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post #1 of 7 (permalink) Old 12-07-2018, 02:01 PM Thread Starter
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Tire Date Codes

Anyone know where the age Date Codes appear or how coded on Dunlop Direzza tires? Sorry, don't know exactly what model of the tire if that matters. This is pretty obvious on most tires with the WKYR 4 digit code in a circle but can't seem to find anything like that on these tires that on an Elise I am looking at .
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post #2 of 7 (permalink) Old 12-07-2018, 02:18 PM
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@Mphjr_lt - 49 CFR 574.5 requires a plant, manufacturer and date code on at least one sidewall. If you don’t see it on one side check the other . . . it’s there. A U.S. made Dunlop should have the plant code DA - your date code may be preceded by that.

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Last edited by Glen; 12-07-2018 at 02:33 PM.
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post #3 of 7 (permalink) Old 12-07-2018, 04:28 PM Thread Starter
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Actually I think these say Made in Thailand.
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post #4 of 7 (permalink) Old 12-07-2018, 05:05 PM
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Quote:
Originally Posted by Mphjr_lt View Post
Actually I think these say Made in Thailand.
Goodyear owns the Dunlop brand in North America. . . Goodyear’s Thailand plant code is 1NY. Sumitomo owns the Dunlop brand in Thailand with two plants there: 1VA and 1R8.

You can search NHTSA’s Product Information Catalog and Vehicle Listing for other codes. Their database seems buggy - I got different results when running the same query two times in succession.

The plant code isn’t all that important. . . your date code will be on a recessed panel with four distinct dies forming the four-digit date code. They’ll almost always be in a different font than the letters “DOT” and the plant code.

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Last edited by Glen; 12-07-2018 at 05:19 PM. Reason: add note about font
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post #5 of 7 (permalink) Old 12-07-2018, 06:33 PM Thread Starter
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Thanks. I don't have access to the car now but if and when I do, this helps.
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post #6 of 7 (permalink) Old 12-07-2018, 07:36 PM
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Chart here on the GGLC website with most of the plant codes:
GOLDEN GATE LOTUS CLUB - Tire Sidewalls

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Kiyoshi

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post #7 of 7 (permalink) Old 12-08-2018, 04:31 AM
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Chart here on the GGLC website with most of the plant codes:
. . .
That listing is 13 years old . . . one of the reasons why I linked to the source for the data at NHTSA.

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