Are Ac Delco R45TSX factory plugs in an 87 350? - The 1947 - Present Chevrolet & GMC Truck Message Board Network
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ACDelco 41-993 Professional Iridium Spark Plug (8 Pack), 41110 Pcs NEW ACDelco Set 41993 Plug DELCO R45TS SPARK Sleeve Black Wire Multiples Merc.., By ac-delco - Walmart.com
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