For Petrol version, see McCormick-Deering TA-40.
McCormick-Deering TD-40 1935
McCormick-Deering TD-40 1934, Heidrick Ag History Center, Woodland, California
Model history
Model introduced 1934
Model discontinued 1939
Model status Discontinued
No. produced 5,965
Preceded by New model
Superseded by International TD-14
Engine Specification
Engine make International
Fuel type diesel
Power hp 48 belt, 43 drawbar
Governed rpm 1100
Displacement cu in /(litre) 461 ci
No. of Cylinders 4
Bore in (mm) 4.75 in
Stroke in (mm) 6.5 in
Cooling system water
Naturally aspirated, Turbo or Supercharged NA
Transmission Details
Transmission type sliding gear
Gearbox make International
Forward 5
Reverse 1
Drive crawler
General Data
Linkage Category drawbar
Tyre Sizes (std/options)
Front 16" tracks
Tractor Dimensions
Length (inches/metres) 140 in
Width (inches/meters) 64 in
Height (inches/meters) 66 in
Weight (nominal) lb/kg 11000 lb
Other info
Factories Tractor Works, Chicago, Illinois, USA
Plow rating
Nebraska Tests No. 230
Approximate Cost new in (year) $3450 (1934)
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The McCormick-Deering TD-40 was a diesel engined crawler tractor built by the International Harvester company from 1934 to 1939 in Chicago, Illinois, USA.

Model historyEdit

For Company history, see International Harvester.

The McCormick-Deering TD-40 crawler was the same as the TA-40 except for the unique 4-cylinder diesel engine, which started on gasoline and then quickly switched to diesel. The TD-40 was rated at 48 belt and 43 drawbar hp. In 1934 the TD-40 had no direct competition; in size and power it fit between the Caterpillar Thirty-Five and Caterpillar Fifty. The Allis-Chalmers K-O semi-diesel was the same size as the TD-40 but more powerful. In mid-1934 the 3-cylinder Caterpillar Forty succeeded the Thirty-Five and had a power output almost exactly the same as the TD-40. It was renamed the Caterpillar RD-6 the following year. The 1936 Bates 40 developed about the same power from a Waukesha 6-cylinder semi-diesel engine. In 1937 the TD-40’s engine speed was increased to 1,200 rpm, boosting the power of the tractor up to the level of the Allis-Chalmers K-O and ahead of the other makes.

Timeline Edit

Factory locations Edit

  • Tractor Works, Chicago, Illinois, USA

Specification Edit

See Infobox for basic details

Variations and Options Edit

  • Wide-tread version
  • Rigid-frame version (for pipeline boom)
  • Cab

Serial Numbers Information Edit

Year Serial no. run
Serial no. run
Number Built[1] Notes
1932 TCC501 732
1933 733 1246
1934 1247 1813
1934 TDC2501 2784
1935 2785 4392 1100
1936 4393 6302 1535
1937 6303 7718
1938 7719 8598
1939 8599 9565
Total built 5965

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 ?
  • As of May 25th 2011 I was searching through the NET info about TD-40 and run into this message: So it seems that the guy "20 Reeves Highwheeler " owned one such a machine in 2006 at least, and might own it now.
  • I own a 1935 model that was purchased new by my grand father. Here are some pictures of it.
10 9
TD-40 TD-40 Engine
Video of TD 40 in action
300px 300px
Crank Starting TD-40 Driving TD-40

Gallery Edit

Add extra photos here please.

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)
    • Heidrick Ag History Center, Woodland, California - large collection of antique wheel and crawler tractors

References / Sources Edit

  1. 1.0 1.1 1.2 Wendel, C. H., 150 Years of International Harvester, Crestline Publishing, Sarasota, Florida, 1981

External Links Edit

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