| Model | Year | Serial Number Range | |-------|------|----------------------| | Farmall Cub | 1947 | 501 – 1000 | | Farmall Cub | 1950 | 61,305 – 82,100 | | Farmall H | 1939 | 501 – 1473 | | Farmall H | 1953 | 391,801 – 396,167 | | Farmall M | 1939 | 501 – 4750 | | Farmall M | 1952 | 221,915 – 233,504 | | IH 350 | 1956 | 2501 – 17021 | | IH 656 (Gas) | 1965 | 501 – 12500 | | International 1066 | 1971 | 7101 – 15000 |
The casting code format generally appears as . IH Year Letter Codes (1931 – 1954) A = 1931 B = 1932 C = 1933 D = 1934 E = 1935 F = 1936 G = 1937 H = 1938 I = 1939 J = 1940 K = 1941 L = 1942 M = 1943 N = 1944 O = 1945 P = 1946 Q = 1947 R = 1948 S = 1949 T = 1950 W = 1951 (Note: U and V were skipped) X = 1952 Y = 1953 Z = 1954 IH Year Letter Codes (1955 – 1975) The cycle repeated with new letters starting in 1955: A = 1955 B = 1956 C = 1957 D = 1958 E = 1959 F = 1960 G = 1961 H = 1962 J = 1963 (Note: I was skipped) K = 1964 L = 1965 M = 1966 N = 1967 O = 1968 P = 1969 R = 1970 (Note: Q was skipped) S = 1971 T = 1972 U = 1973 V = 1974 W = 1975
If you’ve recently acquired an old International Harvester (IH) or Farmall tractor, or you’re looking to restore a family heirloom, the first thing you need is its "birth certificate"—the serial number. Unlike modern cars with standard VINs, vintage tractors use unique serial numbers to pinpoint their exact year of manufacture and factory origin. Where to Find Your Serial Number International Harvester Tractor Serial Number Table-
Before using a , you must locate the original serial number plate on your tractor. IH was consistent with these locations, though they varied by age and model type.
Take a moment to locate that number on your own tractor. Share your findings and pictures with the community to help preserve the legacy of these legendary machines. | Model | Year | Serial Number Range
If you have a Farmall H with serial number FBH 150000 , and the table states that 1943 started at 100001 and 1944 started at 160000, your tractor was manufactured in 1943 .
The serial number can be found on various locations on the tractor, including: Where to Find Your Serial Number Before using
(Note: The number listed represents the tractor built at the beginning of that calendar year. If your serial number falls between two listed numbers, your tractor was built during the year of the lower number.) 1. The Classic Farmall Letter Series Production Year Farmall A (Starting No.) Farmall H (Starting No.) Farmall M (Starting No.) 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 2. The Super Series Transition Models Production Year Super A (Starting No.) Super H (Starting No.) Super M (Starting No.) 1947 1948 1949 1950 1951 1952 1953 1954 3. The Popular 66-Series Powerhouses (1971–1976)
Look on the main transmission case housing or the engine block wall on the left side.
| Serial Number Range | Year Produced | | :--- | :--- | | FAA - 501 | 1939 | | FAA - 40555 | 1940 | | FAA - 100001 | 1941 |