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

FeatureJCB Fastrac 155TractorJohn Deere 4450Tractor
Tractor TypeFarm TractorRow-Crop Tractor
Horsepower125.3 kW115.6 kW
Weight6520.0 kg6985.0 kg
Lift Capacity3000.0 kg3364.0 kg
Transmission TypeSynchromeshFull power shift with Perma-Clutch wet disc
Length576.0 cm416.0 cm
Pump Flow60.0 LPM100.3 LPM
Years Made1993-19971983-1988
Engine ModelPerkins 1000-6 T4John Deere
Engine Type4-stroke, liquid-cooled, inline4-stroke, liquid-cooled, inline
Fuel TypeDieselDiesel
Cylinders66
Displacement5984 cc7636 cc
Bore10.01 cm11.61 cm
Stroke12.70 cm12.09 cm
Rear PTO TypeIndependent with electro-hydraulic clutchIndependent
Rear PTO Speed540 /1.000, 1.000 RPM540 RPM
Front PTO TypeIndependent—
Front PTO Speed540 /1.000, 1.000 RPM—
Torque Power1400 RPM—
Torque Speed602.0 N·m—
Rated RPM2400 RPM2700 RPM
BatteryTwo 12V2 x6V or 12V
StarterElectricElectric
Height289.0 cm295.0 cm
Wheelbase300.0 cm267.0 cm
Ground Clearance48.0 cm—
Fuel Tank Capacity280.0 l246.0 l
Hydraulic Capacity76.8 l—
Gears36 forward and 12 reverse15 forward and 4 reverse
Chassis4×4 4WD4×2 2WD or 4×4 MFWD 4WD
BrakesPneumatic dry discHydraulic wet disc
Differential LockElectro-hydraulic rear—
Drawbar CategoryIIIIIN/II
Cabin TypeCab standard with air conditioningSound-Gard cab standard or four-post Roll-Gard ROPS
Hitch TypeElectronic draft control—
Steering TypePower assistPower
Front TiresAg: 480/70R30Ag: 10.00-16
Rear TiresAg: 480/70R30Ag: 18.4-38
Working Pressure209.9 bar157.0 bar
Valves22 to 3
Compression Ratio—15.8:1
Oil Capacity—17.0 l
Coolant Capacity—25.6 l
Transmission Oil Capacity—51.0 l
Transmission Model—John Deere Power Shift
Max. Travel Speed—9.7 km/h
Hydraulic Type—Closed center
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