NGK extreme life plug. By using the highest platinum content in the industry, NGK has created an
extremely long life spark plug. Laser welded platinum tip on center electrode and platinum tip on the
ground electrode. The center electrode is taper cut which aids in focusing the spark while reducing
the voltage necessary to start the combustion process, this will provide better throttle response,
improve efficiency and allow a smoother idle. Stainless steel washer reduces plug self-backing.
Extra Long Life Double Platinum Resistor Plug
14mm Thread Size, 19mm (3/4") Reach, 5/8" (16mm) Hex Size, Resistor, .032" (0.8mm) Gap.