A Core deposit is a form of deposit you pay until returning your old part. If you don't have the core at the time of purchase, you must pay the core charge. That charge is refunded to you when you return the core.

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NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability.
Seat TypeFlat
Manufacturer Heat Range8
Ground Electrode Tip DesignTaper Cut
Center Electrode Tip MaterialIridium
Ground ConfigurationStandard
Gap Size.032
Insulator Height55.00
Ground Electrode Quantity1
Ground Electrode Core MaterialNickel Core
Thread Diameter14.00
Center Electrode Core MaterialCopper Core
Gap Size0.032
Hex Size13/16
Hex Size13/16"
Part Number6684
Line CodeNGK
TerminologySpark Plug
For warranty information please contact Auto-Wares.