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  1. Are there 3 spark plugs or 4?

    Honda Insight Forum 1st-Gen Discussion
    Hello all, I'm about to change my plugs in my 2000 Insight. Many of you have given part numbers and letters for 4 spark plugs, A-D. However, in all of the detailed photos, there are only 3 plugs. I know the car is a 3 cylinder. In fact, the dealer wanted to sell me 3 (three) plugs. What...
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