John Deere 7420

John Deere 7420The John Deere 7420 is a 2WD or 4WD row-crop tractor from the 7020 series. This tractor was manufactured by John Deere in Waterloo, Iowa, USA from 2003 to 2007. The JD 7420 is equipped with a 6.8 L (414.0 cu·in) six-cylinder diesel engine and one of three transmission varians.

The John Deere 7420 row-crop tractor used the John Deere PowerTech 6068HF475 engine. It is a 6.8 L, 6,784 cm2, (414.0 cu·in) six-cylinder turbocharged diesel engine with 106.0 mm (4.17 in) of the cylinder bore and 127.0 mm (5 in) of the piston stroke. The compression ratio rating is 17.0:1. This engine produced 137 PS (100.7 kW; 135.0 HP) at 2,100 rpm of output power.

The John Deere 7420 is equipped with power steering, hydraulic wet disc brakes, ComfortGard Cab (standard), and 207.0 liters (54.7 US gal.; 45.5 Imp. gal) fuel tank.

John Deere 7420 Specifications

General Specifications
ModelJohn Deere 7420
Length5,160 mm (203.1 in)
Width2,430 mm (95.7 in)
Height2,890 mm (113.8 in)
Wheel base 2WD: 2,860 mm (112.6 in)
4WD: 2,640 mm (103.9 in)
Ground clearance (front axle) 4WD: 520 mm (20.5 in)
Weight (operating)6,025 kg (13,283 lbs)
Fuel tank capacity207.0 liters (54.7 US gal.; 45.5 Imp. gal)
Battery12V, CCA 850A
Cabin typeComfortGard Cab (standard) with air-conditioning.
Engine modelJohn Deere PowerTech 6068HF475
Engine typeFour-stroke, liquid-cooled, inline
Fuel typeDiesel
Displacement6.8 L, 6,784 cm2, (414.0 cu·in)
Bore and stroke106.0 mm X 127.0 mm (4.17 in X 5 in)
Compression ratio17.0:1
Horsepower137 PS (100.7 kW; 135 HP) at 2,100 rpm
Torque610.2 N·m (62.2 kg·m, 449.7 ft·lb) at 1,500 rpm
Oil capacity:21.0 L (22.2 US. qt, 18.5 Imp. qt.)
Coolant capacity:28.0 L (29.6 US. qt, 24.6 Imp. qt.)
Transmission and chassis
Chassis4×2 2WD or 4×4 MFWD 4WD
Steering typePower
BrakesHydraulic wet disc
Final driveInboard planetary
Differential lockElectro-hydraulic rear
Transmission modelJohn Deere PowrQuad
Transmission typePartial power shift
Gears16 forward and 16 reverse
Speed Forward: 30.6 kmh (19 mph) Reverse: kmh (0 mph)
Transmission oil capacity56.0 L (14.8 US. gal, 12.3 Imp. gal.)
Transmission modelAutoQuad
Transmission type
Gears24 forward and 24 reverse
Transmission model
Transmission typeInfinitely Variable Transmission (IVT) – available with MFWD only
GearsInfinite forward and reverse
Front tires Ag: 14.9R28
Rear tires Ag: 18.4R38
Three-Point Hitch
Control type
Lift capacity (at ends) 3,380 kg (7,450 lbs)
Optional: 3,945 kg (8,700 lbs)
PTO (Power take-off shaft)
Front PTO typeIndependent (optional)
Front PTO speed1,000 rpm
Rear PTO typeIndependent with electro-hydraulic clutch
Rear PTO speed540/1000 rpm
Hydraulic system
Hydraulic typeClosed-center PFC
Pump flow26.7 gpm (101.1 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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