Introduction
John Deere 6120: Technical Overview of the Utility Tractor
The John Deere 6120 is a utility tractor produced between 2002 and 2007 in Mannheim, Germany. As part of the 6000 series, this model was designed to offer versatility and reliability for varied agricultural operations, featuring an 80 horsepower engine and multiple transmission configurations.
Engine and Performance
The tractor is powered by a 4.5-liter, four-cylinder liquid-cooled engine, delivering a rated power of 80 hp (59.7 kW) at 2300 RPM. It generates 256 lb-ft (347.1 Nm) of torque at 1500 RPM. The engine is maintained by a dry air cleaner system and features an oil capacity of 16.8 quarts (15.9 L) with recommended 500-hour service intervals.
Transmission Systems
The 6120 offers four distinct transmission types to suit specific operational needs: the 12-speed fully synchronized SyncroPlus, the 16-speed SyncroPlus Power Reverser, the 16-speed partial power shift PowrQuad, and the 24-speed partial power shift PowrQuad Plus. All variants utilize a wet disc clutch and JD HyGard oil, with options for a creeper gear set on specific models.
Hydraulics and PTO
The hydraulic system utilizes a pressure-flow compensated pump providing 25 gpm (94.6 lpm) and features four valves. The rear PTO is independent, offering 540 RPM at 2124 engine RPM, with an optional 1000 RPM setting available. A front PTO is also offered as an optional feature to enhance implement compatibility.
Dimensions and Chassis
The tractor is built on a 94.5-inch (240 cm) wheelbase with a total length of 162.7 inches (413 cm). The operating weight for the 4WD cab model is approximately 9,350 lbs (4,241 kg). Steering is assisted by a hydrostatic power system, and the tractor is equipped with hydraulic wet disc brakes for reliable stopping power.
Conclusion
The John Deere 6120 serves as a capable utility tractor suitable for a broad range of agricultural tasks. Its combination of multiple transmission choices, adjustable tread widths, and Category II rear hitch lift capacity of 4,745 lbs makes it a flexible machine for field work, transport, and implement management.
Production Information of John Deere, 6120
- Utility tractor
- Built in Mannheim, Baden-Württemberg, Germany
| Manufacturer | John Deere |
|---|---|
| Original price | $36,000 (2007) |
Dimension and Tires Information of John Deere, 6120
| Wheelbase | 94.5 inches [240 cm] |
|---|---|
| Operating weight | 9,350 lbs (4WD cab) [4241 kg] |
| Height | 98.3 inches [249 cm] |
| Length | 162.7 inches [413 cm] |
| Front tread | 58.7 to 101.7 inches [149 to 258 cm (2WD)] |
| Clearance (front axle) | 23.1 inches (2WD) [58 cm] |
| Min Width | 61.8 inches [156 cm] |
| Rear tread | 63.1 to 95.1 inches [160 to 241 cm] |
| Front tread | 59.7 to 79.4 inches [151 to 201 cm (4WD)] |
| Standard tires (ag) | Front: 10.00-16. Rear: 16.9-30 (2WD) |
|---|---|
| Standard tires (ag)(optional) | Front: 12.4-24. Rear: 16.9-30 (4WD) |
Engine Specifications of John Deere, 6120
- Liquid-cooled
| Coolant capacity | 14.4 qts [13.6 L] |
|---|---|
| Firing order | 1-3-4-2 |
| Exhaust valve clearance | 0.018 inches [0.457 mm] |
| Power | 80 hp [59.7 kW] |
| Intake valve clearance | 0.014 inches [0.356 mm] |
| Rated RPM | 2300 |
| Idle RPM | 845-2465 |
| Air cleaner | Dry |
| Displacement | 276 ci [4.5 L] |
| Emissions | Tier II |
| Oil capacity | 16.8 qts [15.9 L] |
| Oil change | 500 h |
| Bore/Stroke | 4.19x5.00 inches [106 x 127 mm] |
| Torque RPM | 1500 |
| Exhaust valve clearance | 0.018 inches [0.457 mm] |
| Intake valve clearance | 0.014 inches [0.356 mm] |
| Torque | 256 lb-ft [347.1 Nm] |
| Operating RPM | 1000-2300 |
Transmission Information of John Deere, 6120
Transmission variants 1
- 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.
| Transmission | John Deere SyncroPlus |
|---|---|
| Oil capacity | 55 qts [52.1 L] |
| Clutch | Wet disc |
| Type | Fully synchronized |
| Oil type | JD HyGard |
| Gears | 12 forward and 4 reverse |
Transmission variants 2
- Four gears (1-4) in four ranges (A-D) with left-hand reverser. Gear and range shifts are synchronized. Power shuttle shifting between forward and reverse. Only available on open-station (ROPS) equipped tractors.
| Transmission | John Deere SyncroPlus Power Reverser |
|---|---|
| Oil capacity | 55 qts [52.1 L] |
| Clutch | Wet disc |
| Type | Power shuttle |
| Oil type | JD HyGard |
| Gears | 16 forward and reverse |
Transmission variants 3
- Four gears (1-4) in four ranges (A-D) with reverser lever. Clutchless power shift between gears (1-4) and direction changes (power shuttle). Range shifts (A-D) are synchronized, and may be shifted while the tractor is moving by using the clutch. Optional creeper adds an additional twelve speeds for 28 forward and reverse. The PowrQuad uses a gear-shift lever while the PowrQuad Plus (cab tractors only) offers push-button gear shifting.
| Transmission | John Deere PowrQuad |
|---|---|
| Oil capacity | 51.8 qts [49.0 L] |
| Clutch | Wet disc |
| Type | Partial power shift |
| Oil type | JD HyGard |
| Gears | 16 forward and reverse |
Transmission variants 4
- 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.
| Transmission | John Deere PowrQuad Plus |
|---|---|
| Oil capacity | 52.8 qts [50.0 L] |
| Clutch | Wet disc |
| Type | Partial power shift |
| Oil type | JD HyGard |
| Gears | 24 forward and reverse |
- 12-speed fully synchronized
- 24-speed partial power shift
- 16-speed power shuttle
- 16-speed partial power shift
Mechanical Specs of John Deere, 6120
- Two-post ROPS. ConfortGard Cab optional.
- Hydraulic wet disc brakes
| Drive | 4x2 2WD |
|---|---|
| Drive(optional) | 4x4 MFWD 4WD (optional) |
| Steering | Hydrostatic power |
Power Information of John Deere, 6120
| Front PTO | Optional |
|---|---|
| Rear PTO | Independent |
| Rear PTO(optional) | 540@2143 (reversible) |
| Engine RPM | 540@2124 |
| Rear PTO Type | 540 |
| Front PTO Type | 1000 |
| Front PTO Type(optional) | 1000@2208 |
| Front PTO Type(optional) | 540/1000 |
| Engine RPM | 1000@2185 |
Hydraulics Specifications of John Deere, 6120
| Type | Pressue flow compensated |
|---|---|
| Valves | 4 |
| Pump flow | 25 gpm [94.6 lpm] |
Three-Point Hitch of John Deere, 6120
| Rear Type | II |
|---|---|
| Rear lift | 4745 lbs [2152 kg] |
Electrical System of John Deere, 6120
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Charging system | Alternator |
| Charging volts | 14 |
Where it sits
With 80 HP, the John Deere 6120 sits just below 6110 (84 HP) in John Deere's range. Its power puts it in the 53th percentile of 2000s models in our database (2822 machines).
Frequently asked questions
How much horsepower does the John Deere 6120 have?
The John Deere 6120 delivers 80 HP.
What years was the John Deere 6120 produced?
The John Deere 6120 was produced in 2002-2007.
What transmission does the John Deere 6120 use?
The John Deere 6120 uses a John Deere SyncroPlus transmission.
How much does the John Deere 6120 weigh?
The John Deere 6120 weighs 9,350 lbs (4WD cab) [4241 kg].
Is the John Deere 6120 4WD?
The John Deere 6120 is available in 2WD/4WD.