Compare/John Deere 6120 vs John Deere 820

John Deere 6120 vs John Deere 820

Verdict: John Deere 6120 vs John Deere 820

The John Deere 6120 and the John Deere 820 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 67 hp. John Deere 6120 is the lighter machine (4,241 kg vs 7,850 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 820 holds more fuel (123.0 L vs 113.9 L) for longer stints between fills. John Deere 6120 is the newer design (2002 vs 1956). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

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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

67 hp

Confidence

98%

Guide price

—

Overview

Manufacturer

John DeereReference

Four gears (1-4) in six ranges (A-F) with reverser lever. Push-button power shifting between gears (1-4) and power shuttle directional shifting using the reverser lever. Ranges (A-F) may be shifted on the move by using the clutch.Reference

With 15-34 rear tires.Reference

Original price

$36,000 (2007)Reference

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Drive

4x4 MFWD 4WD (optional)Reference

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Steering

hydrostatic powerReference

power optionalReference

Total built

—

7,080Reference

Final drives

—

bull gearReference

Variants

6120

utility chassisReference

—

6120L

low-profile chassisReference

—

Engine

Fuel tank

113.9 LReference

123.0 LReference

Engine

59.7 kWReference

—

Drawbar (tested)

39.9 kWReference

50.1 kWReference

Displacement

4.5 LReference

7.7 LReference

Bore/Stroke

106 x 127 mmReference

156 x 203 mmReference

Emissions

Tier IIReference

—

Power

59.7 kWReference

—

Air cleaner

dryReference

oil bathReference

Rated RPM

2300Reference

1125Reference

Idle RPM

845-2465Reference

—

Operating RPM

1000-2300Reference

—

Torque

347.1 NmReference

—

Torque RPM

1500Reference

—

Firing order

1-3-4-2Reference

1-2Reference

Starter volts

12Reference

—

Starter power

3.0 kWReference

—

Coolant capacity

13.6 LReference

7.6 LReference

Intake valve clearance

0.356 mmReference

—

Exhaust valve clearance

0.457 mmReference

—

Oil capacity

50.0 LReference

—

Oil change

500 hReference

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Max power

39.9 kWReference

50.1 kWReference

Power at rated engine speed

49.9 kWReference

—

Aux. fuel

—

0.9 LReference

Belt (claimed)

—

56.4 kWReference

Plows

—

5-6Reference

Belt (tested)

—

54.3 kWReference

Starter type

—

gasoline pony motorReference

Belt power (max)

—

54.3 kWReference

Transmission

John Deere PowrQuad PlusReference

—

Gears

24 forward and reverseReference

6 forward and 1 reverseReference

Clutch

wet discReference

9-inch dry discReference

Oil type

JD HyGardReference

—

PTO & Hydraulics

PTO (claimed)

48.5 kWReference

—

PTO (tested)

53.9 kWReference

—

Type

partial power shiftReference

unsynchronized gearReference

Valves

4Reference

1Reference

Pump flow

94.6 lpmReference

—

Rear Type

IIReference

—

Rear lift

2152 kgReference

—

Rear PTO

independentReference

Rear PTO Type

540/1000Reference

540 (1.375)Reference

Engine RPM

1000@2185Reference

—

Front PTO

optionalReference

—

Front PTO Type

1000Reference

—

Power at rated PTO speed

51.7 kWReference

—

Dimensions

Wheelbase

240 cmReference

216 cmReference

Weight

4241 kgReference

7850 to 8600 poundsReference

Front tire

10.00-16Reference

7.50-18Reference

Rear tire

16.9-30 (2WD)Reference

15-34Reference

Standard tires (ag)

Front: 12.4-24. Rear: 16.9-30 (4WD)Reference

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Length

413 cmReference

362 cmReference

Min Width

156 cmReference

—

Height

249 cmReference

205 cmReference

Operating weight

4241 kgReference

—

Clearance (front axle)

49 cmReference

—

Front tread

151 to 201 cmReference

143 to 160 cmReference

Rear tread

160 to 241 cmReference

163/173 cmReference

Ag front

—

7.50-18Reference

Ag rear

—

18-26Reference

Shipping

—

3560 kgReference

Operating

—

3900 kgReference

Ballasted

—

5443 kgReference

6120 Serial Numbers

Location:

Serial number plate on the right side of the tractor's main frame.Reference

—

Electrical

Ground

negativeReference

positiveReference

Charging system

alternatorReference

generatorReference

Charging volts

14Reference

—

Battery volts

12Reference

6Reference

Test results

Fuel use

16.7 l/hourReference

—

Max pull

3354 kgReference

3931 kgReference

Belt fuel use (max)

—

15.9 l/hourReference

Speeds

820 Serial Numbers

1956

—

8000000 (green-dash)Reference

1957

—

8203100 (black-dash)Reference

1958

—

8203850 (black-dash)Reference

Final

—

8207080 (black-dash)Reference

Capacities

Diameter

—

30 cmReference

Width

—

201 cmReference

RPM

—

1125Reference

Speed

—

1097.28 meters/minReference

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.