Caterpillar R4 VS Hart-Parr 28-50 specs comparison

Caterpillar R4 1938 comparison online with competitors

Caterpillar R4

General Infos
Make Caterpillar
Model R4
Country United states
Production From 1938  Until 1944
Price -
Tractor type Agricultural Crawler tractor
Fuel gasoline
Service repair manual Caterpillar R4 Manual

Dimensions, sizes and tires
AG front tires 44-inch tracks
AG rear tires 44-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 461 ci or 7.6 L
Cylinders 4 cylinders
Engine power -
Engine RPM 1400 (rpm)
Torque -
Torque RPM -
Fuel type gasoline
Fuel injection -
Fuel tank size -
Oil capacity -
Oil change -
Starter motor -
Starter volts -
Parts And Accessories Caterpillar R4 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 -
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 30.88 hp or 23.0 kW
Fuel consumption -
Pulling power 6120 lbs or 2776 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 -

Hart-Parr 28-50 1927 comparison online with competitors

Hart-Parr 28-50

General Infos
Make Hart-Parr
Model 28-50
Country United states
Production From 1927  Until 1930
Price 2085  USD
Tractor type -
Fuel gasoline
Service repair manual Hart-Parr 28-50 Manual

Dimensions, sizes and tires
AG front tires 28x7 steel
AG rear tires 51x14 steel
Lawn front tires -
Lawn rear tires -
Indus front tires -
Indus rear tires -
Weight 8600 lbs or 3900 kg
Length -
Width -
Height -
Wheelbase -
Ground clearance -
Turning radius -
Rear tread size -
Front tread size -
Turning radius -

Horsepower and engin specs
Engine capacity 675.1 ci or 11.1 L
Cylinders 4 cylinders
Engine power -
Engine RPM 850 (rpm)
Torque -
Torque RPM -
Fuel type gasoline
Fuel injection -
Fuel tank size -
Oil capacity -
Oil change -
Starter motor -
Starter volts -
Parts And Accessories Hart-Parr 28-50 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 gear
Trans type -
Trans gears 2 forward and 1 reverse
Clutch system -
Cabine and mechanical specs
Wheel drive -
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 28 hp or 20.9 kW
Drawbar horsepower 46 hp or 34.3 kW
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 -

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