SUMMIT Spark Plug Gapping Tool 05+ Mustang 555-8901

The Steeda 555-8901 Spark Plug Gapping Tool is designed for precise adjustment of HT0-style spark plugs used in compatible Ford 4.6L three-valve engines, including selected 2005–2010 Ford Mustang models. Manufactured from billet 6061 aluminium, it securely holds the spark plug while the integrated adjustment screw allows the electrode gap to be changed gradually and accurately without damaging the plug. Part Number: 555-8901.