John Deere 8335RT VS Allis Chalmers HD21 specs comparison

John Deere 8335RT
General InfosMake | John Deere |
Model | 8335RT |
Country | United states |
Production | From 2011 Until 2013 |
Price | - |
Tractor type | Agricultural Crawler tractor |
Fuel | diesel |
Service repair manual | John Deere 8335RT Manual |
Dimensions, sizes and tires
AG front tires | 16-inch track |
AG rear tires | 16-inch track |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 39,000 lbs or 17690 kg |
Length | 270.9 inches [688 cm] |
Width | 134.6 inches [341 cm] (axle) |
Height | 131.3 inches [333 cm] |
Wheelbase | 99 inches [251 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 548 ci or 9.0 L |
Cylinders | 6 cylinders 24 valves |
Engine power | 369 hp or 275.2 kW |
Engine RPM | 2100 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | - |
Oil capacity | 26.4 qts or 25.0 L |
Oil change | 250 h |
Starter motor | electric |
Starter volts | 12 V |
Parts And Accessories | John Deere 8335RT Parts |
Batteries number | 2 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | 925 |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 200 amps |
Trans system | John Deere AutoPowr |
Trans type | infinitely variable transmission (IVT) |
Trans gears | infinite forward and reverse |
Clutch system | - |
Wheel drive | crawler |
Final drive | - |
Steering | electro-hydraulic power |
Braking system | - |
Cabin type | CommandView II cab standard with heat and air-conditioning |
Differentiel lock | - |
System | closed center pressure-flow compensated |
Valves | 3 to 5 |
Pump flow | 35 gpm or 132.5 lpm |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | 2900 psi or 200.0 bar |
Max flow | 60 gpm or 227.1 lpm |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | 250.61 hp or 186.9 kW |
Fuel consumption | 16.0 gal/hour or 60.6 l/hour |
Pulling power | 34802 lbs or 15786 kg |
Claimed power | 268 hp or 199.8 kW |
Real power | 315.36 hp or 235.2 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 | 17.1 gal/hour or 64.7 l/hour |
Hitch system | - |
Rear hitch | 4N/3 |
Rear hitch lift | 19,300 lbs or 8754 kg |
Front hitch | - |
Front hitch lift | - |

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 | - |
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Useful links and guides ....
- John Deere provided us with the latest version of its 8335RT service repair manual
- Find All mechanical and electrical parts and accessories of John Deere 8335RT farm-tractor here
- Get your Allis Chalmers HD21 manual book version
- Cabine, electrical And mechanical parts for Allis Chalmers HD21 farm-tractor here