Compare/John Deere 6R 120 vs John Deere 7420

John Deere 6R 120 vs John Deere 7420

Verdict: John Deere 6R 120 vs John Deere 7420

The John Deere 6R 120 and the John Deere 7420 are both tractors — here is how they stack up on the figures that matter. John Deere 6R 120 leads on rated power with 118 hp against 117 hp. John Deere 6R 120 is the lighter machine (6,100 kg vs 12,890 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 7420 holds more fuel (207.0 L vs 195 L) for longer stints between fills. John Deere 6R 120 is the newer design (2022 vs 2003). In short: choose the John Deere 6R 120 for outright pulling power, or the John Deere 7420 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

John Deere

Fit score

Best match

Clear

John Deere

Fit score

Best match

Clear

Rated power

118 hp

117 hp

Confidence

98%

Guide price

—

Overview

Manufacturer

John DeereReference

liquid-cooledReference

available with MFWD onlyReference

Final drives

—

inboard planetaryReference

Differential lock

—

electro-hydraulic rearReference

Engine

Engine (gross)

88.0 kWReference

—

Engine (max)

97.0 kWReference

—

Displacement

4.5 LReference

6.8 LReference

Bore/Stroke

106 x 127 mmReference

Emissions

Tier IVReference

—

Rated Power (gross)

88.0 kWReference

—

Maximum Power (gross)

97.0 kWReference

—

Torque

562.7 NmReference

610.2 NmReference

Torque RPM

1600Reference

1500Reference

Starter

electricReference

—

Starter volts

12Reference

Fuel Type

DieselReference

—

No of Cylinders

4Reference

—

Emissions compliance

Final Tier 4Reference

—

Engine torque at rated speed

Option 1: 2,100 rpm\\nOption 2: 562 NmReference

—

Interval for engine oil change

500 hoursReference

—

Interval for engine coolant change

6,000 hoursReference

—

Cooling system

28 LReference

—

Engine

—

100.7 kWReference

Drawbar (tested)

—

76.7 kWReference

Power

—

100.7 kWReference

Air cleaner

—

dual paper elementsReference

Compression

—

17:1Reference

Rated RPM

—

2100Reference

Idle RPM

—

850-2250Reference

Operating RPM

—

1300-2100Reference

Firing order

—

1-5-3-6-2-4Reference

Starter power

—

3.1 kWReference

Oil capacity

—

56.0 LReference

Coolant capacity

—

28.0 LReference

Max power

—

76.7 kWReference

Power at rated engine speed

—

86.9 kWReference

Transmission

John Deere AutoQuad Plus EcoReference

Infinitely Variable Transmission (IVT)Reference

Gears

24 forward and reverseReference

infinite forward and reverseReference

Transmission Type

Power QuadReference

—

forward and reverse options

IVTReference

—

Wheel Drive

MFWDReference

—

Rear Axle Drive Type

Inboard planetary three pinionReference

—

Interval for hydraulic/transmission oil change

1,500 hoursReference

—

PTO & Hydraulics

PTO (claimed)

67.9 kWReference

85.8 kWReference

Type

partial power shiftReference

Pump flow

113.6 lpmReference

101.1 lpmReference

Rear Type

IIIN/IIReference

IIReference

Rear lift

4100 kgReference

3946 kgReference

Front Hitch

IIINReference

—

Front lift

3299 kgReference

—

PTO (tested)

—

95.0 kWReference

Valves

—

4Reference

Rear PTO

—

independentReference

Clutch

—

electro-hydraulicReference

Rear PTO Type

—

540/1000 (1.375)Reference

Front PTO

—

independentReference

Front PTO Type

—

1000Reference

Dimensions

Wheelbase

259 cmReference

—

Weight

6100 kgReference

12890 to 13280 poundsReference

2WD Wheelbase

—

286 cmReference

4WD Wheelbase

—

264 cmReference

Front tire

—

14.9R28Reference

Rear tire

—

18.4R38Reference

Ag front

—

14.9R28Reference

Ag rear

—

18.4R38Reference

Length

—

516 cmReference

Width

—

243 cmReference

Height

—

289 cmReference

4WD Clearance (front axle)

—

52 cmReference

Flanged rear axle

—

1663 mmReference

Rack-and-pinion rear axle

—

86 by 2806 mmReference

Front tread

—

150 to 211 cmReference

Rear tread

—

152 to 302 cmReference

Shipping

—

5846 kgReference

Operating

—

6023 kgReference

Ballasted

—

7101 kgReference

Max Drawbar

—

2247 kgReference

Max front axle

—

6849 kgReference

Max rear axle

—

7795 kgReference

Electrical

Ground

negativeReference

Charging system

alternatorReference

Battery volts

12Reference

Alternator size

120 ampReference

—

Battery options

12 VReference

—

Total cold cranking amps

1,200 CCAReference

—

Charging amps

—

150Reference

Battery CCA

—

850Reference

General

Make & Model

NJDXL06.8,324Reference

—

Creeper

Available with AutoQuadReference

—

SCV control

Joystick: AvailableReference

—

Drawbar category

Category 2Reference

—

Drawbar Maximum vertical load

3,085-5,400 lbReference

—

Rear Axle Differential Lock

ElectrohydraulicReference

—

Radio

OptionalReference

—

Country of manufacturer

GermanyReference

—

Type of headlight bulb

Standard: 65-W halogen W\\nOptional: LEDReference

—

Capacities

Capacity

275 cu. in.Reference

—

Fuel tank

195 LReference

207.0 LReference

Diesel exhaust fluid (DEF) tank

13 LReference

—

Crankcase oil volume

4.2 U.S. galReference

—

Max capacity

—

9995 kgReference

Power

Max Power

130 hpReference

—

Rated Power

120 hpReference

—

Power boost

10 percentReference

—

PTO

PTO Power

91 hpReference

—

PTO torque rise

40 percentReference

—

Rear PTO Power

AvailableReference

—

Rear PTO Control

Electrical modulationReference

—

Rear PTO RPM

1,000 rpmReference

—

Front PTO Power

AvailableReference

—

Engine Speed on Front PTO speed

Option 1: 1,000 ):\\nOption 2: 540 rpmReference

—

Hydraulics

Pump Rated Output (total)

114 l/minReference

—

Remote Valves

8Reference

—

Number of rear selective control valves (SCVs)

fiveReference

—

Rear Hitch category (SAE designation)

2/3NReference

—

Rear Hitch maximum lift capacity

7,937Reference

—

Rear Hitch Sensing Type

ElectrohydraulicReference

—

Front Hitch category (SAE designation)

Category 3NReference

—

Front Hitch lift capacity beyond lift points

At hook ends: 3,300 kg\\n7,275 lbReference

—

Dimensions & weight

Overall Width

1,680 mmReference

—

Overall weight

6,099.9 kgReference

—

Wheels & tyres

Rear Wheel Type

420/85R30 (16.9R-30)Reference

—

Rear wheel tread range

MFWD: 1,524-2,235 mm 60-88 in.\\nTLS: 1,524-2,235 mm 60-88 in.Reference

—

Operator station

Cab Availability

AvailableReference

—

Cab glass area

65.77 sq ftReference

—

Cab space

117.59 cu ftReference

—

Seat Suspension

AvailableReference

—

Steering & brakes

Steering type

Hydrostatic powerReference

—

Variants

7420

—

row-cropReference

7420HC

—

high-cropReference

John Deere 7420 attachments

7420 Serial Numbers

2003

—

1001Reference

2004

—

10001Reference

2005

—

30001Reference

2006

—

45001Reference

2007

—

60001Reference

Location:

—

On the main tractor frame, right side, above the front axle.Reference

Test results

Fuel use

—

25.4 l/hourReference

Speeds

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.