2TIN (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 identi- fication mark
3. Two-digit code: Tire size 4. Three-digit code: Tire type code
(Optional)
5. Four numbers represent the week and year the tire was built. For example, the
numbers 3103 means the 31st week
of 2003. If these numbers are missing,
then look on the other sidewall of the
tire.
3Tire ply composition and material
The number of layers or plies of
rubber-coated fabric in the tire.
Tire manufacturers also must indicate the materials in the tire, which include
steel, nylon, polyester, and others.
4Maximum 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 per-
missible inflation pressure.
5Maximum load rating
This number indicates the maximum
load in kilograms and pounds that can
be carried by the tire. When replacing
the tires on the vehicle, always use a
tire that has the same load rating as the
factory installed tire.
6Term of “tubeless” or “tube type”
Indicates whether the tire requires an
inner tube (“tube type”) or not (“tube-
less”) .
7The word “radial”
The word “radial” is shown, if the tire
has radial structure.
8Manufacturer or brand name
Manufacturer or brand name is shown.
Example
8-32Maintenance and do-it yourself
