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Deere 8420 Tractors

Deere 8420  
Power: 284 hp
Date of manufacture :
2002 - 2005
Production
Manufacturer:John Deere
Type:Row-Crop tractor
Factory:Waterloo, Iowa, USA
Variants
8420:wheeled tractor
8420T:crawler
John Deere 8420 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):207.49 hp
154.7 kW
PTO (tested):269.41 hp
200.9 kW
John Deere 8420 Engine
Mechanical
Chassis:4x4 MFWD 4WD
Steering:hydrostatic power
Brakes:hydraulic wet disc
Trailer brakes:hydraulic*Optional
Cab:Cab standard.
Transmission:16-speed full power shift
Photos
John Deere 8420 photos...
Capacity
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
Hydraulics
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
126.8 lpm *With standard 45cc pump
 42.5 gpm
160.9 lpm *Optional 57cc pump
Tractor hitch
Rear Type:III/IIIN
Rear lift:15180 lbs
6885 kg
 17300 lbs
7847 kg *Optional
Front Hitch:IIIN*Optional
Front lift:11000 lbs
4989 kg
Power Take-off (PTO)
Rear PTO:independent
Clutch:hydraulic wet discs
Rear RPM:1000 (1.75)
 540/1000 (1.375 optional)
Engine RPM:540@1975
1000@2200
Dimensions & Tires
Wheelbase:118.9 inches
302 cm
 117.7 inches
298 cm (ILS)
Weight:21650 to 23780 pounds
Front tire:16.9R30
Rear tire:18.4R46
Full dimensions and tires ...
8420 Serial Numbers
Location:Serial number plate on rear of tractor.
2002:1001
2003:10001
2004:20001
2005:30001

how to read serial numbers...

Electrical
Ground:negative
Charging system:alternator
Charging amps:150
Batteries:2
Battery CCA:925
Battery volts:12
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Deere 8400T Power: 250 hp[P] Date of manufacture : 1997 - 1999
Deere 8410 Power: 261 hp[P] Date of manufacture : 1999 - 2002
Deere 8410T Power: 261 hp[P] Date of manufacture : 2000 - 2001
Deere 8420 Power: 284 hp Date of manufacture : 2002 - 2005
Deere 8420T Power: 284 hp Date of manufacture : 2002 - 2005
Deere 8430 Power: 194 hp[P] Date of manufacture : 1975 - 1978
Deere 8430 Power: 305 hp Date of manufacture : 2006 - 2009
Deere 8430T Power: 335 hp Date of manufacture : 2006 - 2009