BIG-SERT OVERSIZED REPAIR for use when a helicoil has failed
M14x1.25 BIG-SERT kit does not include inserts order separate
p/n 5141E Extended Version for Deep holes
For 3/4 reach washer seat spark plugs use insert 51407 search (B00IXQIQ9U)
Spark plug thread repair kit does NOT include inserts
M14X1.25 Extended Thread Repair Kit "OVERSIZED HOLES" For Spark plugs that have been previously repaired. The outside thread of the BIG-SERT is M18x1.5, the stripped hole should not be larger than 16.77mm or .660 inches. SPARK PLUG KITS DO NOT INCLUDE INSERTS