John Deere 620

Name: John Deere 620
Brand: John Deere

Power

53 hp[P] hp

Production

1956-1958

Engine

LP gas, 2-cylinder 4-valve

Transmission

Unsynchronized gear

Drive

2WD

40–60 HP 1950s

From the same series:

520

720

Introduction

John Deere 620 Row-Crop Tractor

The John Deere 620 is a row-crop tractor produced in Waterloo, Iowa, between 1956 and 1958. Part of the John Deere 600 series, this two-wheel-drive machine was designed for mid-range agricultural operations and remains a notable model from the post-war era of American tractor manufacturing.

Engine and Performance

The tractor is powered by a liquid-cooled, two-cylinder, four-valve engine running on LP gas. With a displacement of 302.9 cubic inches (5.0 L) and a compression ratio of 8.1:1, the engine delivers approximately 53 horsepower at a rated speed of 1125 RPM. It features an oil bath air cleaner and requires 8 quarts (7.6 L) of oil for lubrication.

Transmission and Drivetrain

The drivetrain consists of an unsynchronized gear transmission providing 6 forward speeds and 1 reverse gear. Power is transferred through a mechanical dry disc clutch. Steering is facilitated by a power-assist system, while the braking system utilizes differential mechanical contracting band brakes to ensure maneuverability and control.

Hydraulics and Hitch

The hydraulic system operates at a pressure of 1200 psi (82.7 bar) with a pump flow capacity of 8.9 gpm (33.7 lpm). It is configured with 1 or 2 valves to manage auxiliary implements. The tractor is equipped with a Category II rear hitch and a standard 540 RPM rear power take-off (PTO).

Dimensions and Chassis

The John Deere 620 features a 90-inch (228 cm) wheelbase and is available in standard or high-crop configurations. The total length is 135.25 inches (343 cm) for the standard model, with a height of 88.125 inches (223 cm). The rear tread width is adjustable from 58 to 88 inches, or up to 104 inches on models equipped with long axles.

Conclusion

"With 20,848 units produced, the John Deere 620 served as a reliable workhorse for mid-century farms. Its combination of LP gas power, power-assist steering, and standard hydraulic capabilities made it a versatile choice for row-crop management and general field tasks of its era."

Introduction

Production Information of John Deere, 620

The production information of the tractor (620) includes details about its manufacturing.

Original price was $3,000 in 1956

Row-Crop tractor

Built in Waterloo, Iowa, USA


Manufacturer	John Deere
Total built	20,848

Dimension and Tires Information of John Deere, 620

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


High-crop Height	96.75 inches [245 cm]
Wheelbase	90 inches [228 cm]
High-crop Width	74 inches [187 cm]
Width	86.625 inches [220 cm]
Length	135.25 inches [343 cm]
Rear tread	58 to 88 inches [147 to 223 cm]
Height	88.125 inches [223 cm]
High-crop Length	147.1875 inches [373 cm]
Rear tread	58 to 104 inches [147 to 264 cm (long axle)]


Ag front	6.00-16
	13-30 (standard)
	7.50-20 (high-crop)
Ag rear	12.4-38

Engine Specifications of John Deere, 620

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

John Deere

Liquid-cooled

LP gas

2-cylinder 4-valve


Starter volts	12
Displacement	302.9 ci [5.0 L]
Compression	8.1:1
Bore/Stroke	5.50x6.375 inches [140 x 162 mm]
Oil capacity	8 qts [7.6 L]
Firing order	1-2
Rated RPM	1125
Air cleaner	Oil bath

Transmission Information of John Deere, 620Y

Discover all variants of transmission available for this tractor model.

Transmission variants 1


Manufacturer	John Deere
Oil capacity	24 qts [22.7 L]
Clutch	Mechanical dry disc
Type	Unsynchronized gear
Gears	6 forward and 1 reverse

Mechanical Specs of John Deere, 620Y

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

Two-wheel drive

Open operator station.

Differential mechanical contracting band brakes


Steering	Power assist

Power Information of John Deere, 620Y

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


Rear PTO Type	540

Hydraulics Specifications of John Deere, 620

Hydraulic system type, pressure, pump flow and valves.


Pressure	1200 psi [82.7 bar]
Valves	1 or 2
Pump flow	8.9 gpm [33.7 lpm]

Three-Point Hitch of John Deere, 620

Hitch category and rear/front lift capacity.


Rear Type	II

Electrical System of John Deere, 620

Battery voltage, charging system and ground.


Ground	Positive
Batteries	2
Battery volts	6

Frequently asked questions

How much horsepower does the John Deere 620 have?

The John Deere 620 delivers 53 hp[P] HP.

What years was the John Deere 620 produced?

The John Deere 620 was produced in 1956-1958.

What engine does the John Deere 620 have?

The John Deere 620 is powered by a LP gas, 2-cylinder 4-valve engine.

What transmission does the John Deere 620 use?

The John Deere 620 uses a Unsynchronized gear transmission.

Is the John Deere 620 4WD?

The John Deere 620 is available in 2WD.

More John Deere models

63053 HP · 1958 - 1960 104053 HP · 1980 - 1987 112053 HP · 1967 - 1975 113053 HP · 1974 - 1979 251053 HP · 1965 - 1968 452053 HP · 2005 - 2014 521053 HP · 1998 - 2001 522053 HP · 2001 - 2004

View all 824 John Deere models →

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