John Deere 6125R VS John Deere 8420 specs comparison

John Deere 6125R
General InfosMake | John Deere |
Model | 6125R |
Country | United states |
Production | From 2012 Until 2014 |
Price | 125,218 USD |
Tractor type | - |
Fuel | - |
Service repair manual | John Deere 6125R Manual |
Dimensions, sizes and tires
AG front tires | 12.4R24 |
AG rear tires | 16.9R3 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | - |
Length | 178.8 inches 454 cm |
Width | 100.4 inches 255 cm |
Height | 110.1 inches 279 cm |
Wheelbase | 101.6 inches 258 cm |
Ground clearance | 19.7 inches 50 cm |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | - |
Cylinders | 4 cylinders 16 valves |
Engine power | 125 hp 93.2 kW |
Engine RPM | 2100 (rpm) |
Torque | 432 lb-ft 585.8 Nm | Torque RPM | 1600 (rpm) |
Fuel type | - |
Fuel injection | high pressure common rail |
Fuel tank size | 58 gal 219.5 L |
Oil capacity | - |
Oil change | - |
Starter motor | electric |
Starter volts | 12 V |
Parts And Accessories | John Deere 6125R Parts |
Batteries number | 1 |
Batteries voltage | 12 V |
Battries Amps | 154 amps |
Cold Amps | - |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 120 amps |
Trans system | - |
Trans type | infinitely variable transmission |
Trans gears | infinite forward and reverse |
Clutch system | PermaClutch II hydraulic wet disc |
Wheel drive | 4x2 2WD |
Final drive | - |
Steering | hydrostatic power |
Braking system | hydraulic wet disc |
Cabin type | ComfortView cab standard with air-conditioning |
Differentiel lock | hydraulic rear lock |
System | - |
Valves | - |
Pump flow | - |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | - |
Max flow | - |
Drawbar type | Category 2 swinging drawbar with hammerstrap |
Claimed power | - |
Drawbar horsepower | - |
Fuel consumption | - |
Pulling power | - |
Claimed power | 101 hp 75.3 kW |
Real power | - |
Engine @RPM | - |
PTO Clutch | hydraulic wet disc |
Rear PTO | independent |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | - |
Hitch system | electronic lower-link draft sensing |
Rear hitch | 2/3N |
Rear hitch lift | 6,475 lbs 2937 kg |
Front hitch | - |
Front hitch lift | - |

John Deere 8420
General InfosMake | John Deere |
Model | 8420 |
Country | United states |
Production | From 2002 Until 2005 |
Price | - |
Tractor type | Row Crop tractor |
Fuel | diesel |
Service repair manual | John Deere 8420 Manual |
Dimensions, sizes and tires
AG front tires | 16.9R30 |
AG rear tires | 18.4R46 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 21,650 lbs or 9820 kg |
Length | 211.9 inches [538 cm] |
Width | - |
Height | 122.2 inches [310 cm] |
Wheelbase | 118.9 inches [302 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | - |
Front tread size | 60 to 80 inches |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 496 ci or 8.1 L |
Cylinders | 6 cylinders |
Engine power | 314 hp or 234.1 kW |
Engine RPM | 2200 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | electronic high-pressure common rail (HPCR) |
Fuel tank size | 160 gal or 605.6 L |
Oil capacity | 28.5 qts or 27.0 L |
Oil change | 250 h |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | John Deere 8420 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 | 4x4 MFWD 4WD |
Final drive | - |
Steering | hydrostatic power |
Braking system | hydraulic wet disc |
Cabin type | Cab standard |
Differentiel lock | - |
System | closed center pressure-flow compensated |
Valves | 4 to 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 | 207.49 hp or 154.7 kW |
Fuel consumption | 13.6 gal/hour or 51.5 l/hour |
Pulling power | 29,964 lbs or 13591 kg |
Claimed power | 235 hp or 175.2 kW |
Real power | 235.45 hp or 175.6 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 | 13.7 gal/hour or 51.9 l/hour |
Hitch system | - |
Rear hitch | III/IIIN |
Rear hitch lift | 15180 lbs or 6885 kg |
Front hitch | IIIN |
Front hitch lift | 11000 lbs or 4989 kg |
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Useful links and guides ....
- John Deere provided us with the latest version of its 6125R service repair manual
- Find All mechanical and electrical parts and accessories of John Deere 6125R farm-tractor here
- Get your John Deere 8420 manual book version
- Cabine, electrical And mechanical parts for John Deere 8420 farm-tractor here