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Serial Number

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Tesla serial numbers are 11 digits and alphanumeric, and are often found affixed to Tesla products via a label or engraving.

G14974655Courtesy of TESLA, INC.

Using the above serial number (T12J000683) as an example, Tesla serial numbers can be decoded in the following way:

Digit 1 

Manufacturer
= Tesla

Digits 2-3 

Year of Manufacture
12  = (2012, 2013, etc.)

Digit 4 

Month of Manufacture
= (A is January, B is February, etc.)

Digits 5-11 

Production Number
000683  = (000683 is the 683rd part with that part number)

Therefore, T12J000683  was manufactured by Tesla in October, 2012 and was the 683rd part with that part number.