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

FeatureMassey Ferguson 451TractorAllis Chalmers 6140Tractor
Tractor TypeUtility TractorFarm Tractor
Horsepower38.8 kW29.8 kW
Weight2375.0 kg1995.0 kg
Lift Capacity1100.0 kg1450.0 kg
Transmission TypePartially synchronized with dry disc clutchSynchromesh with dry disc clutch
Length342.0 cm334.0 cm
Pump Flow37.9 LPM37.9 LPM
Years Made2002-20061982-1985
Engine ModelPerkins 1103C-33Toyosha
Engine Type4-stroke, liquid-cooled, inline4-stroke, liquid-cooled, inline
Fuel TypeDieselDiesel
Cylinders33
Displacement3294 cc2330 cc
Bore10.49 cm9.80 cm
Stroke12.70 cm10.31 cm
Rear PTO TypeLive or independentIndependent
Rear PTO Speed540 RPM540 RPM
Rated RPM2200 RPM2500 RPM
Compression Ratio19.2:123.0:1
Battery12 V12 V
StarterElectricElectric
Height245.0 cm223.0 cm
Width182.0 cm173.0 cm
Wheelbase199.0 cm193.0 cm
Ground Clearance26.0 cm—
Fuel Tank Capacity57.9 l50.0 l
Final DrivePlanetaryInboard planetary
Gears8 forward and 8 reverse10 forward and 2 reverse
Chassis4×2 2WD or 4×4 MFWD 4WD4×2 2WD or 4×4 MFWD 4WD
Max. Travel Speed11.4 km/h—
BrakesIndependent wet discMechanical wet disc
Drawbar CategoryII/II
Cabin TypeFlat-deck platform with two-post folding ROPSOpen operator station, ROPS and canopy .
Hitch TypePosition control and top-link draft sensingTop-link draft sensing
Steering TypePowerPower
Front TiresAg: 7.50-16 , 9.5-24Ag: 6.00-16, 7.50-16, 8.00-18
Rear TiresAg: 14.9-28Ag: 13.6-28, 14.9-28
Hydraulic TypeOpen centerOpen center
Total Flow85.2 LPM—
Steering Flow30.3 LPM—
SCV Flow54.9 LPM—
Valves2—
Coolant Capacity—8.5 l
Differential Lock—Mechanical rear
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