AC Fire Ring 42FS spark plug 5613263 GM box of 6 green ring vintage NOS

AC SPARK PLUG 42FS FIRE RING WITH GREEN STRIPES

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8 NOS AC Fire Ring Spark Plugs 42FS 5613263 Genuine AC Spark Plugs Porsche Volvo

USA MADE AC SPARK PLUG 42FS FIRE RING WITH GREEN STRIPES

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AC Fire Ring Spark Plugs 42FS with GREEN STRIPE RING Set of 4