Looking for aftermarket parts to modify or upgrade your 1980 Cadillac Eldorado with spark plugs? At Tunersports.com we carry a huge selection of the top name brand performance spark plug parts and accessories.

OUT OF STOCK 3142NGK G-Power Series offers the performance and durability of platinum at a competitive price. Fine wire platinum tipped center electrode reduces required voltage for better starts, superior acceleration and increased fuel economy.... NGK G-Power Spark Plug Box of 4 (GR45GP) 1980-1981 Cadillac Eldorado Base / Biarritz / Cabriolet $41.29 |

OUT OF STOCK 7293The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX® the ideal choice for any performance enthusiast. Iridium's high melting point is perfectly suited to today's high-temperature engines, delivering outstanding acceleration, fuel efficiency and durability.... NGK Iridium IX Spark Plug Box of 4 (XR45IX) 1979-1980 Cadillac Eldorado Base / Biarritz / Cabriolet $55.51 |

OUT OF STOCK 4268NGK V-Power plugs feature a unique v-cut in the center electrode that directs the spark to the edge of the electrode, helping the spark develop more rapidly, increasing ignitability and reducing quenching.... NGK V-Power Spark Plug Box of 4 (GR45) 1980-1981 Cadillac Eldorado Base / Biarritz / Cabriolet $36.44 |
OUT OF STOCK 4536NGK V-Power plugs feature a unique v-cut in the center electrode that directs the spark to the edge of the electrode, helping the spark develop more rapidly, increasing ignitability and reducing quenching.... NGK V-Power Spark Plug Box of 4 (XR45) 1979-1980 Cadillac Eldorado Base / Biarritz / Cabriolet $36.44 |