Farmall BN

Last Updated: June 2024

Overview

The Farmall BN, a farm tractor notable for its service in row-crop applications, was released as part of International Harvester's well-respected tractor lineup. Manufactured between 1939 and 1947, the BN was built with attention to the needs of the time, featuring a straightforward and robust design. This tractor operates on a 2WD (4x2) chassis and is powered by an International Harvester C113 gasoline engine with a 113.1 cubic inch displacement, naturally aspirated through a simple inline cylinder setup. The tractor's mechanics are characterized by an unsynchronized gear transmission including four forward and one reverse gear, manifesting in practically sufficient speeds for various farming tasks. While modern comforts were minimal, this model offered a simple and functional open operator station and relied on manual steering and mechanical external contracting band brakes.
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Key Specifications

Category: Row Crop

Transmission: Unsynchronized gear

Drive Type: 2WD

Operating Weight: 1,799

Fuel Type: Gasoline

Farmall BN vs. Similar Tractors

Operating Weight
Poor
Greater than 0% of similar tractors.

Technical Specifications

Engine

Manufacturer
International Harvester
Model
C113
Cooling Type
Liquid-cooled
Cylinder Orientation
Inline
Valve Configuration
-
Fuel Type
Gasoline
Induction Type
Natural aspirated
Cylinders
4
Displacement (ci)
113.1
Bore (in)
2.99
Stroke (in)
4.02
Rated RPM
-
Power Output (hp)
-

Transmission

Type
Unsynchronized gear
Forward Gears
4
Reverse Gears
1
Total Gears
-

Dimensions

Length (in)
107.5
Width (in)
65
Height (in)
-
Operating Weight (lb)
1,799

Power Take-Off (PTO)

PTO Type
-
PTO Speed 1 (rpm)
540
PTO Speed 2 (rpm)
-
PTO Speed 3 (rpm)
-

Miscellaneous

Chassis
4x2 2WD
Drive Type
2WD
Steering Type
Manual
Coolant Capacity (qts)
13.5
Front Tire Diameter (in)
-
Front Tire Width (in)
-
Rear Tire Diameter (in)
-
Rear Tire Width (in)
-
Front/Rear Rim Diameter (in)
-
Tire Type
Agriculture
Manufacture - End Year
1947
Hitch Type
-
Hitch Category
-
Hitch Position
-
Hitch Capacity (lb)
-
Operator Station Type
Open
Starter Type
-
Brake Type
Mechanical external contracting band
Hydraulic System Type
-