How old is my Briggs & Stratton engine?
The Code number on the Briggs & Stratton engine indicates the exact date it was manufactured. This system provides an easy way to determine the manufacture date of your engine.The first two digits (99) denote the year of manufacture. In this case it is 1999.
The next two digits (01) are the month of the year, which is January.
The following two digits (15) are the day of the month. In this case the 15th.
The final two digits designate the plant and assembly line.
The following is an example of interpreting date Code 99011556:
Therefore, this engine was produced on January 15, 1999.