Tractor Serial Number Table- - International Harvester

For collectors, restorers, and farmers who still trust the iron of yesteryear, few names carry as much weight as International Harvester (IH) . From the legendary Farmall letter series to the powerful 06 and 56 series, IH tractors are cornerstones of agricultural history. However, buying or restoring one of these machines presents a common puzzle: What year was my tractor built, and what factory produced it?

The answer lies in a single, stamped line of digits. But without the proper key, that serial number is just a string of metal stamps. That key is the . International Harvester Tractor Serial Number Table-

Whether you are verifying a barn find for a sale, ordering a water pump for a 1950 Super C, or simply satisfying your curiosity, keep a printed copy of the appropriate serial number table in your shop. Every tractor has a soul; the serial number is its birth certificate, and the table is the only way to read it. For collectors, restorers, and farmers who still trust

If the table says 1947 – 501 and 1948 – 25001 , a tractor with serial number 15000 was built in 1947. The answer lies in a single, stamped line of digits

Check the left clutch housing of your IH tractor today. Write down that 6-digit number. Now compare it to the table above—you might discover your tractor is far older (or rarer) than you thought.

| Model | Year | Starting Serial Number | Year | Starting Serial Number | | :--- | :--- | :--- | :--- | :--- | | | 1939 | 501 | 1947 | 199,896 | | (Super A) | 1947 | 250,001 | 1954 | 328,501 | | Farmall B / BN | 1939 | 501 | 1947 | 116,501 | | Farmall C / Super C | 1948 | 226,501 | 1951 | 280,165 | | Farmall H | 1939 | 501 | 1953 | 392,292 | | Farmall M / MV | 1939 | 501 | 1952 | 269,634 | | Farmall 300 | 1955 | 501 | 1956 | 33,189 | | Farmall 350 | 1956 | 501 | 1958 | 34,301 | | Farmall 400 | 1954 | 501 | 1956 | 38,551 | | Farmall 450 | 1956 | 501 | 1958 | 18,144 | | IH 504 | 1963 | 501 | 1965 | 11,775 | | IH 606 | 1962 | 501 | 1967 | 26,619 | | IH 706 (Gas) | 1963 | 501 | 1967 | 71,138 | | IH 806 | 1963 | 501 | 1967 | 44,209 | | IH 826 | 1968 | 8,621 | 1970 | 15,517 | | IH 856 | 1968 | 9,581 | 1971 | 19,718 | | IH 966 | 1971 | 10,208 | 1976 | 41,911 | | IH 1066 | 1971 | 10,208 | 1976 | 49,243 | | IH 1466 | 1971 | 10,208 | 1976 | 18,441 | | IH 1566 | 1974 | 8,799 | 1976 | 11,028 |