Allis Chalmers HD20 VS ATC Terratrac 556 specs comparison

Allis Chalmers HD20 1951 comparison online with competitors

Allis Chalmers HD20

General Infos
Make Allis Chalmers
Model HD20
Country United states
Production From 1951  Until 1954
Price -
Tractor type Agricultural Crawler tractor
Fuel diesel
Service repair manual Allis Chalmers HD20 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 41000 lbs or 18597 kg
Length 191 inches [485 cm]
Width -
Height 95 inches [241 cm]
Wheelbase -
Ground clearance -
Turning radius -
Rear tread size -
Front tread size -
Turning radius -

Horsepower and engin specs
Engine capacity 660 ci or 10.8 L
Cylinders 6 cylinders
Engine power 175 hp or 130.5 kW
Engine RPM 1700 (rpm)
Torque -
Torque RPM -
Fuel type diesel
Fuel injection -
Fuel tank size 120 gal or 454.2 L
Oil capacity -
Oil change -
Starter motor -
Starter volts 24 V
Parts And Accessories Allis Chalmers HD20 Parts
Electrical and battery specs
Batteries number 2
Batteries voltage 12 V
Battries Amps -
Cold Amps -
Ground force -
Charging system -
Charging Volts -
Charging Amps -
Clutch and gearbox specs
Trans system -
Trans type torque converter
Trans gears 2 forward and 1 reverse
Clutch system -
Cabine and mechanical specs
Wheel drive crawler
Final drive -
Steering -
Braking system -
Cabin type Open operator station
Differentiel lock -
Hydraulics specifications
System -
Valves -
Pump flow -
SVC flow -
Steering flow -
Tank capacity -
Hydraulic pressure -
Max flow -
Drawbar specifications
Drawbar type -
Claimed power 117 hp or 87.2 kW
Drawbar horsepower 116.7 hp or 87.0 kW
Fuel consumption -
Pulling power 30,464 lbs or 13818 kg
Power take-off (PTO) specs
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 -
3 point hitch specifiations
Hitch system -
Rear hitch -
Rear hitch lift -
Front hitch -
Front hitch lift -

ATC Terratrac 556 1955 comparison online with competitors

ATC Terratrac 556

General Infos
Make ATC
Model Terratrac 556
Country United states
Production From 1955  Until 1957
Price -
Tractor type Agricultural Crawler tractor
Fuel gasoline
Service repair manual ATC Terratrac 556 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 -
Length -
Width -
Height -
Wheelbase -
Ground clearance -
Turning radius -
Rear tread size -
Front tread size -
Turning radius -

Horsepower and engin specs
Engine capacity 157 ci or 2.6 L
Cylinders 4 cylinders
Engine power -
Engine RPM 2250 (rpm)
Torque -
Torque RPM -
Fuel type gasoline
Fuel injection -
Fuel tank size -
Oil capacity -
Oil change -
Starter motor -
Starter volts -
Parts And Accessories ATC Terratrac 556 Parts
Electrical and battery specs
Batteries number -
Batteries voltage -
Battries Amps -
Cold Amps -
Ground force -
Charging system -
Charging Volts -
Charging Amps -
Clutch and gearbox specs
Trans system Terramatic
Trans type torque converter
Trans gears 3 forward and 1 reverse
Clutch system -
Cabine and mechanical specs
Wheel drive crawler
Final drive -
Steering -
Braking system -
Cabin type Open operator station
Differentiel lock -
Hydraulics specifications
System -
Valves -
Pump flow -
SVC flow -
Steering flow -
Tank capacity -
Hydraulic pressure -
Max flow -
Drawbar specifications
Drawbar type -
Claimed power -
Drawbar horsepower -
Fuel consumption -
Pulling power -
Power take-off (PTO) specs
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 -
3 point hitch specifiations
Hitch system -
Rear hitch -
Rear hitch lift -
Front hitch -
Front hitch lift -

Related tractor comparison


1951 Allis Chalmers HD20 competitors and comparison tool online specs and performance
1957 Farmall F-235 competitors and comparison tool online specs and performance

Allis Chalmers HD20 Farmall F-235

1955 ATC Terratrac 556 competitors and comparison tool online specs and performance
1956 International Harvester B-250 competitors and comparison tool online specs and performance

ATC Terratrac 556 International Harvester B-250

1951 Allis Chalmers HD20 competitors and comparison tool online specs and performance
1956 John Deere 420 competitors and comparison tool online specs and performance

Allis Chalmers HD20 John Deere 420

1951 Allis Chalmers HD20 competitors and comparison tool online specs and performance
1956 John Deere 720 competitors and comparison tool online specs and performance

Allis Chalmers HD20 John Deere 720

1955 ATC Terratrac 556 competitors and comparison tool online specs and performance
1954 ATC Terratrac 300 competitors and comparison tool online specs and performance

ATC Terratrac 556 ATC Terratrac 300

1951 Allis Chalmers HD20 competitors and comparison tool online specs and performance
1955 John Deere 80 competitors and comparison tool online specs and performance

Allis Chalmers HD20 John Deere 80


Choose another tractor









Useful links and guides ....