Perfect Fit for Your Engine: Choose between M12x1.25 or M14x1.25 inserts; fits gasoline, diesel engines, and generators. Prevent failures caused by loose or detached spark plugs.
12Mm X 1.25 Helicoil Kit, m12x1.25 Spark Plug Thread Repair kit 12 Insert m...
Helicoil 5544-12 Thread Repair Kit, 12mm x 1.50 NF
Helicoil 5543-12 Thread Repair Kit, 12mm x 1.25 NF
12Mm X 1.25 Helicoil Kit, m12x1.25 Spark As picture show, show
