Skip to content
An independent tractor reference
TractorStack.

Find your tractor.

Menu ☰

Years in Production / 1970–1975

John Deere

3420

Explore the specifications, hardware, and original references for the John Deere 3420.

Generic tractor; no model photo available
No photo

77hp

Source index power

2WD Only

Drive

1970–1975

Production years

John Deere

Manufacturer

3420 / 01

At a glance

Overview

1970 - 1975

Row-Crop tractor

Production

Row-Crop tractor

Built in Rosario, Argentina

Manufacturer
John Deere

Mechanical

Two-wheel drive

Power steering

Hydraulic wet disc brakes

Open operator station.

Final Drives
planetary

Hydraulics

Type
closed center

Hitch

Rear Type
II

Pto

Rear Pto
independent
Rear Type
540

Electrical

Charging System
alternator
Charging Amps
28
Batteries
2
Battery Volts
6

3420 / 02

Under the hood

Engine Detail

John Deere

diesel

6-cylinder

liquid-cooled inline

Displacement
302.7 ci5.0 L
Bore Stroke
4.016x4.331 inches102 x 110 mm
Power
77 hp57.4 kW
Air Cleaner
dry
Compression Ratio
16.7:1
Rated Rpm
2500
Torque
221 lb-ft299.7 Nm
Torque Rpm
1250
Starter Volts
12
Fuel Type
diesel
Cylinders
6
Cooling
liquid-cooled inline

Engine Options

John Deere 5.0L 6-cyl diesel

Fuel Tank
34.1 gal129.1 L

3420 / 03

Gears & controls

Transmission

Transmission
Syncro-Range
Gears
8 forward and 2 reverse
Speeds Description
With 18.4x34 rear tires.

John Deere3420 Transmission

8-speed

3420 / 04

Size. Stance. Footprint.

Dimensions

Length
161 in408 cm
Height
67.3 in170 cm
Wheelbase
100.4 in255 cm
Ground clearance
13.4 in34 cm

Dimensions And Tires

Wheelbase
100.4 inches255 cm
Weight
7668 lbs3478 kg
Front Tire
6.00x16
Rear Tire
18.4x34

Tires And Tracks

Front Ag
6.00x16
Front Ag
7.50x18
Rear Ag
18.4x34
Rear Ag
13.6x38
Rear Ag
15.5x38
Rear Ag
23.1x26

See it in action

Videos

Watch John Deere 3420 videos from their original YouTube creators.