john deere 8420

2002 - 2005

8020 Series

Row-Crop tractor

8020 Series

Row-Crop tractor

Manufacturer

John Deere

Row-Crop tractor

Built in Waterloo, Iowa, USA

8420

wheeled tractor

8420T

crawler

John Deere 8.1L 6-cyl diesel

16-speed full power shift

Engine (gross)

284 hp 211.8 kW

Engine (net)

270 hp 201.3 kW

Engine (max)

314 hp 234.1 kW

PTO (claimed)

235 hp 175.2 kW

Drawbar (tested)

207.49 hp 154.7 kW

PTO (tested)

269.41 hp 200.9 kW

Four-wheel drive

Steering

hydrostatic power

Hydraulic wet disc brakes

Trailer brakes

hydraulic OptOptional

Cab standard.

Fuel

160 gal 605.6 L

Hydraulic system

37 gal 140.0 L

ILS Hydraulic system

39.6 gal 149.9 L

Front hubs

3.6 qts 3.4 L

ILS Front hubs

4.2 qts 4.0 L

Front diff.

14.2 qts 13.4 L

Type

closed center pressure-flow compensated (PFC)

Capacity

37 gal 140.0 L

ILS Capacity

39.6 gal 149.9 L

Pressure

2900 psi 200.0 bar

Valves

4 to 5

SCV flow

30 gpm 113.6 lpm

Total flow

33.5 gpm*With standard 45cc pump 126.8 lpm

 

42.5 gpm*Optional 57cc pump 160.9 lpm

Rear Type

III/IIIN

Rear lift

15180 lbs 6885 kg

 

17300 lbsOptOptional 7847 kg

Front Hitch

IIIN OptOptional

Front lift

11000 lbs 4989 kg

Rear PTO

independent

Clutch

hydraulic wet discs

Rear PTO Type

1000 (1.75)

 

540/1000 (1.375 optional)

Engine RPM

540@1975

 

1000@2200

Wheelbase

118.9 inches 302 cm

 

117.7 inches (ILS) 298 cm

Weight

21650 to 23780 pounds

Front tire

16.9R30

Rear tire

18.4R46

Location:

Serial number plate on rear of tractor.

2002

1001

2003

10001

2004

20001

2005

30001

FAQ: How to read a serial number table.

Ground

negative

Charging system

alternator

Charging amps

150

Batteries

2

Battery CCA

925

Battery volts

12