Hankook imprints the DOT number on the rim of your tire, as indicated in the diagram to the left. (This number is placed on one or both sides of the tire. Depending on which side of the tire is facing out, you may have to look on the inside area of the tire to locate the number.) Once you have located the DOT number, copy down the 10 to 12 characters that follow) These numbers/letters are needed to complete the DOT Registration Form on this Web site.
The DOT stands for the Department of Transportation, a government agency required to certify quality standards for vehicles. This DOT certification is branded on the sidewall of your tire, which certifies that it meets or surpasses the requirements of the DOT. The numbers/letters that follow the DOT mark represent the plant where the tire was manufactured, the size, pattern, brand, and the date of manufacture. Federal regulations encourage registration of each DOT number for every tire purchased.
Example: DynaPro AT P235/75R17
DOT: T7 - 9J - PCY - Y - 2503
The abbreviation DOT means the tire is certified to meet or exceed the principles of the Department of Transportation
Specifies where the tire was manufactured. T7 is one of four plants located in Korea and China.
Is the manufacturer's code for the size of the tire. This code is unique from size to size and may differ between manufacturers.
Is a two-digit code used by the manufacturer to determine the pattern of the tire. CY indicates the tire is our DynaPro AT RF08.
Refers to the brand of the tire. H designates the brand name of the tire to be Hankook.
Is a date code stamp. The first two figures represent the week, and the last two represent the year of manufacture.