EXCELLENT DURABILITY: Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high performance engines. These spark plugs are made of double iridium, effectively burns off the carbon deposits on the plug tip, extending the service life
HIGHER PERFORMANCE: The double iridium spark plugs offer superior ignition performance, quicker and more sensitive ignition jumping, providing better ignitibility for vehicles and smoother environment for engine
COMPATIBLE VEHICLE: Ford
OE REFERENCE NUMBERS: Spark Plug compatible to SP450X ASF42CX
WARM TIPS: Please enter your vehicle's year/make/model and then check the fitment before purchasing, and the OE number of the replaceable part