John Deere 8120 VS John Deere 4020 specs comparison
John Deere 8120
General Infos| Make | John Deere |
| Model | 8120 |
| Country | United states |
| Production | From 2002 Until 2005 |
| Price | - |
| Tractor type | Row Crop tractor |
| Fuel | diesel |
| Service repair manual | John Deere 8120 Manual |
Dimensions, sizes and tires
| AG front tires | 11.00-24 |
| AG rear tires | 480/80R46 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 19,100 lbs or 8663 kg |
| Length | 209.9 inches [533 cm] |
| Width | - |
| Height | 120.2 inches [305 cm] |
| Wheelbase | 115.7 inches [293 cm] |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | - |
| Front tread size | 60 to 88 inches |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 496 ci or 8.1 L |
| Cylinders | 6 cylinders |
| Engine power | 230 hp or 171.5 kW |
| Engine RPM | 2200 (rpm) |
| Torque | - |
| Torque RPM | - |
| Fuel type | diesel |
| Fuel injection | electronic high-pressure common rail (HPCR) |
| Fuel tank size | 135 gal or 511.0 L |
| Oil capacity | 22.7 qts or 21.5 L |
| Oil change | 250 h |
| Starter motor | - |
| Starter volts | 12 V |
| Parts And Accessories | John Deere 8120 Parts |
| Batteries number | 2 |
| Batteries voltage | 12 V |
| Battries Amps | - |
| Cold Amps | 925 |
| Ground force | negative |
| Charging system | alternator |
| Charging Volts | - |
| Charging Amps | 150 amps |
| Trans system | John Deere PowerShift |
| Trans type | full power shift |
| Trans gears | 16 forward and 4 reverse |
| Clutch system | hydraulic wet disc |
| Wheel drive | 4x2 2WD |
| Final drive | - |
| Steering | hydrostatic power |
| Braking system | hydraulic wet disc |
| Cabin type | Cab standard |
| Differentiel lock | - |
| System | closed center pressure-flow compensated |
| Valves | 5 |
| Pump flow | - |
| SVC flow | 30 gpm or 113.6 lpm |
| Steering flow | - |
| Tank capacity | 37 gal or 140.0 L |
| Hydraulic pressure | 2900 psi or 200.0 bar |
| Max flow | 33.5 gpm or 126.8 lpm |
| Drawbar type | - |
| Claimed power | - |
| Drawbar horsepower | 148.45 hp or 110.7 kW |
| Fuel consumption | 10.2 gal/hour or 38.6 l/hour |
| Pulling power | 22,308 lbs or 10118 kg |
| Claimed power | 170 hp or 126.8 kW |
| Real power | 172.13 hp or 128.4 kW |
| Engine @RPM | 540@1975 (rpm) |
| PTO Clutch | hydraulic wet discs |
| Rear PTO | independent |
| Rear PTO RPM | 1000 (rpm) |
| Front PTO | - |
| Front PTO RPM | - |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | 10.1 gal/hour or 38.2 l/hour |
| Hitch system | - |
| Rear hitch | III,IIIN |
| Rear hitch lift | 12,300 lbs or 5579 kg |
| Front hitch | IIIN |
| Front hitch lift | 11000 lbs or 4989 kg |
John Deere 4020
General Infos| Make | John Deere |
| Model | 4020 |
| Country | United states |
| Production | From 1963 Until 1972 |
| Price | 10,345 USD |
| Tractor type | - |
| Fuel | - |
| Service repair manual | John Deere 4020 Manual |
Dimensions, sizes and tires
| AG front tires | 6.00-16 (row crop) |
| AG rear tires | 15.5-38 (row crop) |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | Shipping: |
| Length | 151 inches 383 cm |
| Width | 89.6 inches 227 cm |
| Height | - |
| Wheelbase | 100.25 inches 254 cm |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | 60 to 91 inches |
| Front tread size | 48.5 to 82.25 inches |
| Turning radius | 8,436 lbs 3826 kg (diesel syncro) |
Horsepower and engin specs
| Engine capacity | - |
| Cylinders | 6 cylinders 12 valves |
| Engine power | - |
| Engine RPM | 2200 (rpm) |
| Torque | - |
| Torque RPM | - |
| Fuel type | - |
| Fuel injection | - |
| Fuel tank size | 34 gal 128.7 L |
| Oil capacity | 8 qts 7.6 L |
| Oil change | - |
| Starter motor | - |
| Starter volts | 12 V |
| Parts And Accessories | John Deere 4020 Parts |
| Batteries number | - |
| Batteries voltage | 12 V |
| Battries Amps | 75 amps |
| Cold Amps | - |
| Ground force | positive |
| Charging system | Motorola alternator |
| Charging Volts | - |
| Charging Amps | 55 amps |
| Trans system | - |
| Trans type | full power shift |
| Trans gears | 8 forward and 4 reverse |
| Clutch system | - |
| Wheel drive | 4x2 2WD |
| Final drive | - |
| Steering | power |
| Braking system | hydraulic wet disc |
| Cabin type | Open operator station |
| Differentiel lock | mechanical rear |
| System | - |
| Valves | - |
| Pump flow | - |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | - |
| Hydraulic pressure | - |
| Max flow | - |
| Drawbar type | - |
| Claimed power | - |
| Drawbar horsepower | - |
| Fuel consumption | - |
| Pulling power | - |
| Claimed power | - |
| Real power | - |
| Engine @RPM | 1000@1900 (rpm) |
| PTO Clutch | - |
| Rear PTO | independent |
| Rear PTO RPM | 540 (rpm) |
| Front PTO | independent |
| Front PTO RPM | 1000 (rpm) |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | - |
| Hitch system | - |
| Rear hitch | II |
| Rear hitch lift | 3790 lbs 1719 kg |
| Front hitch | - |
| Front hitch lift | - |
Related tractor comparison
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John Deere 4020 Nuffield 3/42
Choose another tractor
Useful links and guides ....
- John Deere provided us with the latest version of its 8120 service repair manual
- Find All mechanical and electrical parts and accessories of John Deere 8120 farm-tractor here
- Get your John Deere 4020 manual book version
- Cabine, electrical And mechanical parts for John Deere 4020 farm-tractor here
