s
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 iden-
tification mark
3.
Two-digit code: Tire size
4.
Three-digit code: Tire type code (Op-
tional)
5.
Three-digit code: Date of Manufacture
6.
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 side-
wall of the tire.
s
3
Tire ply composition and material
The number of layers or plies of
rubber-coated fabric in the tire.
Tire manufacturers also must indi-
cate the materials in the tire, which
include steel, nylon, polyester, and
others.
s
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 inflation pressure.
s
5
Maximum 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.
s
6
Term of “tubeless” or “tube type”
Indicates whether the tire requires an
inner tube (“tube type”) or not
(“tubeless”).
s
7
The word “radial”
The word “radial” is shown, if the tire
has radial structure.
s
8
Manufacturer or brand name
Manufacturer or brand name is
shown.
Other tire-related terminology:
In addition to the many terms that are
defined throughout this section, In-
tended Outboard Sidewall is (1) the side-
wall that contains a whitewall, bears
Example
SDI1607
Maintenance and do-it-yourself
8-39
w
—
—
05/15/09—pattie
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