1. Locate the chassis number. It is usually a 17-digit number stamped on a metal tag attached to the frame of the truck.
2. Take the first character in the chassis number. For International trucks, the first character in the chassis number represents the year of manufacture.
3. Match the first character with the corresponding year. Here is the list of first character and the corresponding year:
| First Character | Year |
|---|---|
| A | 1950 |
| B | 1951 |
| C | 1952 |
| D | 1953 |
| E | 1954 |
| F | 1955 |
| G | 1956 |
| H | 1957 |
| I | 1958 |
| J | 1959 |
| K | 1960 |
| L | 1961 |
| M | 1962 |
| N | 1963 |
| O | 1964 |
| P | 1965 |
| Q | 1966 |
| R | 1967 |
| S | 1968 |
| T | 1969 |
| U | 1970 |
| V | 1971 |
| W | 1972 |
| X | 1973 |
| Y | 1974 |
| Z | 1975 |
| 1 | 1976 |
| 2 | 1977 |
| 3 | 1978 |
| 4 | 1979 |
| 5 | 1980 |
| 6 | 1981 |
| 7 | 1982 |
| 8 | 1983 |
| 9 | 1984 |
| A | 1985 |
| B | 1986 |
| C | 1987 |
| D | 1988 |
| E | 1989 |
| F | 1990 |
| G | 1991 |
| H | 1992 |
| I | 1993 |
| J | 1994 |
| K | 1995 |
| L | 1996 |
| M | 1997 |
| N | 1998 |
| O | 1999 |
| P | 2000 |
| R | 2001 |
| S | 2002 |
| T | 2003 |
| U | 2004 |
| V | 2005 |
| W | 2006 |
| X | 2007 |
| Y | 2008 |
| 1 | 2009 |
| 2 | 2010 |
| 3 | 2011 |
| 4 | 2012 |
| 5 | 2013 |
| 6 | 2014 |
| 7 | 2015 |
| 8 | 2016 |
| 9 | 2017 |
| A | 2018 |
| B | 2019 |
| C | 2020 |
| D | 2021 |
| E | 2022 |
_Note: _This list only includes model years up to 2022._
