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International TD-25C
International TD-25C 1975
International TD-25C, 1975
Model history
Model introduced 1968
Model discontinued 1978
Model status Discontinued
No. produced 3,474
Preceded by TD-30TC
Superseded by International TD-25E
Engine Specification
Engine make International
Engine model DTI-817C
Fuel type diesel
Power hp 310 net engine
Governed rpm 2100
Displacement cu in /(litre) 817 ci
No. of Cylinders 6
Bore in (mm) 5.375 in
Stroke in (mm) 6 in
Cooling system water
Naturally aspirated, Turbo or Supercharged turbocharged & intercooled
Transmission Details
Transmission type 2-speed power shift with torque converter and 2-speed planetary power shift in each track
Gearbox make International
Forward 4
Reverse 4
Drive crawler
General Data
Linkage Category drawbar
Tyre Sizes (std/options)
Front 22" tracks
Tractor Dimensions
Length (inches/metres) 206"
Width (inches/meters) 106"
Height (inches/meters) 101"
Weight (nominal) lb/kg 66224 lb (with dozer)
Wheelbase 84" gauge
Plow rating
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The Edrob/International TD-25C was a diesel engined crawler tractor built by the International Harvester company from 1968 to 1978.

Model historyEdit

For Company history, see International Harvester.

In 1968 the new 285 net hp International TD-25C replaced both the gear drive 280-hp TD-30 and the 320-hp torque converter TD-30TC. The engine of the TD-25C was turbocharged and intercooled for both transmissions but the reduced 1900 rpm dropped the power output to 285-hp. The standard transmission was the 4-speed syncromesh with 2-speed tracks of the TD-30. The optional transmission was a 2-speed power shift combined with a torque converter and 2-speed tracks. In 1975 the governed engine speed was increased to 2100 rpm, boosting the rated power to 310 net hp. The 285-hp TD-25C competed with the 268-hp Allis-Chalmers HD-21P, 270-hp Caterpillar D-8H, and 300-hp Komatsu D-155A. The uprated 310-hp International TD-25C competed with the 300-hp Caterpillar D-8K, 300-hp Fiat-Allis 21-C, and 320-hp Komatsu D-155A-1.

Timeline Edit

  • 1968 - TD-25C replaced TD-30 and TD-30TC
  • 1978 - TD-25E replaced TD-25C

Factory locations Edit

Specification Edit

See Infobox for basic details

  • Track frame: 7 rollers, 2 top idlers
  • Track gauge: 84"
  • Track shoe width: 22"

Variations and Options Edit

  • Optional track shoe width: 28"

Serial Numbers Information Edit

Year Serial no. run
start
Serial no. run
End
Number Built Notes
1968 501 800 300 Total calculated from serial range
1969 801 1165 365
1970 1166 1746 581
1971 1747 2018 271
1972 2019 2405 387
1973 2406
1974 5001 5128 128
1975 5129 5741 613
1976 5742 6052 311
1977 6053 6570 518
1978 6571
Total built 3474 Not including 1973 or 1978

Preservation Edit

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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

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External Links Edit

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