Big-autoparts Pack of 9 Universal 8mm Core Straight Boots Spark Plug RFI Suppression Super Stock Ignition Wire Set Comes with 2 years' warranty period, OE level durability.TS16949 Certified manufacturer.Made of high performance 8mm diameter, Male/HEI and Female/Socket This part is compatible with 923 vehicles including many models of Ford Please refer to the below product description for more details Please feel free to contact us if there is any question and we will try whatever we can to help you