John Deere 8420 VS John Deere 1250 specs comparison

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

John Deere 1250

General Infos

Make	John Deere
Model	1250
Country	United states
Production	From 1982  Until 1989
Price	-
Tractor type	Compact Utility tractor
Fuel	diesel
Service repair manual	John Deere 1250 Manual

Dimensions, sizes and tires

AG front tires	9.5-24
AG rear tires	14.9-28
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	4125 lbs or 1871 kg
Length	134.3 inches [341 cm]
Width	65.2 inches [165 cm]
Height	-
Wheelbase	78 inches [198 cm]
Ground clearance	-
Turning radius	-
Rear tread size	51 to 79 inches
Front tread size	55 to 74.8 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	142.7 ci or 2.3 L
Cylinders	3 cylinders
Engine power	44 hp or 32.8 kW
Engine RPM	2500 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	direct injection
Fuel tank size	17.2 gal or 65.1 L
Oil capacity	11.2 qts or 10.6 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 1250 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	25 amps

Clutch and gearbox specs

Trans system	-
Trans type	sliding gear
Trans gears	9 forward and 3 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	inboard planetary
Steering	power assist
Braking system	differential hydraulic wet disc
Cabin type	Two-post ROPS
Differentiel lock	mechanical

Hydraulics specifications

System	open center
Valves	0 to 2
Pump flow	11.2 gpm or 42.4 lpm
SVC flow	-
Steering flow	4.7 gpm or 17.8 lpm
Tank capacity	-
Hydraulic pressure	-
Max flow	15.9 gpm or 60.2 lpm

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	33.44 hp or 24.9 kW
Fuel consumption	2.4 gal/hour or 9.1 l/hour
Pulling power	5,164 lbs or 2342 kg

Power take-off (PTO) specs

Claimed power	40 hp or 29.8 kW
Real power	40.98 hp or 30.6 kW
Engine @RPM	-
PTO Clutch	-
Rear PTO	continuous
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	2.4 gal/hour or 9.1 l/hour

3 point hitch specifiations

Hitch system	center-link draft sensing with position and control
Rear hitch	II/I
Rear hitch lift	2240 lbs or 1016 kg
Front hitch	-
Front hitch lift	-

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