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2
TIN (Tire Identification Number) for a
new tire (example: DOT XX XX XXX
XXXX)
1. DOT: Abbreviation for the “Depart-
ment Of Transportation”. The symbol
can be placed above, below or to the
left or right of the Tire Identification
Number.
2. Two-digit code: Manufacturer’s
identification mark.
3. Two-digit code: Tire size.
4. Three-digit code: Tire type code
(Optional).
5. Three-digit code: Date of Manufac-
ture.
6. Four numbers represent the week
and year the tire was built. For ex-
ample, the numbers 3103 means the
31st week of 2003. If these numbers
are missing then look on the other
sidewall of the tire.
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3
Tire ply composition and material
The number of layers or plies of rubber-
coated fabric in the tire. Tire manufactur-
ers also must indicate the materials in the
tire, which include steel, nylon, polyester
and others.
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4
Maximum permissible inflation pres-
sure
This number is the greatest amount of air
pressure that should be put in the tire. Do
not exceed the maximum permissible in-
flation pressure.
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5
Maximum load rating
This number indicates the maximum load
in kilograms and pounds that can be car-
ried by the tire. When replacing the tires
on the vehicle, always use a tire that has
the same load rating as the factory in-
stalled tire.
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6
Term of “tubeless” or “tube type”
Indicates whether the tire requires an in-
ner tube (“tube type”) or not (“tubeless”).
Example
WDI0396
8-38 Maintenance and do-it-yourself
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