Spark Plug Thread Repair Kit. This is a used kit.
12x Helicoil 14mm Spark Plug Thread Repair Inserts #R513 14- 1.25mm Reach 7/16"
12x Helicoil 10mm Spark Plug Thread Repair Inserts #R474-4 M10x1.0mm 1/2" Reach
12x Helicoil 14mm Spark Plug Thread Repair Inserts #R512 14- 1.25mm 3/8" Reach
Napa x Stanley Helicoil Thread Spark Plug Port Repair Kit M14x1.25 770-3223
Helicoil 14mm Spark Plug Repair Kit Part No. 5523-14
12Mm X 1.25 Helicoil Kit, m12x1.25 Spark Plug Thread Repair kit 12 Insert m...
