International IK-40
International I-40 1937
International I-40 1937
Model history
Model introduced 1937
Model discontinued 1940
Model status Discontinued
No. produced 329 total IK-40 and ID-40
Preceded by McCormick-Deering I-40
Superseded by International I-9
Engine Specification
Engine make International
Fuel type distillate
Power hp 50 belt, 35 drawbar
Governed rpm 1750
Displacement cu in /(litre) 298 ci
No. of Cylinders 6
Bore in (mm) 3.75 in
Stroke in (mm) 4.5 in
Cooling system Water
Naturally aspirated, Turbo or Supercharged NA
Transmission Details
Transmission type sliding gear
Gearbox make International
Forward 3
Reverse 1
Drive 2-WD
General Data
Linkage Category Drawbar
Tyre Sizes (std/options)
Front 7.50-20 4-ply
Rear 12.75-28 6-ply dual rear
Tractor Dimensions
Length (inches/metres) 139 in
Width (inches/meters) 96 in
Height (inches/meters) 70 in
Weight (nominal) lb/kg 9550 lb
Turning circle (nominal) inches/meters 34 ft
Wheelbase 85 in
Other info
Factories Milwaukee Works, WI, USA
Plow rating
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The International IK-40 was built by International Harvester from 1937 to 1940.

Model historyEdit

For company history see main International Harvester article.

The International IK-40 industrial tractor was basically a renamed McCormick-Deering IA-40. However, it also had an enlarged engine and higher governed engine speed.

Timeline Edit

Factory locations Edit

International Harvester Milwaukee Works, Milwaukee, Wisconsin


See infobox for basic details

Variations and Options Edit

Serial numbers and production figuresEdit

Year Serial run Number Built[1] Notes (Total IK-40, and ID-40 built was 329).
1937 IKC521-618 98 IK-40 & ID-40
1938 IKC619-676 58 IK-40 & ID-40
1939 IKC677-770 94 IK-40 & ID-40
1940 IKC771-849 79 IK-40 & ID-40

Preserved modelsEdit

See alsoEdit


  1. Klancher, Lee 1996. International Harvester Photographic History, Motorbooks International, Osceola, Wisconsin, p.72

External linksEdit