International Harvestor Id-9 Serial Numbers: Software

Contents Model history For Company history, see.The and replaced the unstyled. The new models continued the styling theme introduced in 1938 on the big crawler. All of the new International crawlers had engine side screens with horizontal silver stripes, matching three silver grille bars dividing sections of red cross bars. The T-9 looked almost identical to the, except scaled up. The main visual clue from a distance is the presence of two top track idlers on the T-9/TD-9 vs.

• International Harvester Id-9 Serial Numbers: Software Free

One on the T-6/TD-6. Instead of the 6-cylinder gasoline engine of the T-35, the T-9 used a new 335 ci 4-cylinder gasoline engine, governed at 1400 rpm, with a 5-speed transmission. This engine and transmission were shared by the wheel tractors. In 1940 the T-9 competed with the and but was more powerful than both.

International dropped the T-9 in 1956.The TD-9 used a diesel version of the 335 ci 4-cylinder of the T-9 instead of the 414 ci diesel of the TD-35. When it introduced the TD-9, International was trying to compete with the and so it designed a very similar tractor.

Both tractors were the same size and powered by 4-cylinder diesel engines running at 1,400 rpm with 5-speed transmissions. Caterpillar used its starting system while the International started on gasoline and then switched to diesel. The basic International was crank started with an electric starter optional. In 1940 the TD-9 had a slightly larger engine than the D-4, 335 ci vs. 312 ci, and developed slightly more power, 44 vs. The only other tractor in this class was the, which developed 46 belt hp from a 298 ci 6-cylinder diesel running at 1,400 rpm.

International Harvester Id-9 Serial Numbers: Software Free

The Cletrac had only a 3-speed transmission. In 1947 brought out its new, the most powerful tractor to date in this class with 48 belt hp.

Caterpillar increased the engine size of the D-4 to 350 ci, boosting it to 48 belt hp also. International responded in 1951 with a small upgrade to the TD-9 that developed 47 belt hp. About the same time the tractor lost its engine side screens and silver bars in the grille.

In 1955 Caterpillar went to 59 hp, Oliver to 57 hp, and Allis-Chalmers to 61 hp. Clearly the TD-9 was falling behind its competition so, in 1956, International brought out the revised.Timeline. 1940 - International T-9 and TD-9 replaced the McCormick-Deering T-35/TD-35. 1951 - TD-9 power increased slightly. 1956 - TD-9 Series 91 with larger engine replaced the original TD-9Model lineupSee the following articles for detailed specifications.Factory locations Serial Numbers Information YearSerial no. RunstartSerial no.

International Harvester McCormick-Deering No.