Iridium Platinum Spark Plugs 4 Pack Fits for 2011-2015 91039, IFR7X7G, 41-121
[Reference Number]: 91039, IFR7X7G, 55576026, 55585517, 41-121, AI3922, XP3922, XS3922. [Exceptional Fuel Efficiency]: Our sparkplugs feature a 0.6mm finewire iridium centerwire tip design, coupled with advanced laser welded technology.