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McCormick-Deering WK-40 1937
|No. produced||5,440 WK-40 and WD-40 in 1937-1940|
|Preceded by||McCormick-Deering WA-40|
|Superseded by||McCormick-Deering W-9|
|Power hp||50 belt, 35 drawbar|
|Displacement cu in /(litre)||298 ci|
|No. of Cylinders||6|
|Bore in (mm)||3.75 in|
|Stroke in (mm)||4.5 in|
|Naturally aspirated, Turbo or Supercharged||NA|
|Transmission type||sliding gear|
|Tyre Sizes (std/options)|
|Length (inches/metres)||142 in|
|Width (inches/meters)||66 in|
|Height (inches/meters)||67 in|
|Weight (nominal) lb/kg||6630 lb|
|Turning circle (nominal) inches/meters||34 ft|
|Factories||Milwaukee Works, Milwaukee, Wisconsin|
|Nebraska Tests No.||269|
|Approximate Cost new in (year)||$1305 (1940)|
The McCormick-Deering WK-40 was built by International Harvester from 1937 to 1940.
For company history see main International Harvester article.
In 1937 McCormick-Deering WK-40 was an upgrade of the McCormick-Deering WA-40, with the engine increased to 298 ci and the rpm increased from 1,600 to 1,750. The same basic tractor was also built with a diesel engine as the McCormick-Deering WD-40. Similar industrial models were the McCormick-Deering ID-40 and International IK-40 and ID-40.
Factory locations Edit
International Harvester Milwaukee Works, Milwaukee, Wisconsin
See infobox for basic details
Variations and Options Edit
- 4-speed transmission replaced 3-speed in 1938
- Optional rubber tires
- front: 7.50-20
- rear: 12.75-32
- front: 7.50-20
- rear: 12.75-32, 13.50-32
Serial numbers and production figuresEdit
|Year||Serial run||Number Built||Notes (Total WK-40 and WD-40 built in 1937-1940 was 5,440).|
|1937||WKC5120-7664||2545||WK-40 & WD-40|
|1938||WKC7665-9755||2091||WK-40 & WD-40|
|1939||WKC9756-10322||567||WK-40 & WD-40|
|1940||WDC10323-10559||275||WK-40 & WD-40|
Add known examples in preservation ro the list below.
- Bill Koski of Owosso, Michigan owns a restored WK-40.
|Make + Model No.||Reg No. |
|Serial No.||Build-Date||Engine-Type/Make||Owner |
|Photo||Were seen/Featured in||Other info|
|McCormick-Deering WK-40||76 RNM||WKC2277||1936||International||Brian Bowles, Wrangle||Carrington Steam and Tractor Rally 2011||Restored, Originally supplied new on steel wheels|
|McCormick-Deering W-40||unregistered||WKC10053||1939||International 298 FFB||Carl Hargreaves, Lancashire||Mid 1990's Canadian Import, Excellent running older restoration, with high speed top gear|
|Please add any tractor with known reg or serial no. with Photo if possible.|
|Make & model||reg no||serial no||date built||engine||owner||
|seen at||misc info|
|Create a page (link) for an individual tractor by linking the reg or serial number using reg number or serial number in the relevant column. Then once saved click the red link to start the new page and add info on that tractor.|
Add extra photos here please.
- List of International Harvester vehicles
- International Harvester
- Case IH
- McCormick-Deering WA-40
- McCormick-Deering WD-40
- ↑ Wendel, C. H. 1981. 150 Years of International Harvester, Crestline Publishing Co., Sarasota, Florida. (serial numbers p.412)
- ↑ Klancher, Lee 1996. International Harvester Photographic History, Motorbooks International, Osceola, Wisconsin, p.71
- ↑ Leffingwell, Randy 1999. International Harvester Tractors, MBI Publishing Co., Osceola, Wisconsin. pp.107-109,190