Spark Plug YR5 - NGK
My engine calls for a 43T plug will these work on my 228 mercruiser? The tips on the plugs i pulled out are extended her out than the yr5 that has a shorter tip?
Well the photos are representative photos from NGK. According to NGK's spark plug finder the YR5 is called for the 228 engine. So this is the correct one for your engine.
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