Allis Chalmers HD21 VS Challenger 75C specs comparison

Allis Chalmers HD21

General Infos

Make	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

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	contracting band
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	135.12 hp or 100.8 kW
Fuel consumption	-
Pulling power	40563 lbs or 18399 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	-

Challenger 75C

General Infos

Make	Challenger
Model	75C
Country	United states
Production	From 1993  Until 1995
Price	-
Tractor type	Agricultural Crawler tractor
Fuel	diesel
Service repair manual	Challenger 75C Manual

Dimensions, sizes and tires

AG front tires	25-in track
AG rear tires	25-in track
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	33305 lbs or 15107 kg
Length	232 inches [589 cm]
Width	120 inches [304 cm]
Height	128 inches [325 cm]
Wheelbase	107.1 inches [272 cm]
Ground clearance	-
Turning radius	-
Rear tread size	90 inches
Front tread size	90 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	629 ci or 10.3 L
Cylinders	6 cylinders
Engine power	325 hp or 242.4 kW
Engine RPM	2100 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	209 gal or 791.1 L
Oil capacity	31.7 qts or 30.0 L
Oil change	-
Starter motor	electric
Starter volts	12 V
Parts And Accessories	Challenger 75C Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	-
Cold Amps	900
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	115 amps

Clutch and gearbox specs

Trans system	-
Trans type	full power shift
Trans gears	10 forward and 2 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	crawler
Final drive	-
Steering	power
Braking system	hydraulic wet disc
Cabin type	Cab standard
Differentiel lock	-

Hydraulics specifications

System	closed center
Valves	4
Pump flow	27 gpm or 102.2 lpm
SVC flow	-
Steering flow	61.4 gpm or 232.4 lpm
Tank capacity	29 gal or 109.8 L
Hydraulic pressure	2550 psi or 175.8 bar
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	256 hp or 190.9 kW
Drawbar horsepower	251.01 hp or 187.2 kW
Fuel consumption	15.7 gal/hour or 59.4 l/hour
Pulling power	34,309 lbs or 15562 kg

Power take-off (PTO) specs

Claimed power	280 hp or 208.8 kW
Real power	285.55 hp or 212.9 kW
Engine @RPM	-
PTO Clutch	-
Rear PTO	-
Rear PTO RPM	1000 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	15.7 gal/hour or 59.4 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	-
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

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