International Harvester Tractor Serial Number Table- Work File

You cannot use the table if you cannot find the number. On International Harvester tractors, the location changed depending on the era:

| Model | Production Years | Starting Serial # | Ending Serial # | | :--- | :--- | :--- | :--- | | | 1939-1954 | 501 | 398,693 | | Farmall M | 1939-1954 | 501 | 724,861 | | Farmall Cub | 1947-1964 | 501 | 235,382 | | Farmall A | 1939-1947 | 501 | 117,764 | | Farmall B | 1940-1947 | 501 | 89,043 | | Farmall Super H | 1952-1954 | 501 | 29,346 | | Farmall Super M | 1952-1954 | 501 | 44,038 | | Farmall 300 | 1954-1956 | 501 | 16,849 | | Farmall 400 | 1954-1956 | 501 | 20,091 | International Harvester Tractor Serial Number Table-

Some models have the tag attached to the inside of the left-hand seat support. Red Power Magazine If the plate is missing, check the engine block You cannot use the table if you cannot find the number

The Ultimate Guide to International Harvester Tractor Serial Numbers Where to Find the Serial Number If the

Newer models often use a 17-character VIN-style serial number that includes manufacturer, plant codes, and model year indicators. Where to Find the Serial Number

If the plate is missing, look for dates cast directly into major metal components (transmission, engine block). They follow a Month-Day-Year Letter format. To find the year, add the letter's position in the alphabet to 1930 (e.g., A=1931 , I is skipped, J=1939 ). Serial Number Locations

| | Production Years | Serial Number Range | | --- | --- | --- | | H | 1940-1953 | 101-120,000 | | M | 1940-1952 | 201-50,000 | | MD | 1945-1952 | 101-20,000 | | 300 | 1953-1957 | 301-10,000 | | 400 | 1953-1957 | 401-8,000 | | 500 | 1953-1957 | 501-6,000 | | 700 | 1955-1958 | 701-4,000 | | 800 | 1955-1958 | 801-3,500 |