Allis Chalmers HD21 VS John Deere 8270R specs comparison

Allis Chalmers HD21
General InfosMake | Allis Chalmers |
Model | HD21 |
Country | United states |
Production | From 1954 Until 1965 |
Price | - |
Tractor type | Agricultural Crawler tractor |
Fuel | diesel |
Service repair manual | Allis Chalmers HD21 Manual |
Dimensions, sizes and tires
AG front tires | tracks |
AG rear tires | tracks |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 45500 lbs or 20638 kg |
Length | 198 inches [502 cm] |
Width | - |
Height | 99 inches [251 cm] |
Wheelbase | - |
Ground clearance | - |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 844 ci or 13.8 L |
Cylinders | 6 cylinders |
Engine power | 225 hp or 167.8 kW |
Engine RPM | 1800 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 135 gal or 511.0 L |
Oil capacity | - |
Oil change | - |
Starter motor | - |
Starter volts | 24 V |
Parts And Accessories | Allis Chalmers HD21 Parts |
Batteries number | 2 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | - |
Ground force | - |
Charging system | - |
Charging Volts | - |
Charging Amps | - |
Trans system | - |
Trans type | torque converter |
Trans gears | 2 forward and 1 reverse |
Clutch system | - |
Wheel drive | crawler |
Final drive | - |
Steering | - |
Braking system | contracting band |
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 | 135.12 hp or 100.8 kW |
Fuel consumption | - |
Pulling power | 40563 lbs or 18399 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 | - |

John Deere 8270R
General InfosMake | John Deere |
Model | 8270R |
Country | United states |
Production | From 2014 |
Price | - |
Tractor type | Row Crop tractor |
Fuel | diesel |
Service repair manual | John Deere 8270R Manual |
Dimensions, sizes and tires
AG front tires | 380/80R38 |
AG rear tires | 480/80R50 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 27553 lbs or 12498 kg |
Length | 245 inches [622 cm] |
Width | 137.3 inches [348 cm] (warning lamps) |
Height | 129.3 inches [328 cm] |
Wheelbase | 121.3 inches [308 cm] (1300) |
Ground clearance | - |
Turning radius | - |
Rear tread size | - |
Front tread size | 62 to 88 inches |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 548 ci or 9.0 L |
Cylinders | 6 cylinders |
Engine power | 297 hp or 221.5 kW |
Engine RPM | 2100 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | electronic high-pressure common rail |
Fuel tank size | 170.4 gal or 645.0 L |
Oil capacity | - |
Oil change | - |
Starter motor | electric |
Starter volts | 12 V |
Parts And Accessories | John Deere 8270R Parts |
Batteries number | 2 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | 925 |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 240 amps |
Trans system | John Deere AutoPowr |
Trans type | infinitely variable transmission (IVT) |
Trans gears | infinite forward and reverse |
Clutch system | - |
Wheel drive | 4x4 MFWD 4WD |
Final drive | inboard planetary |
Steering | hydrostatic power |
Braking system | hydraulic wet disc |
Cabin type | CommandView III cab standard with air-conditioning |
Differentiel lock | hydraulic rear standard |
System | closed-center load sensing pressure flow compensated |
Valves | 4 to 6 |
Pump flow | 60 gpm or 227.1 lpm |
SVC flow | 35 gpm or 132.5 lpm |
Steering flow | - |
Tank capacity | 10.6 gal or 40.1 L |
Hydraulic pressure | - |
Max flow | - |
Drawbar type | Cat 3 |
Claimed power | - |
Drawbar horsepower | 217.51 hp or 162.2 kW |
Fuel consumption | 12.6 gal/hour or 47.7 l/hour |
Pulling power | 24998 lbs or 11339 kg |
Claimed power | 225 hp or 167.8 kW |
Real power | 260.62 hp or 194.3 kW |
Engine @RPM | - |
PTO Clutch | - |
Rear PTO | independent |
Rear PTO RPM | 1000 (rpm) |
Front PTO | optional independent |
Front PTO RPM | 1000 (rpm) |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | 13.5 gal/hour or 51.1 l/hour |
Hitch system | - |
Rear hitch | III/IIIN |
Rear hitch lift | 14000 lbs or 6350 kg |
Front hitch | optional |
Front hitch lift | 11450 lbs or 5193 kg |
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Useful links and guides ....
- Allis Chalmers provided us with the latest version of its HD21 service repair manual
- Find All mechanical and electrical parts and accessories of Allis Chalmers HD21 farm-tractor here
- Get your John Deere 8270R manual book version
- Cabine, electrical And mechanical parts for John Deere 8270R farm-tractor here