Kumho will not sell or rent your contact information to third parties.Please enter your contact information and DOT Code(s) below and select "Submit." Each online submission form allows for up to 8 different DOT Codes to be entered.We recommend: All tires (including spare tires) that were manufactured more than ten years ago should be replaced with new tires, even if they appear to be usable from their external appearance and if the tread depth may have not reached the minimum wear out depth. Experts say that you must check your tire pressure at least once a month and before going on a long trip.The DOT code is an alphanumeric code that appears on the sidewall of the tire. Department of Transportation, it identifies where a tire was manufactured, specific characteristics about the tire and its age.This code is sometimes referred to as a serial number. The code starts with the DOT designation, followed by a series of letters and numbers.My primary purpose in these articles is to help people understand tires and thereby reduce the risks we all face every day.
For most tires, this expiration date should be six years from the date of manufacture.The evidence is clear: tires should have an expiration date.Older tires are substantially more likely to fail than newer ones.This means there will be a period of time where there will be both 2 digit and 3 digit plant codes.To make the transition easier, NHTSA has reserved a series of 3 digits codes starting with the number "1" (One) followed by the previous 2 digit codes.