One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal. Reduces radio frequency and engine interference, regulates spark plug energy and seals against compression pressures for long life
Double platinum point pad on center and ground electrode offer increased durability and consistent voltage demands to reduce wear on ignition system
100% Pure Copper Core results in cooler electrode temperature for enhanced durability and superior fouling resistance
Description
ACDelco GM Original Equipment 41-987 Double Platinum Spark Plug
