Allis Chalmers D21 Series I VS Zetor Forterra 8641 specs comparison

Allis Chalmers D21 Series I 1963 comparison online with competitors

Allis Chalmers D21 Series I

General Infos
Make Allis Chalmers
Model D21 Series I
Country United states
Production From 1963  Until 1969
Price -
Tractor type Row Crop tractor
Fuel diesel
Service repair manual Allis Chalmers D21 Series I Manual

Dimensions, sizes and tires
AG front tires 11.00x16
AG rear tires 24.5x32
Lawn front tires -
Lawn rear tires -
Indus front tires -
Indus rear tires -
Weight 9500 lbs or 4309 kg
Length 160.6 inches [407 cm]
Width 91.6 inches [232 cm]
Height -
Wheelbase 96.1 inches [244 cm]
Ground clearance -
Turning radius -
Rear tread size -
Front tread size -
Turning radius -

Horsepower and engin specs
Engine capacity 426 ci or 7.0 L
Cylinders 6 cylinders
Engine power -
Engine RPM 2200 (rpm)
Torque -
Torque RPM -
Fuel type diesel
Fuel injection -
Fuel tank size 52 gal or 196.8 L
Oil capacity 12 qts or 11.4 L
Oil change -
Starter motor -
Starter volts -
Parts And Accessories Allis Chalmers D21 Series I Parts
Electrical and battery specs
Batteries number 2
Batteries voltage 12 V
Battries Amps 95 amps
Cold Amps -
Ground force negative
Charging system Delco-Remy generator
Charging Volts -
Charging Amps 32 amps
Clutch and gearbox specs
Trans system Power Director
Trans type sliding gear
Trans gears 8 forward and 2 reverse
Clutch system dry disc
Cabine and mechanical specs
Wheel drive 4x2 2WD
Final drive -
Steering power
Braking system band actuated disc
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 93 hp or 69.4 kW
Drawbar horsepower 93.09 hp or 69.4 kW
Fuel consumption 7.1 gal/hour or 26.9 l/hour
Pulling power 14,840 lbs or 6731 kg
Power take-off (PTO) specs
Claimed power 103 hp or 76.8 kW
Real power 103.06 hp or 76.9 kW
Engine @RPM -
PTO Clutch -
Rear PTO independent
Rear PTO RPM 1000 (rpm)
Front PTO -
Front PTO RPM -
Mid PTO -
Mid PTO RPM -
Fuel consumption 7.1 gal/hour or 26.9 l/hour
3 point hitch specifiations
Hitch system -
Rear hitch III/II
Rear hitch lift -
Front hitch -
Front hitch lift -

Zetor Forterra 8641 1999 comparison online with competitors

Zetor Forterra 8641

General Infos
Make Zetor
Model Forterra 8641
Country Czech republic
Production From 1999  Until 2007
Price -
Tractor type -
Fuel diesel
Service repair manual Zetor Forterra 8641 Manual

Dimensions, sizes and tires
AG front tires 13.6-24
AG rear tires 18.4-34
Lawn front tires -
Lawn rear tires -
Indus front tires -
Indus rear tires -
Weight 8708 lbs or 3949 kg
Length 172 inches [436 cm]
Width -
Height 106.7 inches [271 cm]
Wheelbase 93.7 inches [237 cm]
Ground clearance -
Turning radius -
Rear tread size -
Front tread size -
Turning radius -

Horsepower and engin specs
Engine capacity 253.6 ci or 4.2 L
Cylinders 4 cylinders
Engine power 85 hp or 63.4 kW
Engine RPM 2200 (rpm)
Torque 219.1 lb-ft or 297.1 Nm
Torque RPM 1450 (rpm)
Fuel type diesel
Fuel injection -
Fuel tank size 47.6 gal or 180.2 L
Oil capacity -
Oil change -
Starter motor electric
Starter volts 12 V
Parts And Accessories Zetor Forterra 8641 Parts
Electrical and battery specs
Batteries number -
Batteries voltage 12 V
Battries Amps -
Cold Amps -
Ground force negative
Charging system -
Charging Volts -
Charging Amps -
Clutch and gearbox specs
Trans system -
Trans type synchronized
Trans gears 24 forward and 18 reverse
Clutch system hydraulic dry disc
Cabine and mechanical specs
Wheel drive 4x4 MFWD 4WD
Final drive -
Steering power
Braking system wet disc
Cabin type Cab standard with available air-conditioning
Differentiel lock -
Hydraulics specifications
System -
Valves -
Pump flow 15.85 gpm or 60.0 lpm
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 independent
Rear PTO RPM 540 (rpm)
Front PTO -
Front PTO RPM -
Mid PTO -
Mid PTO RPM -
Fuel consumption -
3 point hitch specifiations
Hitch system -
Rear hitch -
Rear hitch lift 10582 lbs or 4799 kg
Front hitch -
Front hitch lift -

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