John Deere 6120

John Deere 6120 Technical Specifications

John Deere 6120 is a Row-Crop tractor that was produced by the John Deere between 2002 – 2007.

Below you will find detailed technical specifications for John Deere 6120 covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.

John Deere 6120 Production

Manufacturer: John Deere
Type: Utility tractor
Factory: Mannheim, Baden-Wurttemberg, Germany
Original price: $36,000 (2007)

John Deere 6120 Power

Engine: 80 hp
59.7 kW
PTO (claimed): 65 hp
48.5 kW
Drawbar (tested): 53.5 hp
39.9 kW
PTO (tested): 72.3 hp
53.9 kW

John Deere 6120 Electrical

Ground: negative
Charging system: alternator
Charging volts: 14
Battery volts: 12

John Deere 6120 Mechanical

Chassis: 4×2 2WD
  4×4 MFWD 4WD (optional)
Steering: hydrostatic power
Brakes: hydraulic wet disc
Cab: Two-post ROPS. ConfortGard Cab optional.
Transmissions: 12-speed fully synchronized
  16-speed power shuttle
  16-speed partial power shift
  24-speed partial power shift


Type: pressue flow compensated
Valves: 4
Pump flow: 25 gpm
94.6 lpm

Tracktor Hitch

Rear Type: II
Rear lift: 4745 lbs
2152 kg

Power Take-off (PTO)

Rear PTO: independent
Rear RPM: 540
Engine RPM: 540@2124
540@2143 (reversible)
Front PTO: optional
Front RPM: 1000
Engine RPM: 1000@2185

Title serial numbers

Location: Serial number plate on the right side of the tractor`s main frame.

What year is my John Deere 6120? Serial Number Decoder

The serial number list shows the first tractor built in each year. The other tractors for that year will have successively higher numbers. Your serial number should be between two of the stated numbers.

The list only includes the numbers of the first tractors produced in each year. Your serial should be somewhere between two numbers.Unless you happen to be the first person to own a tractor, your number will not appear on the list.

John Deere 6120 Engine detail

Engine Detail
John Deere PowerTech 4045TL070
turbocharged diesel
Displacement: 276 ci
4.5 L
Bore/Stroke: 4.19×5.00 inches
106 x 127 mm
Emissions: Tier I
Power: 80 hp
59.7 kW
Air cleaner: dry
Rated RPM: 2300
Idle RPM: 875-2510
Operating RPM: 1000-2300
Torque: 195 lb-ft
264.4 Nm
Torque RPM: 1500
Firing order: 1-3-4-2
Starter volts: 12
Starter power: 4 hp
3.0 kW
Coolant capacity: 14.4 qts
13.6 L
Intake valve clearance: 0.014 inches
0.356 mm
Exhaust valve clearance: 0.018 inches
0.457 mm

John Deere 6120 Transmission overview

Engine Oil

Transmission: John Deere SyncroPlus
Type: fully synchronized
Gears: 12 forward and 4 reverse
Clutch: wet disc
Oil capacity: 55 qts
52.1 L
Oil type:
JD HyGard

Three gears (1-3) plus reverse (R) in four ranges (A-D). Directional, gear, and range changes are synchronized and may be shifting while moving by using the clutch. Optional creeper adds an additional nine forward and three reverse speeds for a total of 21-forward and 7-reverse.

John Deere 6120 Dimensions

Wheelbase: 94.5 inches
240 cm
Length: 162.7 inches
413 cm
Min Width: 61.8 inches
156 cm
Height: 98.3 inches
249 cm
Operating weight: 9,350 lbs
4241 kg (4WD cab)
Clearance (front axle): 23.1 inches
58 cm (2WD)
  19.3 inches
49 cm (4WD)
Front tread: 58.7 to 101.7 inches
149 to 258 cm (2WD)
Front tread: 59.7 to 79.4 inches
151 to 201 cm (4WD)
Rear tread: 63.1 to 95.1 inches
160 to 241 cm

John Deere 6120 Tests

OCED Tractor Test 2028

OCED Tractor Test 2028
Diesel 12-speed 4WD
February 2002 – May 2002,
Link: OCED Tractor Test 2028 file
PTO performance
Max power: 72.3 hp
53.9 kW
Fuel use: 4.3 gal/hour
16.3 l/hour
Power at rated engine speed: 66.9 hp
49.9 kW
Fuel use: 4.4 gal/hour
16.7 l/hour
Power at rated PTO speed: 69.3 hp
51.7 kW
Fuel use: 4.4 gal/hour
16.7 l/hour
Drawbar performance
Max power: 53.5 hp
39.9 kW
Fuel use: 4.4 gal/hour
16.7 l/hour
Max pull: 7,395 lbs
3354 kg


Is John Deere 6120 a good tractor?

The John Deere 6120 is one of the great tractors in the John Deere stable, and it has earned John Deere a fantastic reputation.

How much oil does a John Deere 6120 take?

Check out the John Deere 6120 oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.

Do tractors have VIN numbers?

Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.

What was the last year John Deere made the 6120?

The John Deere 6120 was an agricultural tractor model made from 2002 – 2007

Where is the serial number on a John Deere 6120?

Lookup serial number plate on the right side of the tractor`s main frame.

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