John Deere 2840 VS Allis Chalmers D21 Series I specs comparison
John Deere 2840
General Infos| Make | John Deere |
| Model | 2840 |
| Country | United states |
| Production | From 1977 Until 1979 |
| Price | - |
| Tractor type | Utility tractor |
| Fuel | diesel |
| Service repair manual | John Deere 2840 Manual |
Dimensions, sizes and tires
| AG front tires | 7.50-18 |
| AG rear tires | 18.4-34 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 8700 lbs or 3946 kg |
| Length | 160 inches [406 cm] |
| Width | 90 inches [228 cm] |
| Height | - |
| Wheelbase | 97 inches [246 cm] |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | 61 to 90 inches |
| Front tread size | 57.82.4 to inches |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 329 ci or 5.4 L |
| Cylinders | 6 cylinders |
| Engine power | - |
| Engine RPM | 2500 (rpm) |
| Torque | - | Torque RPM | - |
| Fuel type | diesel |
| Fuel injection | - |
| Fuel tank size | 28 gal or 106.0 L |
| Oil capacity | - |
| Oil change | - |
| Starter motor | - |
| Starter volts | 12 V |
| Parts And Accessories | John Deere 2840 Parts |
| Batteries number | 2 |
| Batteries voltage | 12 V |
| Battries Amps | - |
| Cold Amps | - |
| Ground force | negative |
| Charging system | alternator |
| Charging Volts | - |
| Charging Amps | - |
| Trans system | sliding gear |
| Trans type | two-speed power shift |
| Trans gears | 6 forward and 3 reverse |
| Clutch system | dry disc |
| Wheel drive | 4x2 2WD |
| Final drive | planetary |
| Steering | power assist |
| Braking system | differential hydraulic wet disc |
| Cabin type | Open operator station |
| Differentiel lock | mechanical rear |
| System | closed center |
| Valves | 2 |
| Pump flow | 23 gpm or 87.1 lpm |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | 12.9 gal or 48.8 L |
| Hydraulic pressure | - |
| Max flow | - |
| Drawbar type | - |
| Claimed power | - |
| Drawbar horsepower | 64.86 hp or 48.4 kW |
| Fuel consumption | 5.2 gal/hour or 19.7 l/hour |
| Pulling power | 8,386 lbs or 3803 kg |
| Claimed power | - |
| Real power | 76.27 hp or 56.9 kW |
| Engine @RPM | - |
| PTO Clutch | hydraulic 300mm disc |
| Rear PTO | independent |
| Rear PTO RPM | 540 (rpm) |
| Front PTO | - |
| Front PTO RPM | - |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | 4.8 gal/hour or 18.2 l/hour |
| Hitch system | draft sensing |
| Rear hitch | II |
| Rear hitch lift | - |
| Front hitch | - |
| Front hitch lift | - |
Allis Chalmers D21 Series I
General Infos| Make | Allis Chalmers |
| Model | D21 Series I |
| Country | United states |
| Production | From 1963 Until 1969 |
| Price | - |
| Tractor type | Row Crop tractor |
| Fuel | diesel |
| Service repair manual | Allis Chalmers D21 Series I Manual |
Dimensions, sizes and tires
| AG front tires | 11.00x16 |
| AG rear tires | 24.5x32 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 9500 lbs or 4309 kg |
| Length | 160.6 inches [407 cm] |
| Width | 91.6 inches [232 cm] |
| Height | - |
| Wheelbase | 96.1 inches [244 cm] |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | - |
| Front tread size | - |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 426 ci or 7.0 L |
| Cylinders | 6 cylinders |
| Engine power | - |
| Engine RPM | 2200 (rpm) |
| Torque | - | Torque RPM | - |
| Fuel type | diesel |
| Fuel injection | - |
| Fuel tank size | 52 gal or 196.8 L |
| Oil capacity | 12 qts or 11.4 L |
| Oil change | - |
| Starter motor | - |
| Starter volts | - |
| Parts And Accessories | Allis Chalmers D21 Series I Parts |
| Batteries number | 2 |
| Batteries voltage | 12 V |
| Battries Amps | 95 amps |
| Cold Amps | - |
| Ground force | negative |
| Charging system | Delco-Remy generator |
| Charging Volts | - |
| Charging Amps | 32 amps |
| Trans system | Power Director |
| Trans type | sliding gear |
| Trans gears | 8 forward and 2 reverse |
| Clutch system | dry disc |
| Wheel drive | 4x2 2WD |
| Final drive | - |
| Steering | power |
| Braking system | band actuated 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 | 93 hp or 69.4 kW |
| Drawbar horsepower | 93.09 hp or 69.4 kW |
| Fuel consumption | 7.1 gal/hour or 26.9 l/hour |
| Pulling power | 14,840 lbs or 6731 kg |
| Claimed power | 103 hp or 76.8 kW |
| Real power | 103.06 hp or 76.9 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 | 7.1 gal/hour or 26.9 l/hour |
| Hitch system | - |
| Rear hitch | III/II |
| Rear hitch lift | - |
| Front hitch | - |
| Front hitch lift | - |
Related tractor comparison
John Deere 2840 Renault N70
John Deere 2840 David Brown 990 Implematic
Allis Chalmers D21 Series I Oliver 500
John Deere 2840 Oliver 1600 Series A
John Deere 2840 Zetor 50 Super
Allis Chalmers D21 Series I Massey Ferguson 35
Choose another tractor
Useful links and guides ....
- John Deere provided us with the latest version of its 2840 service repair manual
- Find All mechanical and electrical parts and accessories of John Deere 2840 farm-tractor here
- Get your Allis Chalmers D21 Series I manual book version
- Cabine, electrical And mechanical parts for Allis Chalmers D21 Series I farm-tractor here
