Allis Chalmers HD21 VS RK Tractors RK55H 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	-

RK Tractors RK55H

General Infos

Make	RK Tractors
Model	RK55H
Country	United states
Production	From 2017
Price	-
Tractor type	Compact Utility tractor
Fuel	diesel
Service repair manual	RK Tractors RK55H Manual

Dimensions, sizes and tires

AG front tires	9.5x16
AG rear tires	14.9x24
Lawn front tires	12x16.5
Lawn rear tires	12x16.5
Indus front tires	12x16.5
Indus rear tires	16.9x24
Weight	3814 lbs or 1730 kg
Length	141.3 inches [358 cm]
Width	63.8 inches [162 cm]
Height	102.1 inches [259 cm]
Wheelbase	76.2 inches [193 cm]
Ground clearance	13.8 inches [35 cm]
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	127.6 ci or 2.1 L
Cylinders	4 cylinders
Engine power	55.1 hp or 41.1 kW
Engine RPM	2800 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	common rail direct injection
Fuel tank size	17 gal or 64.3 L
Oil capacity	-
Oil change	-
Starter motor	electric
Starter volts	12 V
Parts And Accessories	RK Tractors RK55H Parts

Electrical and battery specs

Batteries number	1
Batteries voltage	12 V
Battries Amps	-
Cold Amps	-
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	70 amps

Clutch and gearbox specs

Trans system	-
Trans type	hydrostatic
Trans gears	infinite (3-range) forward and reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x4 MFWD 4WD
Final drive	-
Steering	power
Braking system	wet disc
Cabin type	Two-post ROPS
Differentiel lock	-

Hydraulics specifications

System	-
Valves	2
Pump flow	9.5 gpm or 36.0 lpm
SVC flow	-
Steering flow	5 gpm or 18.9 lpm
Tank capacity	-
Hydraulic pressure	-
Max flow	14.5 gpm or 54.9 lpm

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	-
Fuel consumption	-
Pulling power	-

Power take-off (PTO) specs

Claimed power	42.2 hp or 31.5 kW
Real power	-
Engine @RPM	-
PTO Clutch	electro-hydraulic
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	Optional
Mid PTO RPM	-
Fuel consumption	-

3 point hitch specifiations

Hitch system	position and draft control
Rear hitch	I
Rear hitch lift	3314 lbs or 1503 kg
Front hitch	-
Front hitch lift	-

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