Quote:
Originally Posted by 6MT
Huh? The most common spark plug size....not odd at all.
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5/8 or 13/16 are the most common followed by 18mm and 3/4 if you do small engines, at least thats the US, so whatever is in chinese cars nowadays is going to be the most common seeing as how they are or will be the number one producer of auto mobiles. the most common plug THREAD is M14 but the z has a 14mm hex