Allis Chalmers HD21 VS CaseIH Farmall 55A 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 | - |

CaseIH Farmall 55A
General InfosMake | CaseIH |
Model | Farmall 55A |
Country | United states |
Production | From 2010 |
Price | - |
Tractor type | Utility tractor |
Fuel | diesel |
Service repair manual | CaseIH Farmall 55A Manual |
Dimensions, sizes and tires
AG front tires | 6x16 |
AG rear tires | 14.9x28 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 3,770 lbs or 1710 kg |
Length | 133.5 inches [339 cm] |
Width | 66.1 inches [167 cm] |
Height | 93.9 inches [238 cm] |
Wheelbase | 87 inches [220 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | 56.5 to 72.5 inches |
Front tread size | 57.1 to 72.6 inches |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 135 ci or 2.2 L |
Cylinders | 4 cylinders |
Engine power | 55 hp or 41.0 kW |
Engine RPM | 2700 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 13.5 gal or 51.1 L |
Oil capacity | - |
Oil change | - |
Starter motor | electric |
Starter volts | 12 V |
Parts And Accessories | CaseIH Farmall 55A Parts |
Batteries number | 1 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | 800 |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 55 amps |
Trans system | - |
Trans type | synchronized shuttle |
Trans gears | 8 forward and reverse |
Clutch system | 11-inch dry disc |
Wheel drive | 4x2 2WD |
Final drive | - |
Steering | hydrostatic power |
Braking system | differential mechanical wet disc |
Cabin type | Two-post foldable ROPS |
Differentiel lock | mechanical rear differential lock with foot pedal |
System | open center fixed displacement gear pump |
Valves | 1 or 2 |
Pump flow | 11.6 gpm or 43.9 lpm |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | - |
Max flow | 16.9 gpm or 64.0 lpm |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | - |
Fuel consumption | - |
Pulling power | - |
Claimed power | 47 hp or 35.0 kW |
Real power | 48.94 hp or 36.5 kW |
Engine @RPM | - |
PTO Clutch | - |
Rear PTO | independent |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | 3.4 gal/hour or 12.9 l/hour |
Hitch system | position control with mechanical draft sensing |
Rear hitch | 2/1 |
Rear hitch lift | 2,580 lbs or 1170 kg |
Front hitch | - |
Front hitch lift | - |
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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 CaseIH Farmall 55A manual book version
- Cabine, electrical And mechanical parts for CaseIH Farmall 55A farm-tractor here