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2003 Cadillac CTS - Spark Plugs

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Denso Iridium Power Spark Plug - 5304

Part #:: 5304
Line:: DEN

1 Year Limited Warranty

Metallurgy: Iridium

Center Electrode Tip Material: Iridium

Heat Range: 20

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NGK Iridium Plug Number BKR6EIX Spark Plug - 6418

Part #:: 6418
Line:: NGK

1 Year Limited Warranty

Metallurgy: Iridium

Service Number: BKR6EIX

Center Electrode Tip Material: Iridium