9 material differences · fewer than 12

Tractor oneDeutz-Fahr Agrotron M 420from 2010No measured PTO figureTractor twoJohn Deere 74202003–2007127.4 hpMeasured at the PTO · OECD Test 2081

Which should you choose?

We will not advise between these two machines, because their power is not stated as the same quantity on both; the drive differs (4WD; Two-wheel or four-wheel drive); they were not built in overlapping years (2010–2010; 2003–2007). The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.

Field by field

9 material differences · 1 fields identical or within 5%, which is not counted as material

Deutz-Fahr Agrotron M 420 and John Deere 7420, field by field
FieldAgrotron M 4207420Gap
Measured performance
PTO power, measured measured—127.4 hp—
Drawbar power, measured measured—112.5 hp—
Engine
Engine declared—John Deere 6068HRW01—
Displacement declared—6.79 L—
Maximum torque declared486 lb·ft · 659 N·m414 lb·ft · 561.0 N·m+17% Agrotron M 420
Transmission
Top speed declared—24.9–31.1 mph · 40–50 km/h—
Clutch declared—Pedal-operated, hydraulic wet multi-disc clutch—
Hydraulics & hitch
Hydraulic centre declaredOpen centreClosed centrediffers
Hydraulic control declared—Load sensing—
Pump flow declared—31.7 gpm · 120.0 L/min—
Rear PTO speeds declared540/1000/540E/1000E rpm540/1000 rpmdiffers
Weight & dimensions
Unladen weight declared11,982 lb · 5,435 kg12,899 lb · 5,851 kg+8% 7420
Maximum permissible mass declared19,842 lb · 9,000 kg22,046 lb · 10,000 kg+11% 7420
Wheelbase declared95.2 in · 2,419 mm104.3–112.8 in · 2,650–2,865 mmdiffers
Length declared171.6 in · 4,359 mm176.0 in · 4,471 mm—
Width declared100.0 in · 2,540 mm96.0–105.7 in · 2,438–2,686 mmdiffers
Ground clearance declared20.5 in · 520 mm16.3–20.5 in · 415–520 mmdiffers
Turning radius, braked declared15.3 ft · 4.65 m——
Fuel tank declared190.2 qt · 180 L218.7 qt · 207.0 L+15% 7420

Height is not in this table. It is not one measurement: the sources measure it to different points — over the cab on some machines, over the steering wheel or the exhaust on others — and the same tractor measured two ways can differ by most of a metre. It appears here only when both machines' figures carry the point they were measured to and it is the same point, which is not the case for these two. Each machine's own page prints its height as its source gives it.

Deutz-Fahr Agrotron M 420 sources

Source
  • Source: Traktorenlexikon, “Deutz-Fahr Agrotron M 420”

John Deere 7420 sources

Source
  • Source: OECD test report 2081, 2003
  • Source: OECD test report 2081, 2003
  • Source: Traktorenlexikon, “John Deere 7420”