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

John Deere 8400R	Power: 400 hp	Date of manufacture : 2016 - 2019

John Deere 8400T	Power: 250 hp[P]	Date of manufacture : 1997 - 1999

John Deere 8410	Power: 261 hp[P]	Date of manufacture : 1999 - 2002

John Deere 8410T	Power: 261 hp[P]	Date of manufacture : 2000 - 2001

John Deere 8420	Power: 284 hp	Date of manufacture : 2002 - 2005

John Deere 8420T	Power: 284 hp	Date of manufacture : 2002 - 2005

John Deere 8430	Power: 194 hp[P]	Date of manufacture : 1975 - 1978

John Deere 8430	Power: 305 hp	Date of manufacture : 2006 - 2009

John Deere 8430T	Power: 335 hp	Date of manufacture : 2006 - 2009