| Production |
| Manufacturer: | John Deere
|
| Type: | Agricultural Crawler tractor
|
| Factory: | Waterloo, Iowa, USA
|
| Variants |
| 8420: | wheeled tractor
|
| 8420T: | 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)
|
| Dimensions & Tracks |
| Wheelbase: | 89 inches
226 cm
|
| | 120 inches
304 cm (wide track opt)
|
| Weight: | 25950 to 26380 pounds
|
| 16-inch tracks |
| Full dimensions and tracks ... |
| 8420T Serial Numbers |
| Location: | Rear of tractor
|
| Electrical |
| Ground: | negative
|
| Charging system: | alternator
|
| Charging amps: | 150
|
| Batteries: | 2
|
| Battery CCA: | 925
|
| Battery volts: | 12
|
|
