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.
Pre-Gap Size.036
Gap Size.036
Insulator Height53.00
Gap Size0.036
Ground Electrode Quantity1
Thread Diameter14.00
Ground Electrode Core MaterialNickel Core
Center Electrode Core MaterialCopper Core
Hex Size5/8 in
Center Electrode Tip MaterialIridium
Ground ConfigurationStandard
Hex Size5/8
Manufacturer Heat Range6
Ground Electrode Tip DesignTaper Cut
Part Number2318
Line CodeNGK
TerminologySpark Plug
For warranty information please contact Auto-Wares.