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

FeatureFord 7840TractorOliver 1800 Series B/CTractor
Tractor TypeRow-Crop TractorRow-Crop Tractor
Horsepower67.2 kW—
Weight4660.0 kg4842.0 kg
Lift Capacity3950.0 kg—
Transmission TypeFour-speed power shift with wet disc clutchPartial power shift with dry disc clutch
Length447.0 cm405.0 cm
Pump Flow75.7 LPM—
Years Made1991-19951962-1964
Engine ModelFord GenesisWaukesha-Oliver
Engine Type4-stroke, liquid-cooled, inline4-stroke, liquid-cooled, inline
Fuel TypeDieselGasoline
Cylinders66
Displacement6585 cc4637 cc
Bore11.20 cm9.80 cm
Stroke11.20 cm10.21 cm
Rear PTO TypeIndependentIndependent
Rear PTO Speed540 /1000 RPM540 /1.000 RPM
Compression Ratio17.5:18.5:1
BatteryOne 12V or two 12V , CCA 800AGas: 12V or diesel: 2x6V
StarterElectricElectric
Height279.0 cm202.0 cm
Wheelbase261.0 cm277.0 cm
Ground Clearance55.0 cm—
Fuel Tank Capacity217.6 l119.2 l
Oil Capacity20.9 l—
Coolant Capacity20.0 l—
Transmission Oil Capacity60.6 l—
Transmission ModelElectroShift/Pulse CommandHydra-Power
Final DriveInboard planetary—
Gears16 forward and 16 reverse12 forward and 4 reverse
Chassis4×2 2WD or 4×4 MFWD 4WD4×2 2WD or 4×4 MFWD 4WD
Max. Travel Speed30.7 km/h7.8 km/h
BrakesMechanical , hydraulic wet discDisc
Differential LockElectro-hydraulic—
Drawbar CategoryII—
Cabin TypeTwo-post foldable ROPS with flat-deck platform or Comfort Command CabOpen operator station
Hitch TypePosition control and top-link draft sensing7840 SLE : Electronic lower-link sensing—
Steering TypeHydrostatic powerPower assistHydrostatic power
Front TiresAg: 10.00-16Ag: 7.50-15
Rear TiresAg: 18.4-34Ag: 18.4-34
Hydraulic TypeOpen center or closed center load sensing—
Valves1 to 4—
Width—219.0 cm
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