Home / Spark plugs / AC 42XLS spark plug AC 42XLS spark plug$1.50 1 in stock AC 42XLS spark plug quantity Add to cart SKU: SP-MB-001 Category: Spark plugs Description Description AC 42XLS spark plug – SKU SP-MB-001 New Old Stock AC 42XLS 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 K20PR-U11 spark plug $2.00 Add to cart Bosch F6DTC spark plug $2.60 Read more Denso W16EX-U spark plug $2.00 Add to cart Denso W16EXR-U11 spark plug $1.25 Add to cart