Tractors Specs > John Deere > John Deere 8420 4WD

John Deere 8420 4WD Specs

(2002)
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John Deere 8420 4WD General Information

Brand John Deere 
Model John Deere 8420 4WD 
Start year 2002 
End year 2005 
Category / Type Row-Crop tractor 
Distributor
Manufacturer John Deere 
Factory Waterloo, Iowa, USA 
Serial Number Location Serial number plate on rear of tractor. 
Number of total built
Original Price (in USD)

John Deere 8420 4WD Chassis, dimensions, weight and tires

Cabin Type Cab standard. 
Wheelbase 118.9 , 117.7 (ILS) in 
Length 211.9 in 
Fuel Capacity 160 
Operating Weight 23,780 (480/80R46 duals) lbs 
Front Tyres - Rims dimensions 16.9R30 
Rear Tyres - Rims dimensions 18.4R46 
Steering type hydrostatic power 
Brakes type hydraulic wet disc 

John Deere 8420 4WD Electrical System

Charging System alternator 
Charging Voltage - volts 
Ground negative 
Charging Amperage 150 A 
Number of batteries
Battery - voltage 12 volts 
Battery - Amp / Hour - Ah 
Battery - Cold Cranking Amperage 925 A 
Battery - Group
Engine Starter - voltage 12 v 

John Deere 8420 4WD Engine and Transmission Technical Data

Number of cylinders 6-cylinder 
Fuel Type turbocharged diesel 
Engine Code John Deere 
Engine size - Displacement - Engine capacity 496 ci 
Bore x Stroke 4.56x5.06 
Compression Ratio 16.5:1 
Maximum power - Output - Horsepower - hp @ 2200 rpm 
Engine Cooling Type liquid-cooled inline 
Engine Air Filter / Cleaner dry with secondary element 
Transmission Type full power shift John Deere PowerShift 
Transmission / Gearbox gears 16 forward and 4 reverse 
Transmission Clutch hydraulic wet disc 
Drive wheels - Traction - Drivetrain 4x4 MFWD 4WD 

John Deere 8420 4WD PTO - Power Take-Off

Rear PTO Type independent 
Rear PTO Power (Tested) 235 hp ( 269.41 hp) 
Rear PTO RPM 1000 (1.75) 

John Deere 8420 4WD Drawbar

Drawbar Power (Tested) - hp ( 207.49 hp) 

John Deere 8420 4WD Hydraulics

Type closed center pressure-flow compensated (PFC) 
NÂș of valves 4 to 5 
Pump flow - gpm 
Steering flow - gpm