John Deere 8420

Last Updated: September 2024

Overview

The John Deere 8420 is a powerful row crop tractor built for serious farming. It has a strong diesel engine with 6 cylinders that can produce 270 horsepower. This tractor is designed to handle big jobs with ease, thanks to its 4-wheel drive system and sturdy build.

One of the standout features of the 8420 is its lifting power. The rear hitch can lift up to 17,897 pounds, which is very high compared to other tractors. It also has a full power shift transmission with 16 forward gears and 4 reverse gears, making it easy to find the right speed for any task. The tractor comes with a comfortable cab for the driver and has both 540 and 1000 rpm PTO options for running various implements. At 23,955 pounds, it's a heavy-duty machine built to last. John Deere is known for making reliable farm equipment, and the 8420 lives up to that reputation with its mix of power and versatility.
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Key Specifications

Category: Row Crop

Power Output: 270 hp (201.3 kW)

Transmission: Full power shift

Drive Type: 4WD

Operating Weight: 23955 lb (10866 kg)

Fuel Type: Diesel

John Deere 8420 vs. Similar Tractors

Power Output

The Power Output for the John Deere 8420 is Excellent. It is greater than 90% of similar Row Crop tractors in our database.

Horsepower distribution of Row Crop tractors

(across 1.1K+ tractors in our database)

Operating Weight

The Operating Weight for the John Deere 8420 is Excellent. It is greater than 93% of similar Row Crop tractors in our database.

Operating weight distribution of Row Crop tractors

(across 1.3K+ tractors in our database)

Engine Displacement

The Engine Displacement for the John Deere 8420 is Above Average. It is greater than 84% of similar Row Crop tractors in our database.

Engine displacement distribution of Row Crop tractors

(across 1K+ tractors in our database)

Engine Rated RPM

The Engine Rated RPM for the John Deere 8420 is Average. It is greater than 58% of similar Row Crop tractors in our database.

Engine rated RPM distribution of Row Crop tractors

(across 1K+ tractors in our database)

Technical Specifications

Engine

Manufacturer
John Deere
Cooling Type
Liquid-cooled
Cylinder Orientation
Inline
Fuel Type
Diesel
Induction Type
Turbocharged
Cylinders
6
Displacement
496 ci (8.1 L)
Bore
4.56 in (115.8 mm)
Stroke
5.06 in (128.5 mm)
Rated RPM
2200
Power Output
270 hp (201.3 kW)

Transmission

Type
Full power shift
Forward Gears
16
Reverse Gears
4

Drivetrain

Chassis
4x4 MFWD 4WD
Drive Type
4WD
Steering Type
Hydrostatic power
Brake Type
Hydraulic wet disc