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Spark Plug Numbering for R12


Albert

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Posted

I changed my plugs last night and noticed one oddity. The plugs I removed were OEM, Bosch R6. The new plugs are NGK DCP R8EKC. The NGK seems to be correct (based on what I can find) but I can find no reference to Bosch R6. Physically the plugs are identical. Any thoughts? TIA.

Posted

Albert, not sure what you have there.. You sure there aren’t more numbers on those removed Bosch plugs.. Bosch R6 doesn’t tell us much other than heat range..

 

 

Twisty

 

Posted

Hmm I'll look again Twisty but I didn't see any. There did appear to be a small symbol after the R6 but maybe there's more. Thanks.

Posted

Albert, if no more numbers up on the porcelain look down on the side of metal base..

 

Twisty

 

Posted

Gotcha, thanks.

Al

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