For Diesel engined version, see McCormick-Deering WD-9.
McCormick-Deering W-9
McCormick-Deering W-9 1941
McCormick-Deering W-9 1941
Model history
Model introduced 1941
Model discontinued 1953
Model status Discontinued Discontinued
No. produced 37,504 (includes W-9, WD-9, WR-9, WDR-9, I-9, ID-9)
Preceded by W-40
Engine Specification
Engine make International
Engine model C-335
Fuel type gasoline
Power hp 49 belt, 44 drawbar
Governed rpm 1500
Displacement cu in /(litre) 335 ci
No. of Cylinders 4
Bore in (mm) 4.4 in
Stroke in (mm) 5.5 in
Cooling system water
Naturally aspirated, Turbo or Supercharged NA
Transmission Details
Transmission type sliding gear
Gearbox make International
Forward 5
Reverse 1
Drive 2-WD
General Data
Linkage Category drawbar
Tyre Sizes (std/options)
Front 7.50-18 4-ply
Rear 12.75-32 6-ply
Tractor Dimensions
Length (inches/metres) 134 in
Width (inches/meters) 68 in
Height (inches/meters) 66 in
Weight (nominal) lb/kg 5780 lb
Turning circle (nominal) inches/meters 30 ft
Wheelbase 84 in
Other info
Factories Milwaukee Works, Milwaukee, Wisconsin
Plow rating 4-14"
Nebraska Tests No. 369
Approximate Cost new in (year) $1220 (1941), $3162 (1951)
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The McCormick-Deering W-9 was a standard tread gasoline engined tractor built by the International Harvester company from 1941 to 1953 in Milwaukee, Wisconsin.

Model historyEdit

For Company history, see International Harvester.

The McCormick-Deering W-9 resembled the smaller W-4 and W-6 but had a more massive appearance. It had no row crop counterpart but instead shared its engine and transmission with the T-9 crawler. Built in the Milwaukee Works, the transmission-final drive design fro the W-9 was quite different from the Farmall Works-built W-4 and W-6. In 1941 the W-9 competed with other wheatland-style tractors including the Allis-Chalmers A, the outdated 2-speed Baker 22-40, Case L, Eagle 6A, Huber HS, John Deere D, Minneapolis-Moline GT, and Oliver 90. When the diesel-powered WD-9 was upgraded to become the Super WD-9 in 1953 the gasoline-powered W-9 was not replaced.

Timeline Edit

  • 1940 - McCormick-Deering WD-9 diesel-powered standard-tread tractor replaced the WD-40
  • 1941 - McCormick-Deering W-9 gasoline-powered model added
  • 1946 - brand name shortened from McCormick-Deering to McCormick
  • 1953 - W-9 discontinued

Factory locations Edit

Milwaukee Works, Milwaukee, Wisconsin

Specification Edit

See Infobox for basic details

  • Standard tires
    • Front: 30"x6" steel; 7.50-18 4-ply (1949)
    • Rear: 48"x12" steel; 14-34 6-ply (1949)

Variations and Options Edit

  • Optional tires
    • Front: 7.50-18 4 or 6-ply (1941)
    • Rear: 12.75-32 or 13.50-32 6-ply (1941); 13-34 or 14-34 6-ply (1946); 15-34 6-ply (1949); 18-26 8-ply (1950)

Serial Numbers Information Edit

Year Serial no. run
Serial no. run
Number Built[2] Notes
1941 WCB578 2992 1764 Serial range includes W-9, WD-9, WR-9, WDR-9, I-9, ID-9
1942 2993 3650 1263 Number built includes W-9, WD-9, WR-9, WDR-9, I-9, ID-9
1943 3651 5393 1220
1944 5394 11458 5765
1945 11459 17288 5868
1946 17289 22713 5373
1947 22714 29206 6235
1948 29207 36158 6247
1949 36159 45550 9485
1950 45551 51738 6937
1951 51739 59406 7231
1952 59407 64013 5815
1953 64014 66870[3] 2857
Total built 37504 Total built includes W-9, WD-9, WR-9, WDR-9, I-9, ID-9

Preservation Edit

No information on any individual examples of these tractors in preservation is currently available on here.

Do you know of any examples to list ?

List of Preserved McCormick-Deering W-9 series tractors
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Make + Model No. Reg No.
(if known)
Serial No. Build-Date Engine-Type/Make Owner
(if known)
Photo Were seen/Featured in Other info
W-9 EWX 17 serial no ? date ? Perkins owner ? McCormic-Deering W-9 Perkins - EWX17 at Welland 2012 - IMG 0900 Welland Steam and Country Rally 2012 Has a Perkins engine conversion
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Make & model reg no serial no date built engine owner Image needed LHB

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Gallery Edit

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See also Edit

Collection related info
  • Shows and Meets - events featuring tractors and other machinery
  • Clubs Listing - List of clubs including various tractor marques
  • Collections - list of private collections with tractors (add yours)
  • Museums - includes museums featuring tractors (please add missing ones)

References / Sources Edit

  • Please supply some relevant references or sources for information for verification of data.
  1. 1.0 1.1 Wendel, C. H., 150 Years of International Harvester, Crestline Publishing, Sarasota, Florida, 1981
  2. Klancher, Lee, International Harvester Photographic History, Motorbooks International, Osceola, Wisconsin, 1996
  3. Baumheckel, Ralph and Borghoff, Kent, International Farm Equipment Product History, American Society of Agricultural Engineers, St. Joseph, Michigan, 1997

External Links Edit

  • Add any suitable (& Relevant) web links here