International TD-24 1955
International TD-24 Series 241 with optional 7-roller tracks, 1955
Model history
Model introduced 1955
Model discontinued 1959
Model status Discontinued
Preceded by International TD-24
Superseded by International TD-25 Series 250
Engine Specification
Engine make International
Engine model D-1091
Fuel type diesel
Power hp 190 net engine, 154 drawbar
Governed rpm 1400
Displacement cu in /(litre) 1091 ci
No. of Cylinders 6
Bore in (mm) 5.75 in
Stroke in (mm) 7 in
Cooling system water
Naturally aspirated, Turbo or Supercharged NA
Transmission Details
Transmission type 4-speed syncromesh, with 2-speed planetary power shift in each track
Clutch Rockford dual-plate dry disk
Gearbox make International
Forward 8
Reverse 8
Drive crawler
General Data
Linkage Category drawbar
Tyre Sizes (std/options)
Front 22" tracks
Tractor Dimensions
Length (inches/metres) 182"
Width (inches/meters) 102"
Height (inches/meters) 95"
Weight (nominal) lb/kg 41520 lb
Turning circle (nominal) inches/meters 24 ft
Wheelbase 80" gauge
Other info
Factories Melrose Park, Illinois, USA
Plow rating 20-14"
Nebraska Tests No. 529
Approximate Cost new in (year) $67920 (1959)
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The International TD-24 Series 241 was a diesel engined crawler tractor built by the International Harvester company from 1955 to 1959 in Melrose Park, Illinois, USA.

Model historyEdit

For Company history, see International Harvester.

The original 37,500 lb, 180 hp (130 kW) net, International TD-24 was the largest and most powerful crawler tractor on the market for its first few years of production. By early 1955 Allis-Chalmers and Caterpillar had caught and passed International with the 44,000 lb, 204 hp (152 kW), HD-21 and 40,310 lb, 185 hp (138 kW), D88 Series 13A. International responded in mid-1955 with the International TD-24 Series 241, with the engine speed increased to 1400 rpm for 190 hp (140 kW) net, and with the weight increased to 40,375 lb. At the same time the new Caterpillar D8E Series 14A went to 40,600 lb and 191 hp (142 kW). In 1957 Allis-Chalmers increased the HD-21 to 45,500 lb and 225 hp (168 kW). In 1958 International increased the engine rpm of the TD-24 to 1500, boosting the power rating to 202 net hp. The weight also went up to 41920 lb. International was temporarily ahead of Caterpillar (but not Allis-Chalmers) but only until Caterpillar brought out its new 235 hp (175 kW) Caterpillar D8H in 1959. International needed a new larger tractor and subsequently introduced the International TD-25 Series 250 in mid-1959.

Timeline Edit

  • 1955 - TD-24 upgraded to TD-24 Series 241
  • 1958 - TD-24 Series 241 power and weight increased
  • 1959 - TD-25 Series 250 replaced TD-24 Series 241

Factory locations Edit

  • Melrose Park, Illinois, USA

Specification Edit

See Infobox for basic details

  • Track frame: 6 rollers, 2 top idlers
  • Track gauge: 80"
  • Track shoe width: 22"

Variations and Options Edit

  • Optional track frame: 7 rollers, 2 top idlers
  • Optional track shoe width: 24"

Serial Numbers Information Edit

Year Serial no. run
Serial no. run
Number Built Notes
1955 8001 8792 792 Total calculated from serial range
1956 8793 9655 863
1957 9656 10330 675
1958 10331 10630 300
1959 10631
Total built 3630[1] Includes Torque Converter Drive

Preservation Edit

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

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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)

References / Sources Edit

  1. Klancher, Lee, International Harvester Photographic History, Motorbooks International, Osceola, Wisconsin, 1996

External Links Edit

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