Tire Age Calculator (DOT Code) | Check Tire Manufacture Date
Determine your tire's manufacturing date and current age by entering the last 3 or 4 digits of the DOT code found on the sidewall. Crucial for tire safety.
Tires degrade over time due to exposure to the elements and oxidation, even if they have ample tread depth. Knowing your tire's manufacturing date is essential for safety. Most manufacturers recommend replacing tires after 6 to 10 years, regardless of tread wear.
The DOT (Department of Transportation) code on a tire's sidewall includes a date code: - **Post-2000:** The last four digits indicate the week and year of manufacture (e.g., '4519' means the 45th week of 2019). - **Pre-2000:** The last three digits were used. The first two are the week, and the last is the year of that decade (e.g., '322' could be the 32nd week of 1992). This calculator assumes the 1990s for 3-digit codes.
This calculator helps you decode these numbers to find out how old your tires are.
- Locate the DOT code on your tire's sidewall. It typically begins with 'DOT' followed by a series of letters and numbers.
- Identify the last 3 or 4 digits of the full DOT code. These digits represent the date code.
- Enter these 3 or 4 digits into the 'DOT Date Code' field in the calculator.
- Click the "Calculate Age" button.
- The results will display the tire's manufacturing week and year, and its current age.
- Pay attention to any warnings if the tire is over 6 years old.
This calculator provides an age estimate based on the DOT code. Always physically inspect tires for signs of aging, such as cracking in the sidewalls, regardless of calculated age or tread depth. Consult a tire professional if you have any doubts about tire safety.
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