International TD-15B
International TD-15B 1967
International TD-15B 1967
Model history
Model introduced 1963
Model discontinued 1972
Model status Discontinued
Preceded by TD-15 Series 151
Superseded by TD-15C
Engine Specification
Engine make International
Engine model DT-361
Fuel type diesel
Power hp 120 net
Governed rpm 2400
Displacement cu in /(litre) 361 ci
No. of Cylinders 6
Bore in (mm) 4.125"
Stroke in (mm) 4.5"
Cooling system water
Naturally aspirated, Turbo or Supercharged turbocharged
Transmission Details
Transmission type power shift with torque converter
Forward 4
Reverse 4
Drive crawler
General Data
Linkage Category drawbar
Tyre Sizes (std/options)
Front 18" tracks
Tractor Dimensions
Length (inches/metres) 144"
Width (inches/meters) 92"
Height (inches/meters) 86"
Weight (nominal) lb/kg 22400 lb
Wheelbase 74" gauge
Other info
Plow rating
Approximate Cost new in (year) $31470 (1972)
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The Edrob/International TD-15B was a diesel engined crawler tractor built by the International Harvester company from 1963 to 1972.

Model historyEdit

For Company history, see International Harvester.

The International TD-15B replaced the TD-15 Series 151. At 11 tons the new model was about the same weight as the old, but the brand new 115 net hp turbocharged 361 ci 6-cylinder diesel engine replaced the old 105-hp 554ci non-turbocharged six, the basic design of which dated back to 1940. The turbocharging and high 2,400 rpm of the new engine more than compensated for the smaller displacement. The TD-15B also used a new 4-speed power shift transmission instead of the old 6-speed gear drive. In sales/production the TD-15B was a reasonably close second to its main competitor, the 120-hp Caterpillar D-6C. The Allis-Chalmers HD-11EP was more powerful than both the International and Caterpillar at 140 net hp. In 1965 Case introduced its 1150, which was slightly smaller and less powerful than the TD-15B. The net hp of the TD-15B engine was increased to 120 in 1965 and a gear drive transmission was made available, with 5-speeds forward and 4 reverse.

The turbocharged 6-cylinder diesel engine of the TD-15B was enlarged from 361 ci to 407 ci in 1968 (as in the 1256 wheel tractor). The 120 net hp rating was unchanged. In 1970 the power rating was increased to 125 net hp (and 99 drawbar hp for the gear drive transmission).

Timeline Edit

  • 1962 - 115 net hp International TD-15B replaced the 105-hp TD-15 Series 151
  • 1965 - TD-15B increased to 120 hp, 5-speed gear drive made optional, with 96 drawbar hp
  • 1968 - Engine size increased to 407 ci
  • 1970 - Hp increased to 125 net and 99 drawbar
  • 1971 - TD-15B Custom Application added with 5-speed gear drive, 135 net hp and 106 drawbar hp
  • 1972 - TD-15C replaced TD-15B

Factory locations Edit


Specification Edit

See Infobox for basic details

  • Track frame: 6 rollers, 2 idlers
  • Track gauge: 74"
  • Track shoe width: 18"
  • Electric lights and starting

Variations and Options Edit

  • Optional track shoe widths: 22"

Serial Numbers Information Edit

Year Serial no. run
Serial no. run
Number Built Notes
1963 6001 7099 1099 Total calculated
1964 7100 8934 1835
1965 8935
1966 20377 21198 822
1967 21199 22081 883
1968 22082 22935 854
1969 22936 25429
1970 25430 25924 495
1971 25925 26473 549
1972 26474
1972 22082 22935 854 1972 22082 22935 854
Total built

Preservation Edit

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List of Preserved International TD-15B tractors
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Make + Model No. Reg No.
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Serial No. Build-Date Engine-Type/Make Owner
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Gallery Edit

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See also Edit

Collection related info
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