Where is DOT Number on Trailer Tire and How to Read It

Published 11/29/2019

Question:

I looked for the DOT Tire ID Number like on my car but the only number by the DOT is 84. am I looking at it wrong or something?

asked by: Steven

Expert Reply:

What size tire do you have? There should be a 4 digit number on the tire after DOT.

When reading the DOT number on your existing tire, you will want to look at the last four digits of the number (if there are more than 4), not necessarily the numbers or letters immediately following "DOT". There may be some letters and numbers between "DOT" and the date code.

I recommend checking your tire again to see what the last four digits are of the DOT code. This should be four numbers, the first two indicating the week and the last two referencing the year. For example, if the last four digits are "5107", this means the tire was manufactured during the 51st week of the year 2007.

expert reply by: Jameson C