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Showing results for tags 'mercruiser 496 mag ho'.
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Hello and good evening, My boat is using engine mercruiser 496 mag ho, I usually use spark plug ACDelco 41-983 bought at marine shop which is very expensive, and recently I found we can buy it online at amazon too which is 3 times cheaper from marine shop I used to buy it. When the goods delivered to me I just make a detail check, just to make sure it’s correct like the original plugs, But there is slightly different at the packaging. I need someone to tell me whether I’m buying the original ACDelco plugs or not , because the old packing have the small “R” symbol while new one don’t have. i don’t have the old spark plug image