John Deere

John Deere 7420

The John Deere 7420 is a row-crop tractor produced from 2003 to 2007 as part of the 7020 Series. It features a 6.8L 6-cylinder turbocharged diesel engine producing 135 hp, with multiple transmission options including 16-speed partial power shift, 24-speed AutoQuad, and an Infinitely Variable Transmission (IVT) available with MFWD. The tractor offers two- or four-wheel drive, electro-hydraulic differential lock, and a ComfortGard Cab with air-conditioning. It has a fuel tank capacity of 54.7 gallons and hydraulic pump flow of 26.7 gpm. The 7420 supports a rear Type II hitch with lift capacities up to 8700 lbs optional, and PTO options include independent rear and optional front PTO. Dimensions vary with 2WD and 4WD wheelbases, and the tractor weighs between 12,890 and 15,655 lbs depending on configuration. Attachments include the 741 Loader with various lift and breakout capacities. The 7420 was built in Waterloo, Iowa, USA.
Power135 hp
Founded2003 - 2007
Model7420

Technical Specifications

Detailed specifications and technical data for John Deere 7420

Power
Engine135 hp / 100.7 kW
PTO (tested)127.38 hp / 95.0 kW
PTO (claimed)115 hp / 85.8 kW
Drawbar (tested)102.86 hp / 76.7 kW
Engine
Typeturbocharged diesel
ModelJohn Deere PowerTech 6068HF475
Power135 hp / 100.7 kW
Torque450 lb-ft / 610.2 Nm
Coolingliquid-cooled
Idle RPM850-2250
Cylinders6-cylinder
Fuel tank54.7 gal / 207.0 L
Rated RPM2100
Torque RPM1500
Air cleanerdual paper elements
Bore/Stroke4.19x5.00 inches / 106 x 127 mm
Compression17:1
Displacement414 ci / 6.8 L
Firing order1-5-3-6-2-4
Oil capacity22.2 qts / 21.0 L
Operating RPM1300-2100
Starter power4.1 hp / 3.1 kW
Starter volts12
Coolant capacity29.6 qts / 28.0 L
Weight
Shipping12,890 lbs / 5846 kg
Ballasted15,655 lbs / 7101 kg
Operating13,280 lbs / 6023 kg
Max Drawbar4,955 lbs / 2247 kg
Max capacity22,035 lbs / 9995 kg
Max rear axle17,185 lbs / 7795 kg
Max front axle9,035 lbs / 4098 kg
Max front axle with loader15,100 lbs / 6849 kg
Variants
7420row-crop
7420HChigh-crop
Electrical
Groundnegative
Battery CCA850
Battery volts12
Charging amps115 / 150
Charging systemalternator
Hydraulics
Typeclosed-center PFC
Valves4
Pump flow26.7 gpm / 101.1 lpm
Mechanical
CabComfortGard Cab standard with air-conditioning
DriveTwo- or four-wheel drive
BrakesHydraulic wet disc brakes
Final drivesinboard planetary
Power steeringyes
Differential lockelectro-hydraulic rear
Production
Years2003 - 2007
Series7020 Series
Built inWaterloo, Iowa, USA
CategoryRow-Crop tractor
Attachments
Dump angle58.9°
Loader model741 Loader
Reach dumped38.2 inches / 97 cm
Reach ground113.4 inches / 288 cm
Height at pin172.5 inches / 438 cm
Bucket width 173 inches / 185 cm
Bucket width 296 inches / 243 cm
Breakout at pin7779 lbs / 3528 kg
Breakout bucket7172 lbs / 3253 kg
Clearance level167 inches / 424 cm
Clearance dumped139.3 inches / 353 cm
Lift 1.5m at pin6259 lbs / 2839 kg
Lift full at pin4617 lbs / 2094 kg
Breakout at 800mm5913 lbs / 2682 kg
Lift 1.5m at 800mm4966 lbs / 2252 kg
Lift full at 800mm3527 lbs / 1599 kg
Rollback ground line38.9°
Transmission
Type 1partial power shift
Gears 116 forward and reverse
Gears 224 forward and reverse
Gears 3infinite forward and reverse
Notes 3available with MFWD only
Options16-speed partial power shift, 24-speed
Description 1Four power shift speeds (1-4) in four ranges (A-D) with left-hand reverser.
Oil capacity 159.2 qts / 56.0 L
Transmission 1John Deere PowrQuad
Transmission 2AutoQuad
Transmission 3Infinitely Variable Transmission (IVT)
Tractor hitch
Rear TypeII
Rear lift7450 lbs / 3379 kg
Optional rear lift8700 lbs / 3946 kg
Serial Numbers
20031001
200410001
200530001
200645001
200760001
LocationOn the main tractor frame, right side, above the front axle.
Dimensions & Tires
Width96 inches (Minimum width with standard axle) / 243 cm
Height114.1 inches / 289 cm
Length203.3 inches / 516 cm
Rear tire18.4R38
Front tire14.9R28
2WD Wheelbase112.8 inches / 286 cm
4WD Wheelbase104.3 inches / 264 cm
Flanged rear axle65.5 inch length / 1663 mm
Front tread (2WD)59.5 to 87.5 inches / 151 to 222 cm
Front tread (4WD)59.4 to 83.4 inches / 150 to 211 cm
Rear tread (flange axle)60 to 88 inches / 152 to 223 cm
Rear tread (long flange)76 to 96 inches / 193 to 243 cm
Rear tread (96-inch axle)60 to 104.6 inches / 152 to 265 cm
4WD Clearance (front axle)20.5 inches / 52 cm
Rack-and-pinion rear axle 13.4 by 96 inches / 86 by 2438 mm
Rack-and-pinion rear axle 23.4 by 110.5 inches / 86 by 2806 mm
Rear tread (110.5-inch axle)60 to 119.2 inches / 152 to 302 cm
Power Take-off (PTO)
Clutchelectro-hydraulic
Rear PTOindependent
Front PTOindependent (Optional. Field conversion kit.)
Rear PTO Type540/1000 (1.375)
Front PTO Type1000