Repair stripped spark plug threads with 16 x 1.5mm threaded inserts. Repairs to use 14mm - 1/2in. re..

Spark plug terminal nut attaches to threaded head of spark plugs. Allows for use of High Performance..

NGK's Standard Plugs are Constructed for Longer Life and Optimum Performance. Trivalent Metal Platin..

NGK's Standard Plugs are Constructed for Longer Life and Optimum Performance. Trivalent Metal Platin..

NGK's Standard Plugs are Constructed for Longer Life and Optimum Performance. Trivalent Metal Platin..

NGK's Standard Plugs are Constructed for Longer Life and Optimum Performance. Trivalent Metal Platin..

NGK's Standard Plugs are Constructed for Longer Life and Optimum Performance. Trivalent Metal Platin..

NGK's Standard Plugs are Constructed for Longer Life and Optimum Performance. Trivalent Metal Platin..

NGK's Standard Plugs are Constructed for Longer Life and Optimum Performance. Trivalent Metal Platin..

NGK's Standard Plugs are Constructed for Longer Life and Optimum Performance. Trivalent Metal Platin..

NGK's Standard Plugs are Constructed for Longer Life and Optimum Performance. Trivalent Metal Platin..

Bosch Super Spark Plug has a Heavy Duty Yttrium-Enhanced Center Electrode with Copper Core Provides ..