The John Deere 9420 is a four-wheel drive tractor from the 9020 series. This tractor was manufactured by John Deere in Waterloo, Iowa, USA from 2002 to 2007. The John Deere 9420 is equipped with a 12.5 L (765.0 cu·in) six-cylinder diesel engine and one of two transmissions: a partial power shift transmission with 24 forward and 6 reverse gears or a full power shift transmission with 18 forward and 6 reverse gears.
The John Deere 9420 four-wheel drive used the John Deere engine. It is a 12.5 L, 12,536 cm2, (765.0 cu·in) six-cylinder turbocharged diesel engine with 127.0 mm (5 in) of the cylinder bore and 165.0 mm (6.5 in) of the piston stroke. The compression ratio rating is 17.0:1. This engine produced 431 PS (316.9 kW; 425.0 HP) at 2,100 rpm of output power.
The JD 9420 is equipped with hydrostatic articulated steering, hydraulic wet disc brakes, CommandView cab (standard) with air-conditioning, and 1022.0 liters (270 US gal.; 224.8 Imp. gal) fuel tank.
John Deere 9420 Specifications
| General Specifications | |
| Model | John Deere 9420 |
| Length | 6,950 mm (273.6 in) |
| Width | 2,930 mm (115.4 in) |
| Height (cab) | 3,490 mm (137.4 in) |
| Wheel base | 3,500 mm (137.8 in) |
| Ground clearance | Front axle: 730 mm (28.7 in) Drawbar: 430 mm (16.9 in) |
| Weight (shipping) | 15,820 kg (34,877 lbs) |
| Fuel tank capacity | 1022.0 liters (270 US gal.; 224.8 Imp. gal) |
| Battery | Three 12V, CCA 925A |
| Cabin type | CommandView cab (standard) with air-conditioning |
| Engine | |
| Engine model | John Deere |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 6 |
| Fuel type | Diesel |
| Displacement | 12.5 L, 12,536 cm2, (765.0 cu·in) |
| Bore and stroke | 127.0 mm X 165.0 mm (5 in X 6.5 in) |
| Compression ratio | 17.0:1 |
| Horsepower | 431 PS (316.9 kW; 425.0 HP) at 2,100 rpm |
| Starter | Electric |
| Oil capacity: | 41.6 L (44 US. qt, 36.6 Imp. qt.) |
| Coolant capacity: | 60.6 L (64 US. qt, 53.3 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×4 articulated 4WD |
| Steering type | Hydrostatic articulated |
| Brakes | Hydraulic wet disc |
| Transmission model | John Deere PowerSync |
| Transmission type | Partial power shift |
| Gears | 24 forward and 6 reverse |
| Speed | Forward: 38.6 kmh (24 mph) Reverse: 12.4 kmh (7.7 mph) |
| Transmission oil capacity | 128.7 L (34.0 US. gal, 28.3 Imp. gal.) With PTO: 132.5 L (35.0 US. gal, 29.1 Imp. gal.) |
| Transmission model | John Deere Powershift |
| Transmission type | Full power shift |
| Gears | 18 forward and 6 reverse |
| Speed | Forward: 40.1 kmh (24.9 mph) Reverse: 12.7 kmh (7.9 mph) |
| Transmission oil capacity | 134.0 L (35.4 US. gal, 29.5 Imp. gal.) With PTO: 137.8 L (36.4 US. gal, 30.3 Imp. gal.) |
| Tires | |
| Front tires | Ag: 710/70R42 |
| Rear tires | Ag: 710/70R42 |
| Three-Point Hitch | |
| Category | III or IV/IVN |
| Control type | – |
| Lift capacity (at ends) | 6,291 kg (13,870 lbs) Optional: 6,552 kg (14,445 lbs) |
| PTO (Power take-off shaft) | |
| Rear PTO type | Independent |
| Rear PTO speed | 1000 rpm |
| Hydraulic system | |
| Hydraulic type | Closed center pressure/flow compensated |
| Hydraulic capacity | 102.2 L (27.0 US. gal, 22.5 Imp. gal.) With 3-point: 106.0 L (28.0 US gal, 23.3 Imp. gal) Hi-flow: 113.6 L (30.0 US gal, 25.0 Imp. gal) Hi-flow/3-point: 117.3 L (31.0 US gal, 25.8 Imp. gal) |
| Pressure | 2900 psi (200 bar) |
| Valves | 4 or 5 |
| Pump flow | 30.0 gpm (113.6 lpm) |
| Total flow | 44.0 gpm (166.6 lpm) Powershift: 48.0 gpm (181.7 lpm) Hi-flow: 78.0 gpm (295.2 lpm) |
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