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Home > FAQ / Knowledge > NGK and Champion Spark Plug Numbering Symbol Meaning

wil_h

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Betwix Harrogate and York

12th May, 2010 at 11:22:15am

I recently went to buy some plugs, but they didn't have exactly what I wanted, NGK BPR7ES, only BCPR7ES. I had no idea what the 'C'meant, but assumed that as the rest was the same they'd be ok. I guessd that it was likely the socket size.

After a bit of research I fould this, which confirmed my guess. thought that it might be useful to others:

NGK Chart

Champion Chart

Edit:Made the hyperlinks work and added Champion info

Edited by wil_h on 12th May, 2010.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

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On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination,
talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol

On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry.

Home > FAQ / Knowledge > NGK and Champion Spark Plug Numbering Symbol Meaning
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