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 1974 Alfa Romeo GTV 2003

1974 Alfa Romeo GTV 2003 Alfa Romeo GTV-6 1981

1994 Chevrolet Tahoe 1995 Chevrolet V10 1987 Chevrolet V1500 Suburban 1991 Chevrolet V2500 Suburban 1991 Chevrolet V3500 1991 GMC C1500 1988

2015 INFINITI QX70 2015

2012 BMW 1 Series M 2011 BMW 128i 2008

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 1974 Alfa Romeo GTV 2003ACDelco 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