If you're shopping for new tires for your vehicle, you've probably come across the term "DOT number." But what exactly is a DOT number, and why is it important to consider when buying tires? Let us explain.
What is a DOT Number?
The DOT number is a code that's stamped onto the sidewall of every tire sold in the United States. The acronym stands for "Department of Transportation," the department that regulates all transportation throughout the country. The DOT number consists of several digits and letters, and it tells you when the tire was manufactured and who made it.
Why Is a DOT Number Important?
The DOT number is important for several reasons. First and foremost, it's a way to trace the tire back to the manufacturer in the event of a recall. If a tire manufacturer discovers that a particular batch of tires is defective, they can use the DOT number to identify the specific tires that are affected and recall them.
Second, the DOT number can help you determine the age of the tire. Tires have a limited lifespan, and as they age, their performance can deteriorate, leading to potential safety hazards. The first two numbers of the DOT number represent the week of manufacture, and the last two digits represent the year. For example, if the first two digits are "33," that means the tire was manufactured in the 33rd week of the year, and if the last two digits are "20," that means the tire was manufactured in 2020. Keep in mind that many tires only display the age on one side of the tire!
Next time you go shopping for tires, make sure to check the DOT number. While a tire one or two years old is acceptable as a new tire, no new tire should exceed 4 or 5 years. As for used tires, it would be advisable to stay under 7 or 8 years, depending on the condition.
We hope this article has provided you with useful information about the DOT number on a tire. If you have any further questions, please don't hesitate to contact us. Our knowledgeable staff would be happy to help.