Farmall B

Name: Farmall B
Brand: Farmall

Power

21 hp[B] hp

Production

1939-1947

Engine

4-cylinder

Transmission

International Harvester

Weight

2400 lbs [1088 kg]

Drive

2WD

Under 25 HP 1930s 1940s

Introduction

International Harvester Farmall B

The International Harvester Farmall B is a row-crop tractor produced between 1939 and 1947. This model is part of the iconic Farmall series, known for its distinct configuration and utility in agricultural operations during the mid-20th century.

Engine and Performance

The tractor is powered by an International Harvester 4-cylinder, liquid-cooled, vertical I-head engine with a displacement of 113.1 cubic inches (1.9 liters). It is designed to operate on kerosene and delivers approximately 21 horsepower at a rated engine speed of 1400 RPM. The firing order is 1-3-4-2, and the engine includes specific maintenance requirements, such as a spark plug gap of 0.025 inches and intake/exhaust valve clearances of 0.014 inches when hot.

Transmission and PTO

The Farmall B utilizes a gear-type transmission providing four forward speeds and one reverse gear. Power delivery to implements is managed via a transmission-driven rear Power Take-Off (PTO) operating at 540 RPM, utilizing a 1.125-inch shaft.

Mechanical and Chassis

This two-wheel-drive tractor features manual steering and mechanical contracting band brakes. The operator occupies an open station. With a total weight of 2,400 lbs (1,088 kg) and a length of 108 inches, the machine offers adjustable rear tread settings ranging from 64 to 92 inches, depending on the wheel configuration, to accommodate various row widths.

Electrical System

The electrical system is based on a 6-volt battery configuration with a positive ground. Charging is handled by a generator. While equipped with a manual starter as standard, an electric starter was available as an option.

Conclusion

"The Farmall B, manufactured in Louisville, Kentucky, is distinguished by its centered engine and narrow front-end design, differentiating it from the offset-engine Farmall A. With over 75,000 units built, it remains a significant example of International Harvester's row-crop engineering, suitable for light-to-medium agricultural tasks and historical preservation."

Introduction

Production Information of Farmall, B

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

The Farmall A and B were nearly identical tractors. The A featured an offset engine and wide front end. The B had a centered engine, seat offset to the right, and narrow front end.

Row-Crop tractor


Manufacturer	Farmall (a part of International Harvester)
Total built	75,241
	Louisville, Kentucky, USA
Original price	$770
Factories	Chicago, Illinois, USA

Dimension and Tires Information of Farmall, B

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


Length	108 inches [274 cm]
Rear tread	64/68/72/76 inches [162/172/182/193 cm (wheel in)]
Weight	2400 lbs [1088 kg]
Width	79.5 inches [201 cm]
Rear tread	80/84/88/92 inches [203/213/223/233 cm (wheel out)]
Height	65 inches [165 cm]


	5-30
Ag front	6.00-12
Ag rear	9-24
	7.50-10
Ag rear	8-24
	10-24
Ag front	4.00-15

Engine Specifications of Farmall, B

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

International Harvester

Liquid-cooled vertical I-head

Kerosene

4-cylinder


Intake valve clearance	0.014 inches (hot) [0.356 mm]
Point gap	0.020 inches [0.508 mm]
Firing order	1-3-4-2
Exhaust valve clearance	0.014 inches (hot) [0.356 mm]
	Electric OptOptional
Starter volts	6
Starter	Manual
Displacement	113.1 ci [1.9 L]
Rated RPM	1400
Bore/Stroke	3.00x4.00 inches [76 x 102 mm]
Sparkplug gap	0.025 inches [0.635 mm]
Intake valve clearance	0.014 inches (hot) [0.356 mm]
Exhaust valve clearance	0.014 inches (hot) [0.356 mm]
Coolant capacity	13.5 qts [12.8 L]
Oil capacity	5 qts [4.7 L]

Transmission Information of Farmall, BY

Discover all variants of transmission available for this tractor model.

Transmission variants 1


Transmission	International Harvester
Type	Gear
Gears	4 forward and 1 reverse

Mechanical Specs of Farmall, BY

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

Two-wheel drive

Open operator station.

Manual steering

Mechanical contracting band brakes

Power Information of Farmall, BY

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


Rear PTO	Transmission
Rear PTO Type	540 (1.125)

Three-Point Hitch of Farmall, B

Hitch category and rear/front lift capacity.


Type	IH Pneumatic Lift-All

Electrical System of Farmall, B

Battery voltage, charging system and ground.


Ground	Positive
Charging system	Generator
Battery volts	6

Frequently asked questions

How much horsepower does the Farmall B have?

The Farmall B delivers 21 hp[B] HP.

What years was the Farmall B produced?

The Farmall B was produced in 1939-1947.

What engine does the Farmall B have?

The Farmall B is powered by a 4-cylinder engine.

What transmission does the Farmall B use?

The Farmall B uses a International Harvester transmission.

How much does the Farmall B weigh?

The Farmall B weighs 2400 lbs [1088 kg].

Is the Farmall B 4WD?

The Farmall B is available in 2WD.

More Farmall models

A21 HP · 1939 - 1947 10022 HP · 1954 - 1956 F-13520 HP · 1958 - 1960 F-13720 HP · 1961 - 1964 Regular22 HP · 1924 - 1932 14023 HP · 1958 - 1973 C23 HP · 1948 - 1951 13024 HP · 1956 - 1958

View all 74 Farmall models →

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