Autolite High Thread Spark Plug

Revolution HT Is Specifically Designed For The Ford Triton 3 Valve Engine Design One-Piece Ground Shield Strap For Improved Heat Transfer Patented Finewire Design For More Focused Ignition Power Requires No Gapping Unique, Patented 10 mm Diameter High-Thread Design Offers A More Compressive Seal & Provides More Space To Optimize Engine Design