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|Electrode Core Material:||Copper|
|Electrode Tip Material:||0.7mm Iridium|
|Ground Strap Quantity:||1|
|Insulator Type:||Purified Alumina|
|Manufacturer Heat Range:||16|
|Thread Diameter:||14 mm|
|Tip Configuration:||0.7mm Iridium|
|Type:||Iridium Long Life|
|Wrench Diameter:||5/8 in|
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Q:what is the life span/when do you need to change them?
A:The Denso SKJ16CR-L11 Iridium Long Life Spark Plug -Part No. 3396 is an extra long-life Iridium plug. Specification: .7 mm. diameter center electrode with platinum tipped ground, that is capable of up to 120,000 miles of service. For compatibility of this part with your vehicle, please provide the vehicle year, make, model and engine type. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.