john deere 8420
 | 2002 - 2005
8020 SeriesRow-Crop tractor | 2002 - 2005 | 8020 Series | Row-Crop tractor |
|---|---|---|---|---|
2002 - 2005 | ||||
8020 Series | ||||
Row-Crop tractor | ||||
2002 - 2005 | |
|---|---|
8020 Series | |
Row-Crop tractor |
Production | |
|---|---|
Manufacturer | John Deere |
Row-Crop tractor | |
Built in Waterloo, Iowa, USA | |
Variants | |
|---|---|
8420 | wheeled tractor |
8420T | crawler |
John Deere 8420 Engine | |
|---|---|
John Deere 8.1L 6-cyl diesel | |
Engine details ...  |
John Deere 8420 Transmission | |
|---|---|
16-speed full power shift | |
Transmission details ...  |
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 |
Performance test details ...  | |
Mechanical | |
|---|---|
Four-wheel drive | |
Steering | hydrostatic power |
Hydraulic wet disc brakes | |
Trailer brakes | hydraulic OptOptional |
Cab standard. | |
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*With standard 45cc pump
126.8 lpm |
| 42.5 gpm*Optional 57cc pump
160.9 lpm |
Tractor hitch | |
|---|---|
Rear Type | III/IIIN |
Rear lift | 15180 lbs
6885 kg |
| 17300 lbsOptOptional
7847 kg |
Front Hitch | IIIN OptOptional |
Front lift | 11000 lbs
4989 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Clutch | hydraulic wet discs |
Rear PTO Type | 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 (ILS)
298 cm |
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 |
FAQ: How to read a serial number table. | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 150 |
Batteries | 2 |
Battery CCA | 925 |
Battery volts | 12 |
Recommended Products
Advertisement · Featured Tractor-Related Products
John Deere Original Equipment Green Spray Paint
OEM John Deere Part Number: TY25624 Lead-free formulation - user-friendly and environmentally safe. Suitable for exterior or interior use High-quallity, long-lasting, color-fast paints for weather-proven performance in field testing
Hy-Gard Transmission & Hydraulic Oil
Genuine OEM Part Number: TY22000 An exclusive formulation, specifically designed to protect John Deere transmissions, final drives, and hydraulic systems.
24V Kids Ride on Tractor with Trailer & Front Loader
24V kids ride on tractor equipped with a front loader and a detachable trailer, kids can use the trailer to transfer small things, the trailer can be easily disassembled. And kids can easily operate the front loader, making scoops, lifts, carries and dumps from the driver's seat, it can be a kids ride on excavator. Through riding this 24 volt ride on tractor, children can clean the garden with their parents and enjoy the happy parent-child time.
Heavy Duty Pistol Grip Grease Gun Kit
🚜 Power Performance: 8000psi Max working pressure guaranteed by iron die cast head and enhanced sealing. 🚜 Ergonomic Design: Pistol grip lets you operate with one hand. Sand blasted grid surface increases friction for safety.
* This page contains affiliate links, purchases may generate revenue for this site