41-121 ACDelco Iridium Spark Plug, 1-pk v419327-v419326-v381757-v314788-v314786-v314785-v314784-v381756-v448778-v448776-v391546-v315093-v494500-v494478-v388493-v388494-v416184-v416185-v389523-v389522-v389521-v389518-v310472-v302860-v302861 2015 INFINITI QX70 2015

2015 INFINITI QX70 2015

1978 GMC C35/C3500 Pickup 1971 GMC C3500 1979

2012 BMW 1 Series M 2011 BMW 128i 2008

1985 Cadillac Series 60 Fleetwood 1964 Cadillac Series 62 1964 Cadillac Series 75 Fleetwood 1964 Cadillac Seville 1976

41-121 ACDelco Iridium Spark Plug, 1-pk v419327-v419326-v381757-v314788-v314786-v314785-v314784-v381756-v448778-v448776-v391546-v315093-v494500-v494478-v388493-v388494-v416184-v416185-v389523-v389522-v389521-v389518-v310472-v302860-v302861 2015 INFINITI QX70 2015ACDelco Iridium Spark Plug offers better engine idle stability and smoother performance Allows for smaller, more efficient electrode designed for improved cold starting and quicker acceleration Fine wire electrode helps improve ignition of the fuel and burns away carbon deposits on the tip of the plug as they form, to help improve fuel economy Includes 1 spark plug per package