Deere 8420T

Production: 2002 - 2005  

Production
Manufacturer:	John Deere
Type:	Agricultural Crawler tractor
Factory:	Waterloo, Iowa, USA

Variants

wheeled tractor

crawler

John Deere 8420T Power
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):	205.84 hp 153.5 kW
PTO (tested):	270.62 hp 201.8 kW

Mechanical
Chassis:	crawler
Steering:	electro-hydraulic power
Brakes:	hydraulic wet disc
Cab:	Cab standard.
Transmission:	16-speed full power shift

Capacity
Fuel:	130 gal 492.1 L
Hydraulic system:	65 gal 246.0 L

Hydraulics
Type:	closed center pressure flow compensated (PFC)
Capacity:	65 gal 246.0 L
Pressure:	2900 psi 200.0 bar
Valves:	5
Pump flow:	30 gpm 113.6 lpm
Total flow:	33.5 gpm 126.8 lpm
42.5 gpm 160.9 lpm (optional)

Tractor hitch
Rear Type:	III/IIIN
Rear lift:	15,180 lbs 6885 kg

Power Take-off (PTO)
Rear PTO:	independent
Rear RPM:	1000 (1-3/4)

8420T Serial Numbers
Location:	Rear of tractor

Electrical
Ground:	negative
Charging system:	alternator
Charging amps:	150
Batteries:	2
Battery CCA:	925
Battery volts:	12

Engine Detail
John Deere
turbocharged diesel
6-cylinder
liquid-cooled inline
Displacement:	496 ci 8.1 L
Bore/Stroke:	4.56x5.06 inches 116 x 129 mm
Rated Power (ECE R24):	270 hp 201.3 kW
Rated Power (EC 97/98):	284 hp 211.8 kW
Maximum Power (ECE R24):	300 hp 223.7 kW
Maximum Power (EC 97/68):	314 hp 234.1 kW
Compression:	16.5:1
Rated RPM:	2200
Idle RPM:	900-2300
Operating RPM:	1500-2200
Starter volts:	12
Coolant capacity:	35.9 qts 34.0 L

Transmission
Transmission:	John Deere PowerShift
Type:	full power shift
Gears:	16 forward and 4 reverse
Oil capacity:	260 qts 246.1 L

Dimensions
Wheelbase:	89 inches 226 cm
120 inches 304 cm (wide track opt)
Length:	207 inches 525 cm
219.6 inches 557 cm (with front weights)
Width:	103.7 inches 263 cm (min)
150 inches 381 cm (max)
Height (cab):	122.9 inches 312 cm
Clearance (rear axle):	21.7 inches 55 cm
Clearance (drawbar):	17.7 inches 44 cm