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
- 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
- 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