NGK RUTHENIUM HX SPARK PLUG

Resistor: Yes,Electrode Type: U-Groove,Electrode Core Material: Copper,Electrode Tip Material: Ruthenium,Insulator Type: Projected,Thread Size (IN): 0.55 Inch,Thread Size (MM): 14 Millimeter,Reach: 0.984 Inch,Seat Type: Tapered,Wrench Diameter: 5/8 Inch Hex,Quantity: Single Plugs Provide Unparalleled Durability And A More Complete Fuel Burn Resulting In Quicker Throttle Response, Smoother Idle And Better Cold Starts,Trivalent Metal Plating Eliminates Need For Anti-Seize,Ruthenium Technology Offers The Highest Performance And Life Expectancy,Limited 90 Day Warranty