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Iridium Spark Plug Question

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Old Apr 11, 2008 | 12:24 AM
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Default Iridium Spark Plug Question
Just bought a set of iridium plugs and noticed there is a small white pyramid on the top of the electrode post. Is there any significance to this or is it just a mfrs mark?

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Old Apr 11, 2008 | 12:40 AM
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Originally Posted by PierEagle
Just bought a set of iridium plugs and noticed there is a small white pyramid on the top of the electrode post. Is there any significance to this or is it just a mfrs mark?

Thanks

On the top where the spark plug goes on? If so its the mfr's mark.
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Old Apr 11, 2008 | 01:10 AM
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Originally Posted by Corvette Don
On the top where the spark plug goes on? If so its the mfr's mark.
Yes. It's on top of the post that the boot goes on.
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