Allis Chalmers HD20 VS Caterpillar RD4 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 -

Caterpillar RD4 1935 comparison online with competitors

Caterpillar RD4

General Infos
Make Caterpillar
Model RD4
Country United states
Production From 1935  Until 1940
Price -
Tractor type Agricultural Crawler tractor
Fuel diesel
Service repair manual Caterpillar RD4 Manual

Dimensions, sizes and tires
AG front tires 44, 60-inch tracks
AG rear tires 44, 60-inch 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 312.1 ci or 5.1 L
Cylinders 4 cylinders
Engine power -
Engine RPM 1400 (rpm)
Torque -
Torque RPM -
Fuel type diesel
Fuel injection -
Fuel tank size -
Oil capacity -
Oil change -
Starter motor -
Starter volts -
Parts And Accessories Caterpillar RD4 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 -
Trans type gear
Trans gears 5 forward and 1 reverse
Clutch system dry disc
Cabine and mechanical specs
Wheel drive crawler
Final drive -
Steering -
Braking system -
Cabin type -
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 35.06 hp or 26.1 kW
Fuel consumption -
Pulling power 7852 lbs or 3561 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 -

Related tractor comparison


1935 Caterpillar RD4 competitors and comparison tool online specs and performance
1937 McCormick-Deering TD-35 competitors and comparison tool online specs and performance

Caterpillar RD4 McCormick-Deering TD-35

1951 Allis Chalmers HD20 competitors and comparison tool online specs and performance
1937 Allis Chalmers S competitors and comparison tool online specs and performance

Allis Chalmers HD20 Allis Chalmers S

1951 Allis Chalmers HD20 competitors and comparison tool online specs and performance
1935 Lanz Bulldog D9531 competitors and comparison tool online specs and performance

Allis Chalmers HD20 Lanz Bulldog D9531

1951 Allis Chalmers HD20 competitors and comparison tool online specs and performance
1935 Lanz Bulldog D9500 competitors and comparison tool online specs and performance

Allis Chalmers HD20 Lanz Bulldog D9500

1935 Caterpillar RD4 competitors and comparison tool online specs and performance
1934 John Deere A competitors and comparison tool online specs and performance

Caterpillar RD4 John Deere A

1951 Allis Chalmers HD20 competitors and comparison tool online specs and performance
1936 Huber L competitors and comparison tool online specs and performance

Allis Chalmers HD20 Huber L


Choose another tractor









Useful links and guides ....