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Siirry sivupalkkiinSiirry alaosaanJohn Deere 8120-8520










The JD 8020 series comprised five models with power outputs ranging from 200 to 295 hp. All of them were equipped with an 8.1 liter common-rail engine. In addition to the rated power, they could deliver another 20–30 hp at lower engine speeds, and peak torque was up by 40 percent. The transmission remained a 16 + 5-speed full-powershift unit, now supplemented by shift-automation that worked the same way as the quick-shift system on the smaller model ranges.
Optional equipment included computer-controlled hydraulic suspension on both the front and rear axles, and an active air-suspension seat was also available. As standard, the tractors featured headland management, and—unlike on the smaller series—you could program gear changes into the system. The hydraulic valves were electrically controlled, with four valve blocks fitted as standard. Both hydraulic performance and overall dimensions increased noticeably, while the weights stayed under control. Alongside the standard models, there were also T-marked versions fitted with rubber tracks.
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| Model | John Deere 8120 | John Deere 8220 | John Deere 8320 | John Deere 8420 | John Deere 8520 |
|---|---|---|---|---|---|
| Manufacturer name | John Deere | John Deere | John Deere | John Deere | John Deere |
| Imported to Finland | Yes | Yes | Yes | Yes | Yes |
| Years | 2001-06 | 2001-06 | 2001-06 | 2001-06 | 2001-06 |
| Engine model | 6081H | 6081H | 6081H | 6081H | 6081H |
| Cyl/Turbo/Intercooler | 6TI | 6TI | 6TI | 6TI | 6TI |
| Displacement | 8148 cm³ | 8148 cm³ | 8148 cm³ | 8148 cm³ | 8148 cm³ |
| Bore x stroke | 115,9×128,5 mm | 115,9×128,5 mm | 115,9×128,5 mm | 115,9×128,5 mm | 115,9×128,5 mm |
| Rated power | 200/2200 hp DIN/rpm | 225/2200 hp DIN/rpm | 250/2200 hp DIN/rpm | 270/2200 hp DIN/rpm | 295/2200 hp DIN/rpm |
| Max power | 220/1950 hp DIN/rpm | 250/1950 hp DIN/rpm | 275/1950 hp DIN/rpm | 300/1950 hp DIN/rpm | 325/1950 hp DIN/rpm |
| Torque | - | - | - | - | - |
| Gears | 16+5 | 16+5 | 16+5 | 16+5 | 16+5 |
| Synchronized gears | powershift | powershift | powershift | powershift | powershift |
| Powershift gears | powershift | powershift | powershift | powershift | powershift |
| Reverser | hydr. | hydr. | hydr. | hydr. | hydr. |
| Speeds in km/h | 2,0-42,0 | 2,0-42,0 | 2,0-42,0 | 2,0-42,0 | 2,0-42,0 |
| Hydr. flow l/min | 162 l/min | 162 l/min | 162 l/min | 162 l/min | 162 l/min |
| Hydraulic pressure | 200 bar | 200 bar | 200 bar | 200 bar | 200 bar |
| Lift controls | elec. | elec. | elec. | elec. | elec. |
| Lift capacity | 9500 kg | 9500 kg | 11000 kg | 11000 kg | 11000 kg |
| PTO speeds | 1000 | 1000 | 1000 | 1000 | 1000 |
| Brakes | wet disc | wet disc | wet disc | wet disc | wet disc |
| Steering | hydrost. | hydrost. | hydrost. | hydrost. | hydrost. |
| Turning circle m 4WD | 10.4 | 10.4 | 10.4 | 10.4 | 10.4 |
| Front tyres 4WD | 600/65R28 | 600/65R28 | 600/65R30 | 600/65R30 | 600/65R30 |
| Rear tyres 4WD | 710/70R38 | 710/70R38 | 710/70R42 | 710/70R42 | 710/70R42 |
| Weight 4WD | 9000 kg | 9000 kg | 9000 kg | 9100 kg | 9700 kg |
| Height with cab | 315 cm | 315 cm | 320 cm | 320 cm | 320 cm |
| Length (2WD/4WD) | 585 cm | 585 cm | 585 cm | 585 cm | 585 cm |
| Wheelbase (2WD/4WD) | 295 cm | 295 cm | 295 cm | 295 cm | 295 cm |
| Fuel tank | 606 l | 606 l | 606 l | 606 l | 606 l |
| Cab noise level | 72 dB | 72 dB | 72 dB | 72 dB | 72 dB |
| Solid cab | x | x | x | x | x |
| Diff. lock | friction lock | friction lock | friction lock | friction lock | friction lock |
| Autom. differential locks | x | x | x | x | x |
| Air suspension seat | x | x | x | x | x |
| Air conditioning | x | x | x | x | x |
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