Home / Spark plugs / AC R42CXLS spark plug AC R42CXLS spark plug$2.00 4 in stock AC R42CXLS spark plug quantity Add to cart SKU: SP-MB-002 Category: Spark plugs Description Description AC R42CXLS spark plug – SKU SP-MB-002 New Old Stock AC R42CXLS spark plug – pulled from the inventory of Merchand Brothers, long-time independent mechanics in White River Junction, Vt. Follow this link for AC’s spark plug finder. Related products Denso K20R-U spark plug $1.60 Add to cart Denso K20PR-U11 spark plug $2.00 Add to cart Champion RN11YC4 spark plug $1.40 Add to cart Denso Q20R-U11 spark plug $1.50 Add to cart