How Can I Tell How Old My Tires Are?

Thursday, July 22, 2010 by Roger Laughlin

How can I tell how old my tires are? The good news: it's very easy to find out! On the sidewall of your tire you will see a DOT Identification Number and the last four digits of the number will reveal the week and year that the tire was actually built.

Example: Post-2000 Production Tire

DOT Code Example


This tire was manufactured during the 51st week of 2007 (LMLR5107).


Example: Pre-2000 Production Tire

D.O.T. Code Example

This tire was manufactured during the 40th week of the 8th year of the decade (DFM408).

For safe operation, the current industry recommendation is to run your tires no longer than 6 years once they have been placed into service no matter how good they appear to be! 

For more detailed information on how to Determine the Age of a Tire or any other tire-related subjects-, please visit the Tire Tech section of our web site at www.tirerack.com

Comments on How Can I Tell How Old My Tires Are?

Tuesday, March 20, 2012 by Terry Nation:
My tires have the following number embossed on the sidewall: 001BD777. Does that give the date of manufacture?

Thanks.
Sunday, March 3, 2013 by Chris Beauvoisin:
my Avons show the code 4E032 which suggests March 2002 but I have some reason to suspect 1992. Which would be correct please? They look near new.
Tuesday, March 5, 2013 by Roger:
Based on the information you have provided, the tire was produced during the 3rd week of 1992. I hope this helps!

If you have any other questions or would like to place the order in person, please feel free to contact me at 1-800-428-8355, Ext. 4627. I am normally at the Tire Rack on Monday, Wednesday, and Friday from 8:00am to 5:00pm EST, and from 11:00am to 8:00pm EST on Tuesday's and Thursday's, plus every other Saturday from 9:00am to 4:00pm EST.

Best regards,

Roger
Tuesday, March 5, 2013 by Brigitte:
Here's the DOT information on my tires:
M33V ALHX
Am I to guess that this is the 3rd month of 2003 according to your guidelines?
Wednesday, March 6, 2013 by Roger:
The information you have provided appears to be incomplete. Could you please supply the complete D.O.T. number?

Thanks,

Roger
Wednesday, March 20, 2013 by Konner:
Hi, I just bought a 1999 Pontiac Grand Prix and when I test drove it there was a really loud groaning sound that got louder as I drove. There was a bad wheel bearing and the owner had it replaced shortly after I test drove it. I bought the car and the noise is still there. He did replace it because before the traction control wouldn't stay on and now it does. I thought that maybe it's the tires. I went out and wrote down the code. Here they are:

Right Rear-- DOTANX0TJ11 (THIS IS THE SAME AS THE RIGHT FRONT)

Left Rear-- DOTANX0TJ111809

Left Front-- DOTANX0TJ111609

I don't get the code how to date these since it doesn't follow the formula. They all are BFGOODRICH Traction T/A. Please help. Thanks
Friday, March 22, 2013 by Roger:
Unfortunately not, the code will start with D.O.T. and then it will be followed by a series of letters and numbers as shown above with the last 3 or 4 numbers being the manufacturer date.

If you have any other questions or would like to place the order in person, please feel free to contact me at 1-800-428-8355, Ext. 4627. I am normally at the Tire Rack on Monday, Wednesday, and Friday from 8:00am to 6:00pm EST, and from 10:00am to 8:00pm EST on Tuesday's and Thursday's, plus every other Saturday from 9:00am to 4:00pm EST.

Please note: If replying to this email, please be sure to include the full contents of this message in your reply. This will allow me to respond more accurately and promptly to your message.

Best regards,

Roger
Sunday, June 2, 2013 by bob palmer:
i have supreme si p185/80r13 905 m+s tires on my car i got them 10 or 15 years ago and they are still like new the only numbers on them are 31163 ur bm 17202 outside of removing the tire from the rim how can i find out just how old they really are. i drive the car in parades and car show and sometimes across the state for the end of the year group outing. by now they must be ready to replace but then they are not hard and they still look and feel soft. but then again they may be internally going bad.
Tuesday, June 4, 2013 by Roger:
Unless you can find the D.O.T. code on the tire (it can be on either side of the tire and rarely both), it will be impossible to find the manufacturing date. One thing I can tell you for sure is, those tires are no longer road worthy and could fail at any time!

If you have any other questions or would like to place the order in person, please feel free to contact me at 1-800-428-8355, Ext. 4627. I am normally at the Tire Rack on Monday, Wednesday, and Friday from 8:00am to 6:00pm EST, and from 10:00am to 8:00pm EST on Tuesday's and Thursday's, plus every other Saturday from 9:00am to 4:00pm EST.

Please note: If replying to this email, please be sure to include the full contents of this message in your reply. This will allow me to respond more accurately and promptly to your message.

Best regards,

Roger
Wednesday, November 20, 2013 by Jim Campbell:
Just bought new tire with this Dot AO37 does that mean the tire was made in 2007?? I am told when that old should use on a Camper>
Wednesday, November 20, 2013 by Roger:
Based on the code you supplied the tire was actually manufactured in the 3rd week of 1997 and is no longer road worthy. Sorry for the bad news!

If you have any additional questions or would like to place the order in person, please feel free to contact me at 1-800-428-8355, Ext. 4627. I am normally at the Tire Rack on Monday, Wednesday, and Friday from 8:00am to 6:00pm EST, and from 10:00am to 8:00pm EST on Tuesday's and Thursday's, plus every other Saturday from 9:00am to 4:00pm EST.

Best regards,

Roger
Thursday, March 20, 2014 by Les:
I stored 5 tires off my Chevy Silverado. LT 245/75 R16, DOT 1001 Firestone Steeltex Radials. They have been stored in a dark, dry, place since 2005. Only 10,000 miles on them. Are they still good to go?
Friday, March 21, 2014 by Roger:
Based on the information you have supplied, your tires were manufactured during the tenth week of 2001 and are well past their age out date of the tenth week of 2007 and should not be returned to service.

Sorry for the bad news!

If you have any additional questions or would like to place the order in person, please feel free to contact me at 1-800-428-8355, Ext. 4627. I am normally at the Tire Rack on Monday, Wednesday, and Friday from 8:00am to 6:00pm EST, and from 10:00am to 8:00pm EST on Tuesday's and Thursday's, plus every other Saturday from 9:00am to 4:00pm EST.

Best regards,

Roger

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