Number to Decode Trailer Tire Date

Updated 04/26/2023 | Published 04/25/2023

Question:

How do I decode thr DOT number on a casle Rock ST 185/80R13. DOT JUFR XMT

asked by: William J

Expert Reply:

Are you asking for how to decode the date of your tire? A tire date code typically begins with the letters 'DOT', which indicates that the tire meets the minimum Department Of Transportation standards for tires sold in the US. The last 4 digits of the code should be all numbers, with the first two indicating which week of the year and the second two digits indicate the year the tire was constructed. For instance, if the last 4 digits were 4216, it would mean that the tire was manufactured in the 42nd week of 2016.

The DOT number is not a date code.

expert reply by: Jameson C