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Spark Plug Question

flabob1

flabob1

Regular Contributor
Are spark plugs interchangeable between NGK BKR6EKU and NGK BKR7EKU ?.

Ok simple question that I can't find a answer for . Some people say they should work ???.

I have Yahama 2004 150 HPDI
 
Both of those two NGK plugs are identical, except for their heat range number (6 & 7). The higher the number the colder the plug. From the NGK website: "When making spark plug heat range changes, it is better to err on the side of too cold a plug. Running too cold a plug can only cause it to foul out, whereas running too hot a plug can cause severe engine damage."


With that said, the NGK plug indicated for your engine is the BKR6EKU. It's always a wise decision to use the manufacturer recommended parts.
 
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