Set of 8 ISA Heavy Duty Ignition Coils and 8 Spark Plugs Compatible with 2007-2008 Ford Explorer Sport Trac 4.6L 281Cu. In. V8 Replacement for FD503 SP547

ISA Auto Heavy Duty Ford Explorer Sport Trac 4.6L 281Cu. In. V8 Replacement Ignition Coil Set of 8 ISA Heavy Duty Ignition Coils designed for optimal performance Includes 8 Spark Plugs for a complete ignition system upgrade Compatible with 20072008 Ford Explorer Sport Trac models Replacement for FD503 and SP547 ignition coil specifications Ensures reliable engine performance and improved fuel efficiency