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CONTENTS
Find Your Plugs
Reference
Part Number Chart
IRIDIUM POWER
Features
Structure
Linenup
Specifications
IRIDIUM TOUGH
Features
Structure
Linenup
Specifications
IRIDIUM PLUS
Features
Specifications
IRIDIUM POWER
Features
Structure
Linenup
Specifications
Basic_Knowledge
Plugs Configrations
 Plugs Specifications
Q & A
IRIDIUM POWER Q&A
IRIDIUM TOUGH Q&A
TECH Q&A
 Sales Companies
Cross Reference
It is a question concerning the IRIDIUM POWER that is often.
What are the differences between IRIDIUM POWER and iridium spark plugs offered as genuine parts by car manufacturers?
They use iridium of the same quality in the tip but the purposes and specifications of the spark plugs differ.
The IRIDIUM POWER is a high performance spark plug. The iridium spark plugs offered as genuine parts by car manufacturers are long-life spark plugs. The center electrode in both is made from the new iridium alloy but the purpose of both are different. Therefore, the electrode diameter and ground electrode specifications also differ.
DENSO precious metal spark plugs are classified into the four types shown in the following table according to the center electrode material and type.


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