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Spark Plugs for Alero 2.4 Wrong?
I have a question for you guys. In my manual for my 01' 2.4 alero mt, it says the plug number is 41-942 yet when I use AC Delco parts catalog or call GM, they say that it is 41-963?? Does anyone know the difference between the two? There both platinum, and I dont know which ones to get, the ones the book calls for or the suggested ones from GM?
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