DESCRIPTION
Champion, QL77JC4, Marine Inboard/Stern Drives Spark Plug, Stock # 828-1, For Mercruiser & OMC, Carded.
FEATURES
Champion Copper Plus Dependable Performance as the OE replacement spark plug Provides long life with the copper core center electrode Allows accurate control of heat range Optimize performance and longevity RFI & EMI suppression to not interfere with modern ignition systems