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

FeatureJohn Deere 40TractorJohn Deere ATractor
Tractor TypeUtility TractorRow-Crop Tractor
Horsepower12.5 kW—
Weight1900.0 kg2085.0 kg
Transmission TypeGear type with dry disc clutchUnsynchronized gear with dry disc clutch
Length291.0 cm340.0 cm
Years Made1953-19551939-1947
Engine ModelJohn DeereJohn Deere
Engine Type4-stroke, liquid-cooled, inline4-stroke, liquid-cooled, inline
Fuel TypeGasolineAll-fuel / Gasoline
Cylinders22
Displacement1647 cc5260 cc
Bore10.21 cm14.00 cm
Stroke10.21 cm17.09 cm
Rear PTO TypeTransmissionTransmission
Rear PTO Speed540 RPM540 RPM
Rated RPM1850 RPM—
Compression Ratio6.5:1All-fuel: 4.45:1Gasoline: 6.50:1
Battery6 V6 V
StarterElectricManual or electric
Height142.0 cm162.0 cm
Fuel Tank Capacity40.0 l68.1 l
Oil Capacity4.7 l10.4 l
Coolant Capacity13.2 l36.0 l
Transmission ModelJohn DeereJohn Deere
Gears4 forward and 1 reverse6 forward and 1 reverse
Chassis4×2 2WD4×2 2WD
Drawbar CategoryI—
Cabin TypeOpen operator stationOpen operator station
Steering TypeManualManual
Front TiresAg: 5.00-15; 6.00×16Ag: 24×4 steelAg: 5.50×16
Rear TiresAg: 9-24; 10-24; 11-24Ag: 50×6 steelAg: 9/10/11.00×38
Horsepower (Drawbar)—34.0 HP (25.4 kW) at 975 rpm
Max. Travel Speed—5.6 km/h
Brakes—Differential mechanical expanding shoe
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