How do you tell the age of a tire with serial # 31LL7842. It is a 4.75-5.00x18 Kelly Springfield Tire?

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  • Dan B
    Lv 7
    8 months ago

    Can't tell from that serial number.  The date of manufacture is the last 4-digit  number at the end of the DOT code on the side wall.  The first two digits is the week of the year, the last two is the year. that the tire was manufactured.

  • 9 months ago

    You should cut it in half and look at the rings and count them.  Oh, wait, that is for trees.  

  • Anonymous
    9 months ago

    That tire was made March 1st.  LL = 2019

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