Best John Deere 6420 Reviews: A Machine for All Tasks! (Best 2023 Expert)

If you need a powerful utility tractor, the John Deere 4620 is the right option for you. From light-duty tasks to hauling and other heavy-duty performances, the machine does it all.

So, read the John Deere 6420 review to find all specs, benefits, and features, and learn why it’s a good tractor.

Key Points:

  • The model is a powerful utility tractor with two diesel engines, PTO, disk, wet work, and push/pull elements for large farms.
  • With four transmission types, the tractor provides the infinitely variable transmission as the best due to the infinite number of gears.
  • You can adjust the cab. The tractor comes with a two-post ROPS model, but the ConfortGab Cab is optional for ease of use.

John Deere 6420: Best Farming Buddy

If you’re still wondering whether or not the JD machine should be your #1 option, please refer to the details below for a better understanding.

1. John Deere 6420 history

john deere 6420 review

The John Deere 6420 is a 2WD or 4WD utility tractor produced by John Deere in Mannheim, Baden-Württemberg, Germany. The production was from 2002 to 2006, so it’s a relatively new model. The tractor was sold for the original price of $44,000.

The tractor was famous for having two engines and four transmissions so that farmers could perform multiple operations for maximum efficiency.

2. John Deere 6420 mechanics

At the heart of their vehicles lies a chassis featuring both 4×2 2WD and 4×4 MFWD 4WD configurations, which provides superior off-road capability and stability in all types of terrain.

For added comfort, the hydrostatic power steering system makes controlling the vehicle as easy as possible. The hydraulic wet disc brakes provide consistent stopping power.

To top it off, the two-post ROPS is standard, with an optional ConfortGard Cab for added protection and comfort. John Deere mechanics make sure that every ride is a safe one.

Chassis4×2 2WD
4×4 MFWD 4WD
Steeringhydrostatic power steering
Brakeshydraulic wet disc brakes
CabTwo-post ROPS (the ConfortGard Cab is optional)

3. John Deere 6420 dimension specs

Overall, the John Deere 6420 is an impressive and powerful tractor. The heavy-duty machine uses a maximum weight capacity of more than 11,000 pounds and performs even the heaviest tasks. You can use it for mowing equipment, removing snow, leveling land, etc.

Weight (shipping)10,064 lbs (4565 kg)
10,474 lbs (4751 kg) (4WD)
Weight (operating)11,110 lbs (5039 kg) (4WD cab)
Weight (max capacity)17,635 lbs (7999 kg)
Front axle load11,685 lbs (5300 kg) (2WD)
12,125 lbs (5499 kg) (4WD)
Rear axle load14,325 lbs (6497 kg)
Wheelbase94.5 inches (240 cm)
Length162.7 inches (413 cm)
Min Width61.8 inches (156 cm)
Height98.3 inches (249 cm)
Clearance (front axle)23.1 inches (58 cm( (2WD)
18 inches (45 cm) (4WD)
Front tread58.7 to 101.7 inches (149 to 258 cm) (2WD)
59.7 to 79.4 inches (151 to 201 cm) (4WD)
Rear tread63.1 to 90.6 inches (160 to 230 cm)

4. John Deere 6420 engine specs

As previously mentioned, the John Deere 6420 tractor uses two engine types:

  1. John Deere PowerTech 4045HL070
  2. John Deere PowerTech 4045HL473

Let’s see the specs.

Engine John Deere PowerTech 4045HL070 turbocharged

Typediesel 4-cylinder liquid-cooled 276 ci (4.5 L)
Cylinder Bore4.19×5. inches (106 x 127 mm) of the piston stroke
EmissionsTier I
Power110 HP (82 kW)
Air cleanerdry
Rated RPM2300
Idle RPM875-2510
Operating RPM1000-2300
Torque273 lb-ft (370.2 Nm)
Torque RPM1500
Firing order1-3-4-2
Starter volts12
Starter power4 hp (3.0 kW)
Oil Capacity16.8 qt (15.9 L)
Oil change500 h
Coolant capacity14.4 qt (13.6 L)
Intake valve clearance0.014 inches (0.356 mm)
Exhaust valve clearance0.018 inches (0.457 mm)

Engine John Deere PowerTech 4045HL473 four-cylinder

Typeturbocharged diesel engine liquid-cooled 276 ci (4.5L)
Cylinder Bore4.17 inches (106mm), 5 inches (127 mm) piston stroke
Power110 Horsepower (82 kW)
Rated RPM2300 maximum output power
Torque346.27 ft-lb (469.2 Nm)
Torque RPM1500
Fuel48.9 gal (185.1 L)
Hydraulic system 13.7 gals (51.9 L)
15.9 gal (60.2 L) (IVT)

5. John Deere 6420 hydraulic specs

The John Deere 6420 tractor features a closed center pressure flow compensated hydraulic system with a capacity of 13.7 – 15.9 gallons, depending on the IVT option. This allows for the smooth and efficient operation of the tractor and its various implements.

Typeclosed center pressure flow compensated
Capacity13.7 gals (51.9 L)
15.9 gal (60.2 L) (IVT)
Pressure2900 psi (200.0 bar)
Pump flow25 GPM (94.6 LPM)

6. John Deere 6420 transmission specs

how much does a john deere 6420 weight

The John Deere PowerTech 4045HL070 or 4045HL473 engine types are equipped with four transmission models, including:

  1. fully synchronized transmission with 12 forward and four reverse gears
  2. partial power shift transmission with 16 forward and 16 reverse gears,
  3. partial power shift transmission with 24 forward and 24 reverse gears
  4. infinitely variable transmission with infinite forward and reverse gears.
TransmissionJohn Deere SyncroPlus
Typefully synchronized
Gearstwelve forward and four reverse gears
Clutchwet disc
Oil capacity55 QTS [52.1 L]
Oil typeJD HyGard

7. John Deere 6420 power and PTO specs

The John Deere 6420 is an impressive workhorse, equipped with a 110 HP engine and 90 HP PTO. With these impressive specs, the John Deere 6420 can do any job quickly and efficiently.

Let’s see the key features.

Engine110 HP [82.0 kW]
PTO (claimed)90 HP [67.1 kW]
Drawbar (tested)75.4 HP [56.2 kW]
PTO (tested)103.9 HP [77.5 kW]
Rear PTOindependent
Rear RPM540
Engine RPM540 at 2124
540 at 2143 (reversible)
1000 at 2208
Front PTOoptional
Front RPM1000
Engine RPM1000 at 2185

8. John Deere 6420 three-point hitch

The Deere 6420 uses the Category 2 three-point hitch, which is suitable for all farming tasks. With its dependable build and outstanding performance, the John Deere 6420 is an ideal choice for any farming or agricultural operation.

It can take on heavy-duty jobs easily and help you get your work done faster with its reliable power.

Rear TypeII
Rear lift4745 lbs [2152 kg]

9. John Deere 6420 electric specs

The John Deere 6420 electric tractor is equipped with a negative ground charging system and alternator, providing 90 amps, 115 amps, or 150 amps of power. This allows the operator to run multiple electrical components and tools while in the field.

The John Deere 6420 also offers great power when working on heavy jobs.

With its easy-to-use controls and durable design, the John Deere 6420 electric tractor will provide reliable performance for years to come.

Charging systemalternator
Charging amps90

10. John Deere 6420 tire specs

The John Deere 6420 tractor is equipped with two types of tires depending on its 2WD or 4WD configuration. Both options are ideal for all weather elements and all-terrain types, ensuring smooth operations and efficiency.

Standard tires (ag)Front: 10.00-16. Rear: 18.4-34 (2WD)
Front: 13.6-24. Rear: 18.4-34 (4WD)

What Are the Alternatives?

john deere 6420 vs 6430

Of course, 6420 has various competitors with similar yet different vital features. Some of the most prominent counterparts include the 6430, 6410, and 6415 models.

Let’s see learn about their differences.

JD 6420 vs. 6430

  • 6430 is an IVT, while 6420 is a 16-speed PQ+
  • 6420 lacks a standard rail engine 6430 has
  • 6430 has a more refined cab, as expected, as it’s an improvement
  • 6430 also offers various sensors for more maneuverability and better management
  • 6430 also provides sensors for PTO, fuel, oil capacity, coolant capacity, used speed, and torque
  • 6430 offers more PTO and engine horsepower than 6420

JD 6420 vs. 6415

  • 6420 has a 24-speed quad with a power reverser, while 6415 offers 12-speed synchro with the reverser
  • 6415 provides a real-budget connector with no flow control, whereas 6420 uses the premium SCVS with maximum control of hydraulic engines
  • 6415 offers less hydraulic capacity than 6420
  • 6420 offers the air seat that the 6415 model lacks

JD 6420 vs. 6410

  • 6410 offers 104 engine horsepower while 6420 offers 110 horsepower
  • 6410 uses less fuel than 6420
  • 6410 provides greater rear lift than 6420
  • 6410 costs less than 6420

Pros and Cons of John Deere 6420

Here are some dos and don’ts if you choose the 6420 as your primary machine.


  • The John Deere 6420 is a powerful and reliable machine that can be used for various heavy-duty tasks.
  • It features a potent engine with up to four cylinders, providing plenty of torque and power for working in harsh conditions.
  • It has a comfortable operator’s station, allowing you to work for extended periods without getting tired.
  • With a lot of attachments and implements, it can be used for many different tasks.


  • It is fuel-intensive to operate, so you may need to fill up more frequently than other machines.
  • Parts and repairs can be expensive if the machine experiences a breakdown.
  • It is large and heavy, which may cause difficulty moving it from place to place.
  • The machine may require more frequent maintenance than other machines of its size.

Final Words

As you can see, the JD 6420 is a powerful and efficient machine, suitable for all farming tasks, and has robust performance.

Thanks to its PTO, engine power, tires, and hydraulic system, the tractor ensures maximum strength with minimum effort.

You can check the price with your dealer or visit various auctions if you pick it as the best solution.

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Ben Bareja

Ben Bareja, the owner-founder-webmaster of This website was conceptualized primarily to serve as an e-library for reference purposes on the principles and practices in crop science, including basic botany. Read more here

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