John Deere 9420

John Deere 9420The 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
ModelJohn Deere 9420
Length6,950 mm (273.6 in)
Width2,930 mm (115.4 in)
Height (cab)3,490 mm (137.4 in)
Wheel base3,500 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 capacity1022.0 liters (270 US gal.; 224.8 Imp. gal)
BatteryThree 12V, CCA 925A
Cabin typeCommandView cab (standard) with air-conditioning
Engine modelJohn Deere
Engine typeFour-stroke, liquid-cooled, inline
Fuel typeDiesel
Displacement12.5 L, 12,536 cm2, (765.0 cu·in)
Bore and stroke127.0 mm X 165.0 mm (5 in X 6.5 in)
Compression ratio17.0:1
Horsepower431 PS (316.9 kW; 425.0 HP) at 2,100 rpm
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
Chassis4×4 articulated 4WD
Steering typeHydrostatic articulated
BrakesHydraulic wet disc
Transmission modelJohn Deere PowerSync
Transmission typePartial power shift
Gears24 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 modelJohn Deere Powershift
Transmission typeFull power shift
Gears18 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.)
Front tires Ag: 710/70R42
Rear tires Ag: 710/70R42
Three-Point Hitch
CategoryIII 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 typeIndependent
Rear PTO speed1000 rpm
Hydraulic system
Hydraulic typeClosed 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)
Pressure2900 psi (200 bar)
Valves4 or 5
Pump flow30.0 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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We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. In addition, the characteristics may vary depending on the modification and market. We do not provide advice on technical issues related to the any operation or repair. We do not recommend using provided information for repairing or spare parts ordering, use only official service manuals and spare-parts catalogs.

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