Hello all,
I am having trouble deciphering the build date on a set of Cooper Tires. They are Discoverer AT3's and the only DOT markings I can find are in the attached photo and I am not able to decipher it.

Thank You for your assistance.

 

Looks like the attachment didn't attach.

 

Where can I find the date a tire was manufactured?
The date of manufacture is part of the serial number (DOT) which is located on only one side of each tire (the other side may have only a partial number or no number). The DOT is an 11-character number and looks like this: UP0RCNT1209. The date of manufacture for this DOT is the12th week of 2009 (1209). If the DOT ends in only three (3) digits (contains only 10 characters), the tire was manufactured before January 2000 and should be removed from service and scrapped because it is over 10 years old.


http://us.coopertire.com/Tire-Safety/FAQ.aspx

 

There is no number set like this either inside or outside on these tires. The closest is the photo I posted. The tires have to be at least 2008 year as that is the first review date I found using friend Google. I was looking for a similar to this one off my pickup and there is not one exactly like it on the Cooper Tires. This is for a BF Goodrich Long Trail truck tire. Picture came out upside down

 

Try it again

 

Look on the other side of the tire, the number you have pictured is not the date code.

 

^^ This. You will find another set of numbers added onto the end of the ones you posted on the other side of the tire.

 

X3. It's on there. Look harder. On the backside near the bead.

 

DOT # isn't the date code. Many manufacturers only put the date code on one side of the tire, so if you can't find it on one side, it is probably on the other side. I may be wrong, but recently more of them are finally putting the date code on both sides either as a matter of law or because they finally got some common sense.

 

Agreed with the many posts already. If it's not on the outside, it is on the inside. Continental does this as well (only marking one side)

 

I don't think I have ever seen all the data on the inside tires being hidden by the body before this weekend. It turns out all the DOT data on the inside of the tires was on the top of the tires hidden by the body. Rolled the beast forward about 3 feet and found the date stamp. Thanks to all who responded.

 

Strange random chance.

So how old are they?

 

From 0813 to 1014 After tie rods and ball joints and alignment I will probably go back to OEM tire. Original was Goodyear Wrangler RT/S AT at 225/75R15 although i think it has been discontinued.

 

I have a set of Toyo Open Country A/T on my '05 Liberty. I like them so far.

Hankook Dynapro AT/M load range C I used on my XJs. They wore like iron, but I had to cross-rotate them very often to try to keep the cupping down to a minimum.

Now that I think about it, two of the Hankooks did separate on the '87 XJ. They had the same date code. They were covered under the prorated warranty. The two that were made in a different week were OK.