DOT tire code
Thread Starter
Instructor
Joined: May 2013
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From: Fair Grove Missouri
DOT tire code
First let me say I have read and reread several sources and still I am confused. I do need your help from going crazy over this.
Installed new diamonback radials on the 61. Removed four BFG Silvertowns, 6.70/15 4 ply, tubeless, wide whitewalls.
(2) DOT CYNK C275512, CYNK C275173, and CYNK C275522. Are these three or four digit manufacture dates? The tires look and feel nearly new. The numbers have been triple checked. Any help to this number challenged forum member is truly appreciated. Thanks
Installed new diamonback radials on the 61. Removed four BFG Silvertowns, 6.70/15 4 ply, tubeless, wide whitewalls.
(2) DOT CYNK C275512, CYNK C275173, and CYNK C275522. Are these three or four digit manufacture dates? The tires look and feel nearly new. The numbers have been triple checked. Any help to this number challenged forum member is truly appreciated. Thanks
Last edited by sshort67; Sep 3, 2014 at 05:54 PM. Reason: adding photo
Race Director
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From: Bowling Green, Kentucky
From the BFG website: http://www.bfgoodrichtires.com/faq-d...559350FD6554C0
Based on this it appears the tires are from 1972-73 or 1982-83 time frame. If the 1990's they should have a triangle. From the Year 2000 on, they would have a two digit year code.
Larry
Based on this it appears the tires are from 1972-73 or 1982-83 time frame. If the 1990's they should have a triangle. From the Year 2000 on, they would have a two digit year code.
Larry
Last edited by Powershift; Sep 3, 2014 at 06:46 PM.
Team Owner
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From: Washington Michigan
Le Mans Master
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From: eastern NC
Steve, Rhino is correct, look a bit further along the sidewall and you should find another set of embossed numbers molded into the tire with four digits only, or ending in four digits.
http://www.tirerack.com/tires/tirete....jsp?techid=11
Of course I could be wrong, but I believe the number you've selected is the tire I.D. Number.
Good luck... GUSTO
http://www.tirerack.com/tires/tirete....jsp?techid=11
Of course I could be wrong, but I believe the number you've selected is the tire I.D. Number.
Good luck... GUSTO
Last edited by GUSTO14; Sep 3, 2014 at 08:12 PM.
Team Owner
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From: Middle TN by way of KY, OH, VA, IL, CA, FL, NY, SC, HI
I am probably incorrect on this one.
I thought that the OP was talking about new tires he put on his car.
Tires molded starting in 2000 had the four digit code, before that the three-digit code, but that may not go back as far as these tires appear to be possibly very old.
If your tires do not have a four digit code, in other words, built in this century, I would not recommend their use. New tires are cheap - fiberglass damage is not, and life is priceless.
I thought that the OP was talking about new tires he put on his car.
Tires molded starting in 2000 had the four digit code, before that the three-digit code, but that may not go back as far as these tires appear to be possibly very old.
If your tires do not have a four digit code, in other words, built in this century, I would not recommend their use. New tires are cheap - fiberglass damage is not, and life is priceless.
Team Owner
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From: Washington Michigan
Tires made between 1971 and 1999 had an 11-digit DOT number, and the last three digits were the date; 9 and 10 were the week, and 11 was the year. Beginning with 2000, it became a 12-digit number, and the last TWO digits were the year. 
Race Director
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From: Bowling Green, Kentucky
John:
I agree (gut feel) that 1982 (and 1983 for one of the tires) is probably the correct year. But I believe that it could also be 1972 (and 1973). Do you agree, or is there something that definitely tells you it is the 1980's time period??
Larry
I agree (gut feel) that 1982 (and 1983 for one of the tires) is probably the correct year. But I believe that it could also be 1972 (and 1973). Do you agree, or is there something that definitely tells you it is the 1980's time period??
Larry
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Thread Starter
Instructor
Joined: May 2013
Posts: 199
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From: Fair Grove Missouri
This has been very informative and thanks to all who have responded. I should have made it clearer the DOT numbers are from the takeoffs. As folks have said, the new radial tires are making driving much, much better. You folks are the best.
Team Owner
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From: Washington Michigan