John Deere 2550 VS John Deere 8420 specs comparison

John Deere 2550

General Infos

Make	John Deere
Model	2550
Country	United states
Production	From 1983  Until 1986
Price	-
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	John Deere 2550 Manual

Dimensions, sizes and tires

AG front tires	7.50-16
AG rear tires	16.9-3
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	7630 lbs or 3460 kg
Length	133.4 inches [338 cm]
Width	-
Height	101.4 inches [257 cm]
Wheelbase	90 inches [228 cm]
Ground clearance	-
Turning radius	14.8 feet [4.5 m]
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	239 ci or 3.9 L
Cylinders	4 cylinders
Engine power	-
Engine RPM	2500 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	24 gal or 90.8 L
Oil capacity	-
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 2550 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	33 amps

Clutch and gearbox specs

Trans system	John Deere TSS Creeper
Trans type	partially synchronized
Trans gears	12 forward and 8 reverse
Clutch system	dry disc

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	hydrostatic power
Braking system	differential hydraulic wet disc
Cabin type	Two-post ROPS
Differentiel lock	rear standard

Hydraulics specifications

System	closed center
Valves	1 or 2
Pump flow	13 gpm or 49.2 lpm
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	2300 psi or 158.6 bar
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	55.38 hp or 41.3 kW
Fuel consumption	4.3 gal/hour or 16.3 l/hour
Pulling power	48.67 lbs or 22 kg

Power take-off (PTO) specs

Claimed power	65 hp or 48.5 kW
Real power	65.53 hp or 48.9 kW
Engine @RPM	540@2382 (rpm)
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	4.2 gal/hour or 15.9 l/hour

3 point hitch specifiations

Hitch system	load and depth control
Rear hitch	II/I
Rear hitch lift	2,735 lbs or 1240 kg
Front hitch	-
Front hitch lift	-

John Deere 8420

General Infos

Make	John Deere
Model	8420
Country	United states
Production	From 2002  Until 2005
Price	-
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	John Deere 8420 Manual

Dimensions, sizes and tires

AG front tires	16.9R30
AG rear tires	18.4R46
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	21,650 lbs or 9820 kg
Length	211.9 inches [538 cm]
Width	-
Height	122.2 inches [310 cm]
Wheelbase	118.9 inches [302 cm]
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	60 to 80 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	496 ci or 8.1 L
Cylinders	6 cylinders
Engine power	314 hp or 234.1 kW
Engine RPM	2200 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	electronic high-pressure common rail (HPCR)
Fuel tank size	160 gal or 605.6 L
Oil capacity	28.5 qts or 27.0 L
Oil change	250 h
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 8420 Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	-
Cold Amps	925
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	150 amps

Clutch and gearbox specs

Trans system	John Deere PowerShift
Trans type	full power shift
Trans gears	16 forward and 4 reverse
Clutch system	hydraulic wet disc

Cabine and mechanical specs

Wheel drive	4x4 MFWD 4WD
Final drive	-
Steering	hydrostatic power
Braking system	hydraulic wet disc
Cabin type	Cab standard
Differentiel lock	-

Hydraulics specifications

System	closed center pressure-flow compensated
Valves	4 to 5
Pump flow	-
SVC flow	30 gpm or 113.6 lpm
Steering flow	-
Tank capacity	37 gal or 140.0 L
Hydraulic pressure	2900 psi or 200.0 bar
Max flow	33.5 gpm or 126.8 lpm

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	207.49 hp or 154.7 kW
Fuel consumption	13.6 gal/hour or 51.5 l/hour
Pulling power	29,964 lbs or 13591 kg

Power take-off (PTO) specs

Claimed power	235 hp or 175.2 kW
Real power	235.45 hp or 175.6 kW
Engine @RPM	540@1975 (rpm)
PTO Clutch	hydraulic wet discs
Rear PTO	independent
Rear PTO RPM	1000 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	13.7 gal/hour or 51.9 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	III/IIIN
Rear hitch lift	15180 lbs or 6885 kg
Front hitch	IIIN
Front hitch lift	11000 lbs or 4989 kg

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