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

FeatureInternational Harvester 686TractorJohn Deere 4040Tractor
Tractor TypeUtility TractorRow-Crop Tractor
Weight4690.0 kg4760.0 kg
Transmission TypeTwo-speed power shiftFull power shift
Length411.0 cm389.0 cm
Years Made1976-19801978-1982
Engine ModelInternational Harvester C291John Deere
Engine Type4-stroke, liquid-cooled, inline4-stroke, liquid-cooled, inline
Fuel TypeGasolineDiesel
Cylinders66
Displacement4769 cc6620 cc
Bore9.50 cm10.79 cm
Stroke11.20 cm12.09 cm
Rear PTO TypeIndependentIndependent
Rear PTO Speed540 RPM540 /1.000 RPM
StarterElectricElectric
Height266.0 cm278.0 cm
Wheelbase261.0 cm264.0 cm
Fuel Tank Capacity117.3 l140.0 l
Oil Capacity11.4 l16.1 l
Coolant Capacity19.9 l22.7 l
Transmission Oil Capacity60.6 l51.1 l
Hydraulic Capacity60.6 l—
Transmission ModelTorque AmplifierJohn Deere Powershift
Gears10 forward and 2 reverse8 forward and 4 reverse
Chassis4×2 2WD4×2 2WD or 4×4 MFWD 4WD
Max. Travel Speed4.7 km/h8.8 km/h
BrakesDiscDifferential hydraulic wet disc
Drawbar CategoryIIII/I
Cabin TypeTwo-post fixed ROPSSound-Gard Cab
Steering TypePowerPower
Front TiresAg: 7.50-16Ag: 9.5L-15
Rear TiresAg: 15.5-38Ag: 15.5-38
Hydraulic TypeOpen centerClosed center
Total Flow45.4 LPM—
Horsepower—74.7 kW
Lift Capacity—2447.0 kg
Pump Flow—87.1 LPM
Compression Ratio—16.7:1
Battery—Two 6V, CCA: 850A
Differential Lock—Pedal-actuated hydraulic
Valves—1 or 2
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