Deutz-Fahr DX 3.90 VS John Deere 7720 specs comparison
Deutz-Fahr DX 3.90
General Infos| Make | Deutz-Fahr |
| Model | DX 3.90 |
| Country | Germany |
| Production | From 1985 Until 1989 |
| Price | - |
| Tractor type | Utility tractor |
| Fuel | diesel |
| Service repair manual | Deutz-Fahr DX 3.90 Manual |
Dimensions, sizes and tires
| AG front tires | 10.00x16 |
| AG rear tires | 18.4x30 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 6922 lbs or 3139 kg |
| Length | 157.9 inches [401 cm] |
| Width | 82.3 inches [209 cm] |
| Height | 101.3 inches [257 cm] |
| Wheelbase | 94 inches [238 cm] |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | 59 to 78.8 inches |
| Front tread size | - |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 249.33 ci or 4.1 L |
| Cylinders | 4 cylinders |
| Engine power | 75 hp or 55.9 kW |
| Engine RPM | 2350 (rpm) |
| Torque | - | Torque RPM | - |
| Fuel type | diesel |
| Fuel injection | - |
| Fuel tank size | 23 gal or 87.1 L |
| Oil capacity | 10.5 qts or 9.9 L |
| Oil change | - |
| Starter motor | - |
| Starter volts | - |
| Parts And Accessories | Deutz-Fahr DX 3.90 Parts |
| Batteries number | - |
| Batteries voltage | - |
| Battries Amps | - |
| Cold Amps | - |
| Ground force | - |
| Charging system | - |
| Charging Volts | - |
| Charging Amps | - |
| Trans system | Dual-Split |
| Trans type | two-speed power shift |
| Trans gears | 24 forward and 8 reverse |
| Clutch system | dry disc |
| Wheel drive | 4x2 2WD |
| Final drive | - |
| Steering | power |
| Braking system | hydraulic drum |
| Cabin type | Four-post ROPS with canopy |
| Differentiel lock | mechanical rear |
| System | open center |
| Valves | 1 to 3 |
| Pump flow | 17.7 gpm or 67.0 lpm |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | 4 gal or 15.1 L |
| Hydraulic pressure | 2538 psi or 175.0 bar |
| Max flow | - |
| Drawbar type | - |
| Claimed power | - |
| Drawbar horsepower | - |
| Fuel consumption | - |
| Pulling power | - |
| Claimed power | - |
| Real power | - |
| Engine @RPM | - |
| PTO Clutch | dry disc |
| 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 | position and draft control |
| Rear hitch | II |
| Rear hitch lift | 7275 lbs or 3299 kg |
| Front hitch | II |
| Front hitch lift | - |
John Deere 7720
General Infos| Make | John Deere |
| Model | 7720 |
| Country | United states |
| Production | From 2003 Until 2006 |
| Price | - |
| Tractor type | Row Crop tractor |
| Fuel | diesel |
| Service repair manual | John Deere 7720 Manual |
Dimensions, sizes and tires
| AG front tires | 11.00-16 |
| AG rear tires | 480/80R42 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 17,309 lbs or 7851 kg |
| Length | 212.2 inches [538 cm] |
| Width | 96 inches [243 cm] |
| Height | 125.4 inches [318 cm] |
| Wheelbase | 112.6 inches [286 cm] |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | - |
| Front tread size | - |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 414 ci or 6.8 L |
| Cylinders | 6 cylinders |
| Engine power | 188 hp or 140.2 kW |
| Engine RPM | 2100 (rpm) |
| Torque | 607.8 lb-ft or 824.2 Nm | Torque RPM | 1400 (rpm) |
| Fuel type | diesel |
| Fuel injection | high-pressure common rail |
| Fuel tank size | 103.5 gal or 391.7 L |
| Oil capacity | 27.5 qts or 26.0 L |
| Oil change | - |
| Starter motor | - |
| Starter volts | 12 V |
| Parts And Accessories | John Deere 7720 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 | AutoPowr IVT |
| Trans type | infinitely variable transmission |
| Trans gears | infinite forward and reverse |
| Clutch system | - |
| Wheel drive | 4x4 MFWD 4WD |
| Final drive | - |
| Steering | power |
| Braking system | hydraulic wet disc |
| Cabin type | Cab standard |
| Differentiel lock | - |
| System | - |
| Valves | 7 |
| Pump flow | 32 gpm or 121.1 lpm |
| SVC flow | 30 gpm or 113.6 lpm |
| Steering flow | - |
| Tank capacity | 28.5 gal or 107.9 L |
| Hydraulic pressure | 3046 psi or 210.0 bar |
| Max flow | - |
| Drawbar type | - |
| Claimed power | - |
| Drawbar horsepower | - |
| Fuel consumption | - |
| Pulling power | - |
| Claimed power | 140 hp or 104.4 kW |
| Real power | - |
| Engine @RPM | 540@1950 (rpm) |
| PTO Clutch | hydraulic wet discs |
| Rear PTO | independent |
| Rear PTO RPM | 540 (rpm) |
| Front PTO | independent (optional) |
| Front PTO RPM | 540 (rpm) |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | - |
| Hitch system | - |
| Rear hitch | 3/3N |
| Rear hitch lift | 10,050 lbs or 4558 kg |
| Front hitch | optional |
| Front hitch lift | - |
Related tractor comparison
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Useful links and guides ....
- Deutz-Fahr provided us with the latest version of its DX 3.90 service repair manual
- Find All mechanical and electrical parts and accessories of Deutz-Fahr DX 3.90 farm-tractor here
- Get your John Deere 7720 manual book version
- Cabine, electrical And mechanical parts for John Deere 7720 farm-tractor here
