John Deere 4400 VS Allis Chalmers HD21 specs comparison

John Deere 4400
General InfosMake | John Deere |
Model | 4400 |
Country | United states |
Production | From 1998 Until 2001 |
Price | - |
Tractor type | Compact Utility tractor |
Fuel | diesel |
Service repair manual | John Deere 4400 Manual |
Dimensions, sizes and tires
AG front tires | 7.00x14 |
AG rear tires | 11.2x24 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 2,900 lbs or 1315 kg |
Length | 117 inches [297 cm] |
Width | 50 inches [127 cm] |
Height | 84 inches [213 cm] (fixed) |
Wheelbase | 68 inches [172 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 100.2 ci or 1.6 L |
Cylinders | 3 cylinders |
Engine power | 33.7 hp or 25.1 kW |
Engine RPM | 2700 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | direct injection |
Fuel tank size | 10 gal or 37.9 L |
Oil capacity | 4.5 qts or 4.3 L |
Oil change | 200 h |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | John Deere 4400 Parts |
Batteries number | 1 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | 500 |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 40 amps |
Trans system | SyncReverser |
Trans type | hydrostatic |
Trans gears | infinite (3-range) forward and reverse |
Clutch system | wet discs, two clutch packs with nine four-inch discs each |
Wheel drive | 4x4 MFWD 4WD |
Final drive | - |
Steering | power |
Braking system | differential wet disc |
Cabin type | Two-post ROPS |
Differentiel lock | mechanical |
System | open center |
Valves | 2 |
Pump flow | 8.3 gpm or 31.4 lpm |
SVC flow | - |
Steering flow | 5 gpm or 18.9 lpm |
Tank capacity | 6.3 gal or 23.8 L |
Hydraulic pressure | 2500 psi or 172.4 bar |
Max flow | 13.3 gpm or 50.3 lpm |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | - |
Fuel consumption | - |
Pulling power | - |
Claimed power | 28.5 hp or 21.3 kW |
Real power | - |
Engine @RPM | 2100@2700 (rpm) |
PTO Clutch | wet disc |
Rear PTO | independent |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | optional |
Mid PTO RPM | 2100 (rpm) |
Fuel consumption | - |
Hitch system | - |
Rear hitch | I |
Rear hitch lift | 2,200 lbs or 997 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 4400 service repair manual
- Find All mechanical and electrical parts and accessories of John Deere 4400 farm-tractor here
- Get your Allis Chalmers HD21 manual book version
- Cabine, electrical And mechanical parts for Allis Chalmers HD21 farm-tractor here