John Deere 7420

Name: John Deere 7420
Brand: John Deere

Power

135 hp

Production

2003-2007

Engine

Turbocharged diesel, 6-cylinder

Transmission

John Deere PowrQuad

Drive

2WD/4WD

100–140 HP 2000s

From the same series:

7320

7520

Introduction

John Deere 7420 Row-Crop Tractor

The John Deere 7420 is a row-crop tractor manufactured between 2003 and 2007 at the John Deere facility in Waterloo, Iowa, USA. Designed for versatile agricultural operations, this model is recognized for its robust engine performance and multiple transmission configurations.

Engine and Performance

The tractor is powered by the John Deere PowerTech 6068HF475, a 6.8-liter, 6-cylinder turbocharged diesel engine. It generates 135 horsepower at a rated speed of 2100 RPM and produces 450 lb-ft of torque at 1500 RPM. The engine cooling system features a liquid-cooled design, and it is built to operate within a range of 1300 to 2100 RPM for optimal efficiency.

Transmission and Drivetrain

Operators can choose between three transmission types: the 16-speed PowrQuad, the 24-speed AutoQuad, or the Infinitely Variable Transmission (IVT). All versions incorporate an electro-hydraulic clutch. The machine is available in either two-wheel or four-wheel drive, featuring inboard planetary final drives and hydraulic wet disc brakes for reliable stopping performance.

Hydraulics and Hitch

Equipped with a closed-center pressure and flow-compensated (PFC) hydraulic system, the tractor provides a pump flow of 26.7 gpm. It features four valves as standard. The rear hitch is a Category II type with a standard lift capacity of 7450 lbs, which can be increased to 8700 lbs with an optional upgrade.

Operator Environment

The tractor comes standard with the ComfortGard cab, which includes factory-installed air conditioning to ensure operator comfort during extended work hours. Steering is assisted by a power steering system, contributing to maneuverability in row-crop environments.

Conclusion

"The John Deere 7420 serves as a capable, mid-range row-crop tractor suitable for a variety of field tasks, offering sufficient hydraulic capacity and flexible transmission options to accommodate diverse agricultural implement requirements."

Introduction

Production Information of John Deere, 7420

The production information of the tractor (7420) includes details about its manufacturing.

Row-Crop tractor

Built in Waterloo, Iowa, USA


Manufacturer	John Deere

Dimension and Tires Information of John Deere, 7420

This section sums up the dimension and tires information of the tractor.


2WD Wheelbase	112.8 inches [286 cm]
Rear tread	60 to 119.2 inches [152 to 302 cm (110.5-inch axle)]
Width	96 inches*Minimum width with standard axle. [243 cm]
Rack-and-pinion rear axle	3.4 by 96 inches [86 by 2438 mm]
Rack-and-pinion rear axle	3.4 by 110.5 inches [86 by 2806 mm]
Front tread	59.4 to 83.4 inches [150 to 211 cm (4WD)]
Front tread	59.5 to 87.5 inches [151 to 222 cm (2WD)]
Height	114.1 inches [289 cm]
4WD Wheelbase	104.3 inches [264 cm]
Flanged rear axle	65.5 inch length [1663 mm]
Length	203.3 inches [516 cm]
4WD Clearance (front axle)	20.5 inches [52 cm]
Rear tread	60 to 104.6 inches [152 to 265 cm (96-inch axle)]
Rear tread	76 to 96 inches [193 to 243 cm (long flange)]
Rear tread	60 to 88 inches [152 to 223 cm (flange axle)]


Ag front	14.9R28
Ag rear	18.4R38

Engine Specifications of John Deere, 7420

Get the specifications for the engine and if different options are available.

John Deere PowerTech 6068HF475

Liquid-cooled

Turbocharged diesel

6-cylinder


Starter volts	12
Firing order	1-5-3-6-2-4
Air cleaner	Dual paper elements
Starter power	4.1 hp [3.1 kW]
Rated RPM	2100
Idle RPM	850-2250
Compression	17:1
Displacement	414 ci [6.8 L]
Power	135 hp [100.7 kW]
Bore/Stroke	4.19x5.00 inches [106 x 127 mm]
Torque RPM	1500
Oil capacity	22.2 qts [21.0 L]
Coolant capacity	29.6 qts [28.0 L]
Torque	450 lb-ft [610.2 Nm]
Operating RPM	1300-2100

Transmission Information of John Deere, 7420Y

Discover all variants of transmission available for this tractor model.

Transmission variants 1

Four power shift speeds (1-4) in four ranges (A-D) with left-hand reverser.


Transmission	John Deere PowrQuad
Oil capacity	59.2 qts [56.0 L]
Type	Partial power shift
Gears	16 forward and reverse

Transmission variants 2


Transmission	AutoQuad
Gears	24 forward and reverse

Transmission variants 3

Available with MFWD only


Transmission	Infinitely Variable Transmission (IVT)
Gears	Infinite forward and reverse

16-speed partial power shift

24-speed

Mechanical Specs of John Deere, 7420Y

This section summarizes all mechanical information such as the brake system and other specifications.

Two- or four-wheel drive

Hydraulic wet disc brakes

Power steering

ComfortGard Cab standard with air-conditioning.


Final drives	Inboard planetary
Differential lock	Electro-hydraulic rear

Power Information of John Deere, 7420Y

Discover the power specifications and options available for this tractor model but also PTO (Power Take-off) information.


Rear PTO	Independent
Front PTO Type	1000
Front PTO	Independent *Optional. Field conversion kit.
Clutch	Electro-hydraulic
Rear PTO Type	540/1000 (1.375)

Hydraulics Specifications of John Deere, 7420

Hydraulic system type, pressure, pump flow and valves.


Type	Closed-center PFC
Valves	4
Pump flow	26.7 gpm [101.1 lpm]

Three-Point Hitch of John Deere, 7420

Hitch category and rear/front lift capacity.


Rear Type	II
Rear lift	7450 lbs [3379 kg]
	8700 lbs (optional) [3946 kg]

Electrical System of John Deere, 7420

Battery voltage, charging system and ground.


Ground	Negative
Battery CCA	850
	150
Charging system	Alternator
Battery volts	12
Charging amps	115

Frequently asked questions

How much horsepower does the John Deere 7420 have?

The John Deere 7420 delivers 135 HP.

What years was the John Deere 7420 produced?

The John Deere 7420 was produced in 2003-2007.

What engine does the John Deere 7420 have?

The John Deere 7420 is powered by a Turbocharged diesel, 6-cylinder engine.

What transmission does the John Deere 7420 use?

The John Deere 7420 uses a John Deere PowrQuad transmission.

Is the John Deere 7420 4WD?

The John Deere 7420 is available in 2WD/4WD.

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