Tyre Age Calculator
How to Find the Age of a Trailer Tyre
Every tyre has a build date printed on the sidewall. This is known as the DOT date code.
Look for a four-digit number near the DOT letters on the sidewall.
- The first two digits are the week of the year it was made.
- The last two digits are the year of manufacture.
Use the Smarter Towing Tyre Age Calculator
Find the last 3 or 4 digits after "DOT" on your tyre sidewall. Example: DOT XXXX XXX 4523
Learn more about tyre safety and maintenance →