Compare Maximum number of 4 items selected ACCEL Spark Plug Spark Plug - 579C1 Part #: 579C1 Line: ACC ACCEL Spark Plug Spark Plug 90 Day Limited Warranty Seat: Tapered Thread Size: M14 Hex Size (in): 5/8 Inch Preset Gap (in): 0.045 Inch Thread Reach (in): 1 Inch Resistor Plug: Yes Center Electrode Core Material: Copper Center Electrode Tip Material: Copper Metallurgy: Copper Show More Show Less