They're almost the same plug - according to NGK's spark plug guide the S has a standard 2.5mm electrode and the A is a 'special design' - no more info given than that!
Ngk - dr8es-l
Dr8es-l
NGK dr8es-L
NGK D8EA/DR8EA/DR8EIX or equivalents.
For a Ngk plug it is a: NGK DR8EA
SPARK PLUG (DR8ES) (NGK) SPARK PLUG (X24ESR-U) (DENSO)
Factory plug is NGK DR8ES-L
NGK DR8ES-L gapped at 0.6 - 0.7 mm
NGK DR8ES-L gapped at .024-.028 inches.
Takes the same size as a 185. DR8ES-L
what is the difference between dual and single pin spark plugs
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