So you're thinking of buying that used set of tires
at the swap meet or maybe you're looking at a used vehicle with what
appears to be a decent set of tires on them. The thing is you're not
sure of the age of those tires and whether those little cracks in the rubber sideway
are from hard use or simply age. Any number of reasons may prompt
you to wonder about the age of a tire but how can you tell?
Well, its actually not that difficult to
figure out when a tire was manufactured by reading its serial number
also known as the "Tire Identification
Code" off of the side of the tire and deciphering what these
numbers and letters mean.
Identification Codes is found on the sidewall of a tire and is a batch code that identify which week and
year the tire was produced and as a result what raw material was
batched into that process.
Requirements set forth by the U.S. Department of Transportation (DOT)
and the National Highway Traffic Safety Administration (NHTSA) states that the Tire Identification Code
has to have a combination of eleven or twelve letters
and numbers that identify the tire size, the location that the tire was manufactured,
the manufacturer's code, and the week and year the tire was manufactured.
On tires manufactured today, the week and year
in which the tire was manufactured is
within in the last four digits of the serial number, with the
2 digits used to identify the week a tire was manufactured
followed immediately by the 2 digits identifying the manufactured