance27.0 cm33.0 cm
Fuel Tank Capacity75.7 l72.0 l
Oil Capacity8.3 l7.5 l
Coolant Capacity13.6 l14.0 l
Transmission Oil Capacity34.1 l27.0 l
Hydraulic Capacity34.1 l26.9 l
Transmission ModelTorque Amplifier—
Gears16 forward and 8 reverse12 forward and 4 reverse
Chassis4×2 2WD or 4×4 MFWD 4WD4×2 2WD or 4×4 MFWD 4WD
Max. Travel Speed9.5 km/h13.8 km/h
BrakesIndependent hydraulic wet discMechanical drum
Drawbar CategoryIIII/I
Cabin TypeROPS canopy or cabTwo-post ROPS
Hitch TypePosition and draft control—
Steering TypePowerPower
Front TiresAg: 7.50-16Ag: 7.50-16
Rear TiresAg: 16.9-30Ag: 16.9-30
Hydraulic TypeOpen centerOpen center
Valves1 or 21 or 2
Compression Ratio—17.0:1
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