Gray Tractor 20-36

Name: Gray Tractor 20-36
Brand: Gray Tractor

Power

36 hp[B] hp

Production

1922-1924

Engine

Gasoline, 4-cylinder

Transmission

Gear

Weight

6300 lbs [2857 kg]

25–40 HP 1920s

From the same series:

Introduction

Gray Tractor 20-36

The Gray Tractor 20-36 is a standard-tread tractor manufactured in Minneapolis, Minnesota, between 1922 and 1924. This model represents a period in American agricultural history where mechanical power began to replace animal traction for heavy-duty field operations.

Engine and Performance

The tractor is powered by a Waukesha DU liquid-cooled, 4-cylinder inline gasoline engine. With a displacement of 398 cubic inches (6.5 liters) and a bore/stroke ratio of 4.50 by 6.25 inches, the engine operates at a rated speed of 1000 RPM. This configuration provides a claimed 20 horsepower at the drawbar and 36 horsepower at the belt, enabling the machine to pull up to four plows.

Drivetrain and Transmission

The drivetrain utilizes a 3x1 drum drive system. The transmission is a manual gearbox offering two forward gears and one reverse gear, designed to provide the necessary torque for field work at the operating speeds typical of the early 1920s.

Dimensions and Chassis

The tractor is built on a 104-inch wheelbase with an overall length of 174 inches and a width of 81 inches. It features an open operator station with manual steering. The machine weighs 6,300 lbs (2,857 kg) and is equipped with steel wheels, specifically 40x8-inch wheels at the front and 54x54-inch wheels at the rear, ensuring stability for its intended agricultural applications.

Conclusion

"The Gray Tractor 20-36 is a robust, heavy-duty machine designed for primary tillage and belt work. Its mechanical simplicity and substantial build reflect the engineering standards of the early 20th century, making it a notable subject for historical agricultural equipment preservation."

Introduction

Production Information of Gray Tractor, 20-36

The production information of the tractor (20-36) includes details about its manufacturing.

Original price was $1,975 in 1922

Standard-tread tractor

Built in Minneapolis, Minnesota, USA


Manufacturer	Gray Tractor

Dimension and Tires Information of Gray Tractor, 20-36

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


Wheelbase	104 inches [264 cm]
Weight	6300 lbs [2857 kg]
Height	63 inches [160 cm]
Length	174 inches [441 cm]
Width	81 inches [205 cm]


Ag front	40x8 steel
Ag rear	54x54 steel

Engine Specifications of Gray Tractor, 20-36

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

Waukesha DU

Liquid-cooled inline

Gasoline

4-cylinder


Rated RPM	1000
Displacement	398 ci [6.5 L]
Bore/Stroke	4.50x6.25 inches [114 x 159 mm]

Transmission Information of Gray Tractor, 20-36Y

Discover all variants of transmission available for this tractor model.

Transmission variants 1


Type	Gear
Gears	2 forward and 1 reverse

Mechanical Specs of Gray Tractor, 20-36Y

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

Manual steering

Open operator station.


Drive	3x1 drum drive

Power Information of Gray Tractor, 20-36Y

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


Drawbar (claimed)	20 hp [14.9 kW]
Belt (claimed)	36 hp [26.8 kW]
Plows	4

Frequently asked questions

How much horsepower does the Gray Tractor 20-36 have?

The Gray Tractor 20-36 delivers 36 hp[B] HP.

What years was the Gray Tractor 20-36 produced?

The Gray Tractor 20-36 was produced in 1922-1924.

What engine does the Gray Tractor 20-36 have?

The Gray Tractor 20-36 is powered by a Gasoline, 4-cylinder engine.

What transmission does the Gray Tractor 20-36 use?

The Gray Tractor 20-36 uses a Gear transmission.

How much does the Gray Tractor 20-36 weigh?

The Gray Tractor 20-36 weighs 6300 lbs [2857 kg].

More Gray Tractor models

18-3636 HP · 1918 - 1921 20-3535 HP · 1914 - 1916 22-4040 HP · 1923 - 1927 18-3030 HP · 1917 15-2525 HP · 1915 - 1916

View all 6 Gray Tractor models →

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