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      02-15-2020, 11:44 PM   #7
Frozen Fractals
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Drives: 2018 540i xDrive
Join Date: Jun 2015
Location: US / China

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Quote:
Originally Posted by claykin View Post
Is this the part # for the NGK plugs you purchased? Also make sure you gap it correctly.

SILZKGR8B8S

Dumb for that online vendor to ship you different brands when ordering a set for one engine.
Yeah, it's that one (NGK 94201). It seems like the original OE for the B58 engine was Champion as NGK didn't have a proper plug then. But now that NGK has a proper B58 plug, it seems that BMW is dual sourcing them? Either that or they switched to NGK and there's a lot of leftover stock of Champion plugs. I called a few dealers around me and it seems like most of them only carry the NGK plugs with a few carrying both NGK and Champion. Thus, I think BMW has indeed switch OEs to NGK from Champion. In any case, I bought two NGKs to replace the two Champions.
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