McCormick-Deering WK-40
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 McCormick-Deering WK-40 1937 | |
| Model history | |
|---|---|
| Model introduced | 1937 |
| Model discontinued | 1940 |
| Model status | Discontinued |
| No. produced | 5,440 WK-40 and WD-40 in 1937-1940 |
| Preceded by | McCormick-Deering WA-40 |
| Superseded by | McCormick-Deering W-9 |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 | steel 34"x6" |
| Rear | steel 50"x12" |
| Tractor Dimensions | |
| 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 |
| Wheelbase | 85 in |
| Other info | |
| Factories | Milwaukee Works, Milwaukee, Wisconsin |
| Plow rating | 4 |
| 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.
Contents |
Model history
Edit
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.
Timeline Edit
Factory locations Edit
International Harvester Milwaukee Works, Milwaukee, Wisconsin
SpecificationsEdit
See infobox for basic details
Variations and Options Edit
- 4-speed transmission replaced 3-speed in 1938
- Optional rubber tires
- 1937
- front: 7.50-20
- rear: 12.75-32
- 1938
- front: 7.50-20
- rear: 12.75-32, 13.50-32
- 1937
Serial numbers and production figuresEdit
| Year | Serial run[1] | Number Built[2] | 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 |
Preserved modelsEdit
Add known examples in preservation ro the list below.
- Bill Koski of Owosso, Michigan owns a restored WK-40.[3]
| Make + Model No. | Reg No. (if known) | Serial No. | Build-Date | Engine-Type/Make | Owner (if known) | Photo | Were seen/Featured in | Other info |
|---|---|---|---|---|---|---|---|---|
| McCormick-Deering WK40 | 76 RNM | KC2277 | 1936 | International | B.Bowles, Wrangle | 
| Carrington Steam and Tractor Rally 2011 | Restored |
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| Make & model | reg no | serial no | date built | engine | owner |
| seen at | misc info |
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Gallery Edit
Add extra photos here please.
McCormick-Deering WK-40 1940 on 7.50-20 front and 12.75-32 rear rubber tires
McCormick-Deering WK-40 engine, 1940
See alsoEdit
- List of International Harvester vehicles
- International Harvester
- Case IH
- McCormick-Deering WA-40
- McCormick-Deering WD-40
ReferencesEdit
- ↑ 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
External linksEdit
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