Denso (4504) PK20TT Platinum TT Spark Plug, (Pack of 1)

Twin-Tip design enables faster flame propagation for more complete combustion. DENSO pioneered the use of platinum in spark plug manufacturing. To maximize the longevity and enhance the durability of the spark plug, DENSO applied platinum to both the center and ground electrodes. Platinum offers superior resistance to erosion and corrosion enabling DENSO to create a spark plug capable of consistent performance.Five rib insulator prevents flashover