John Deere 4850 VS Farmall 666 specs comparison

John Deere 4850
General InfosMake | John Deere |
Model | 4850 |
Country | United states |
Production | From 1983 Until 1988 |
Price | 71,000 USD |
Tractor type | Row Crop tractor |
Fuel | diesel |
Service repair manual | John Deere 4850 Manual |
Dimensions, sizes and tires
AG front tires | 11.00-16 |
AG rear tires | 20.8-38 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 17,457 lbs or 7918 kg |
Length | 179.7 inches [456 cm] (2WD) |
Width | 118 inches [299 cm] (standard axle) |
Height | 117.8 inches [299 cm] |
Wheelbase | 118.5 inches [300 cm] (2WD) |
Ground clearance | 14.92 inches [37 cm] |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 466 ci or 7.6 L |
Cylinders | 6 cylinders |
Engine power | - |
Engine RPM | 2200 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 102 gal or 386.1 L |
Oil capacity | 21 qts or 19.9 L |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | John Deere 4850 Parts |
Batteries number | 2 |
Batteries voltage | 6 V |
Battries Amps | - |
Cold Amps | - |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 90 amps |
Trans system | John Deere Power Shift |
Trans type | full power shift |
Trans gears | 15 forward and 4 reverse |
Clutch system | Perma-Clutch wet disc |
Wheel drive | 4x2 2WD |
Final drive | - |
Steering | hydrostatic power |
Braking system | hydraulic wet disc |
Cabin type | Sound-Gard cab standard |
Differentiel lock | - |
System | closed center |
Valves | 2 or 3 |
Pump flow | 29.5 gpm or 111.7 lpm |
SVC flow | - |
Steering flow | - |
Tank capacity | 18.6 gal or 70.4 L |
Hydraulic pressure | 2277 psi or 157.0 bar |
Max flow | - |
Drawbar type | - |
Claimed power | 162 hp or 120.8 kW |
Drawbar horsepower | 164.73 hp or 122.8 kW |
Fuel consumption | 11.0 gal/hour or 41.6 l/hour |
Pulling power | 18,789 lbs or 8522 kg |
Claimed power | 190 hp or 141.7 kW |
Real power | 192.99 hp or 143.9 kW |
Engine @RPM | 1000@2200 (rpm) |
PTO Clutch | - |
Rear PTO | independent |
Rear PTO RPM | 1000 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | 11.0 gal/hour or 41.6 l/hour |
Hitch system | - |
Rear hitch | 3/3N |
Rear hitch lift | 9,599 lbs or 4354 kg |
Front hitch | - |
Front hitch lift | - |

Farmall 666
General InfosMake | Farmall |
Model | 666 |
Country | United states |
Production | From 1972 Until 1976 |
Price | 11,875 USD |
Tractor type | - |
Fuel | diesel |
Service repair manual | Farmall 666 Manual |
Dimensions, sizes and tires
AG front tires | 7.50-16 |
AG rear tires | 15.5-38 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 7053 lbs or 3199 kg |
Length | - |
Width | - |
Height | - |
Wheelbase | 103 inches [261 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 291 ci or 4.8 L |
Cylinders | 6 cylinders |
Engine power | - |
Engine RPM | 2000 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | - |
Oil capacity | - |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | Farmall 666 Parts |
Batteries number | - |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | - |
Ground force | - |
Charging system | - |
Charging Volts | - |
Charging Amps | - |
Trans system | Torque-Amplifier |
Trans type | partial power shift |
Trans gears | 10 forward and 2 reverse |
Clutch system | dry disc |
Wheel drive | 4x2 2WD |
Final drive | - |
Steering | hydrostatic power |
Braking system | dry disc |
Cabin type | Open operator station |
Differentiel lock | - |
System | - |
Valves | - |
Pump flow | - |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | - |
Max flow | - |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | 53.10 hp or 39.6 kW |
Fuel consumption | 5.6 gal/hour or 21.2 l/hour |
Pulling power | 8,310 lbs or 3769 kg |
Claimed power | - |
Real power | 65.41 hp or 48.8 kW |
Engine @RPM | - |
PTO Clutch | - |
Rear PTO | independent |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | 5.3 gal/hour or 20.1 l/hour |
Hitch system | - |
Rear hitch | II |
Rear hitch lift | - |
Front hitch | - |
Front hitch lift | - |
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Useful links and guides ....
- John Deere provided us with the latest version of its 4850 service repair manual
- Find All mechanical and electrical parts and accessories of John Deere 4850 farm-tractor here
- Get your Farmall 666 manual book version
- Cabine, electrical And mechanical parts for Farmall 666 farm-tractor here