TFC8313 Chrysler tool part number or first time repairs on Chrysler head bolts that have a Starting thread depth of 21mm. The distance from 1 head bolt to the next should be 106mm or 4.172" inches...
This insert works with the 5215 kit. For more info on Time Sert thread repair kits and inserts, you can refer to their TIME-SERT products pdf, which provides a SAE and Metric kit info and a partial
TIME SERT replacement insert that comes in the Big Sert 4800 BS universal metric head bolt thread repair kit 12x1.5. Also used as an optional size with the 5215 Big Sert kit.