Hitachi 6 Ignition Coils & NGK 6 Ruthenium HX Spark Plugs Kit - Compatible with Infiniti Nissan 3.5L 4.0L V6 VQ35DE VQ40DE Engines - Perfect for Performance Upgrades & Engine Maintenance

Kit Content:6 x Hitachi Ignition Coils6 x NGK Ruthenium HX Spark PlugsItem Description:Thread Diameter(mm): (Spark Plugs) 14.00Center Electrode Core Material: (Spark Plugs) CopperCenter Electrode Tip Material: (Spark Plugs) RutheniumElectrical Terminal Type: (Spark Plugs) Non-Removable NutGround Electrode Quantity: (Spark Plugs) 1Hex Size(mm): (Spark Plugs) 5/8Pre-Gap Size(in): (Spark Plugs) .044Seat Type: (Spark Plugs) FlatGround Electrode Tip Design: (Spark Plugs) Dual Fine Electrode - High IgnitabilityManufacturer Heat Range: (Spark Plugs) 7Resistance(Ohms): (Spark Plugs) 5000Insulator Height(mm): (Spark Plugs) 50.50Ground Configuration: (Spark Plugs) StandardReach(mm): (Spark Plugs) 26.5Ground Electrode Core Material: (Spark Plugs) Nickel