John Deere 4840 VS Allis Chalmers U specs comparison
John Deere 4840
General Infos| Make | John Deere |
| Model | 4840 |
| Country | United states |
| Production | From 1978 Until 1982 |
| Price | - |
| Tractor type | Row Crop tractor |
| Fuel | diesel |
| Service repair manual | John Deere 4840 Manual |
Dimensions, sizes and tires
| AG front tires | 10.00-16 |
| AG rear tires | 24.5-32 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 14,900 lbs or 6758 kg |
| Length | 177 inches [449 cm] |
| Width | 96 inches [243 cm] |
| Height | 117 inches [297 cm] |
| Wheelbase | 118.5 inches [300 cm] |
| Ground clearance | - |
| Turning radius | 14.7 feet [4.5 m] |
| Rear tread size | 60 to 131.5 inches |
| Front tread size | 58 to 100 inches |
| 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 | 103 gal or 389.9 L |
| Oil capacity | - |
| Oil change | - |
| Starter motor | - |
| Starter volts | 12 V |
| Parts And Accessories | John Deere 4840 Parts |
| Batteries number | 2 |
| Batteries voltage | 6 V |
| Battries Amps | - |
| Cold Amps | - |
| Ground force | negative |
| Charging system | alternator |
| Charging Volts | - |
| Charging Amps | - |
| Trans system | John Deere PowerShift |
| Trans type | full power shift |
| Trans gears | 8 forward and 4 reverse |
| Clutch system | - |
| Wheel drive | 4x2 2WD |
| Final drive | - |
| Steering | power |
| Braking system | differential hydraulic wet disc |
| Cabin type | Sound-Gard cab |
| Differentiel lock | pedal-actuated hydraulic |
| System | closed center |
| Valves | 2 or 3 |
| Pump flow | 23 gpm or 87.1 lpm |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | 16.5 gal or 62.5 L |
| Hydraulic pressure | - |
| Max flow | - |
| Drawbar type | - |
| Claimed power | 157 hp or 117.1 kW |
| Drawbar horsepower | 151.21 hp or 112.8 kW |
| Fuel consumption | 11.3 gal/hour or 42.8 l/hour |
| Pulling power | 17,307 lbs or 7850 kg |
| Claimed power | 180 hp or 134.2 kW |
| Real power | 181.63 hp or 135.4 kW |
| Engine @RPM | - |
| PTO Clutch | - |
| Rear PTO | independent |
| Rear PTO RPM | 1000 (rpm) |
| Front PTO | - |
| Front PTO RPM | - |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | 11.5 gal/hour or 43.5 l/hour |
| Hitch system | - |
| Rear hitch | III,IIIN |
| Rear hitch lift | 8,295 lbs or 3762 kg |
| Front hitch | - |
| Front hitch lift | - |
Allis Chalmers U
General Infos| Make | Allis Chalmers |
| Model | U |
| Country | United states |
| Production | From 1929 Until 1952 |
| Price | - |
| Tractor type | Standard tread tractor |
| Fuel | gasoline |
| Service repair manual | Allis Chalmers U Manual |
Dimensions, sizes and tires
| AG front tires | 6.00x16 |
| AG rear tires | 12.75x24 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 4,600 lbs or 2086 kg |
| Length | 118.5 inches [300 cm] |
| Width | 63.1 inches [160 cm] |
| Height | 53.5 inches [135 cm] |
| Wheelbase | - |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | - |
| Front tread size | - |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 318 ci or 5.2 L |
| Cylinders | 4 cylinders |
| Engine power | - |
| Engine RPM | 1200 (rpm) |
| Torque | - | Torque RPM | - |
| Fuel type | gasoline |
| Fuel injection | - |
| Fuel tank size | 24 gal or 90.8 L |
| Oil capacity | - |
| Oil change | - |
| Starter motor | - |
| Starter volts | - |
| Parts And Accessories | Allis Chalmers U Parts |
| Batteries number | - |
| Batteries voltage | - |
| Battries Amps | - |
| Cold Amps | - |
| Ground force | - |
| Charging system | - |
| Charging Volts | - |
| Charging Amps | - |
| Trans system | - |
| Trans type | - |
| Trans gears | 4 forward and 1 reverse |
| Clutch system | - |
| Wheel drive | 4x2 2WD |
| Final drive | - |
| Steering | - |
| Braking system | - |
| Cabin type | - |
| Differentiel lock | - |
| System | - |
| Valves | - |
| Pump flow | - |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | - |
| Hydraulic pressure | - |
| Max flow | - |
| Drawbar type | - |
| Claimed power | 20 hp or 14.9 kW |
| Drawbar horsepower | 30.37 hp or 22.6 kW |
| Fuel consumption | - |
| Pulling power | 2,452 lbs or 1112 kg |
| Claimed power | - |
| Real power | - |
| Engine @RPM | - |
| PTO Clutch | - |
| Rear PTO | - |
| Rear PTO RPM | - |
| Front PTO | - |
| Front PTO RPM | - |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | - |
| Hitch system | - |
| Rear hitch | - |
| Rear hitch lift | - |
| Front hitch | - |
| Front hitch lift | - |
Related tractor comparison
John Deere 4840 Huber 21-39 Super Four
Allis Chalmers U Huber 20-40 Super Four
John Deere 4840 Hart-Parr Row Crop 18-27
Allis Chalmers U Allis Chalmers UC
Allis Chalmers U Caterpillar Twenty-Five
Allis Chalmers U McCormick-Deering 22-36
Choose another tractor
Useful links and guides ....
- John Deere provided us with the latest version of its 4840 service repair manual
- Find All mechanical and electrical parts and accessories of John Deere 4840 farm-tractor here
- Get your Allis Chalmers U manual book version
- Cabine, electrical And mechanical parts for Allis Chalmers U farm-tractor here
