NGK Standard Nickel Non-Resistor Spark Plugs - Set of 12 | Compatible with Most Cars, Trucks & SUVs | High Performance Ignition for Smooth Engine Operation

Kit Content:12 x NGK Standard Nickel Spark PlugsItem Description:Center Electrode Core Material: Copper CoreCenter Electrode Tip Material: NickelGround Configuration: Surface DischargeGround Electrode Core Material: Nickel CoreGround Electrode Tip Design: Surface Discharge Type OhmsHex Size: 13/16"Insulator Height: 55.00 mmManufacturer Heat Range: 8Pre-Gap Size: 0.016 inReach: 0.5 inResistance: 1 OhmsSeat Type: GasketThread Diameter: 0.551 in