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Discussion Starter · #1 ·
So I’m having this issues where these spark plugs are the same part number and everything but if you look closely at the thread diameter one is thicker than the other. The thicker diameter spark plug only threads into one cylinder while the thinner one would thread to all other 3 , idk I’m new to the automotive world and I just need help I’ve been looking everywhere for the specific plug but had no success
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D16y7 auto
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