john deere 8120
![]() | 2002 - 2005
8020 SeriesRow-Crop tractor | 2002 - 2005 | 8020 Series | Row-Crop tractor |
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2002 - 2005 | ||||
8020 Series | ||||
Row-Crop tractor |
2002 - 2005 | |
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8020 Series | |
Row-Crop tractor |
Production | |
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Manufacturer | John Deere |
Row-Crop tractor | |
Built in Waterloo, Iowa, USA |
Variants | |
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8120 | wheeled tractor |
8120T | crawler |
John Deere 8120 Engine | |
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John Deere 8.1L 6-cyl diesel | |
Engine details ... ![]() |
John Deere 8120 Transmission | |
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16-speed full power shift | |
Transmission details ... ![]() |
John Deere 8120 Power | |
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Engine (gross) | 208 hp
155.1 kW |
Engine (net) | 200 hp
149.1 kW |
Engine (max) | 230 hp
171.5 kW |
PTO (claimed) | 170 hp
126.8 kW |
Drawbar (tested) | 148.45 hp
110.7 kW |
PTO (tested) | 199.71 hp
148.9 kW |
Performance test details ... ![]() |
Mechanical | |
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Two- or four-wheel drive | |
Steering | hydrostatic power |
Hydraulic wet disc brakes | |
Cab standard. |
Photos | |
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![]() | |
John Deere 8120 photos... ![]() |
Capacity | |
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Fuel | 135 gal
511.0 L |
| 160 gal (optional)
605.6 L |
Hydraulic system | 37 gal
140.0 L |
| 39.6 gal (ILS)
149.9 L |
Front hubs | 3.6 qts
3.4 L |
| 4.2 qts (ILS)
4.0 L |
Front diff. | 14.2 qts
13.4 L |
Hydraulics | |
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Type | closed center pressure-flow compensated (PFC) |
Capacity | 37 gal
140.0 L |
| 39.6 gal (ILS)
149.9 L |
Pressure | 2900 psi
200.0 bar |
Valves | 5 |
SCV flow | 30 gpm
113.6 lpm |
Total flow | 33.5 gpm*With standard 45cc pump
126.8 lpm |
| 42.5 gpm*Optional 57cc pump
160.9 lpm |
Tractor hitch | |
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Rear Type | III,IIIN |
Rear lift | 12,300 lbs
5579 kg |
| 15,180 lbsOptOptional
6885 kg |
Front Hitch | IIIN OptOptional |
Front lift | 11000 lbs
4989 kg |
Power Take-off (PTO) | |
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Rear PTO | independent |
Clutch | hydraulic wet discs |
Rear PTO Type | 1000 (1.75) |
| 540/1000 (1.375 optional) |
Engine RPM | 540@1975 |
| 1000@2200 |
Dimensions & Tires | |
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2WD Wheelbase | 123.6 inches
313 cm |
4WD Wheelbase | 116.9 inches
296 cm |
ILS Wheelbase | 115.7 inches
293 cm |
| 118.9 inches (long frame)
302 cm |
Weight | 19100 to 22450 pounds |
Front tire | 11.00-24 |
Rear tire | 480/80R46 |
Full dimensions and tires ... ![]() |
8120 Serial Number Location | |
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![]() | |
Rear of tractor. |
8120 Serial Numbers | |
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2002 | 1001 |
2003 | 10001 |
2004 | 20001 |
2005 | 30001 |
FAQ: How to read a serial number table. |
Electrical | |
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Ground | negative |
Charging system | alternator |
Charging amps | 150 |
Batteries | 2 |
Battery CCA | 925 |
Battery volts | 12 |
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