Champion J17LM Spark Plug, 0.023 to 0.028 in Fill Gap, 0.551 in Thread, 0.813 in Hex, Copper, For: Small Engines

Champion Spark Plug, Fill Gap Size: 0.023 to 0.028 in, Electrode: Nickel Copper Alloy, Thread Size: 0.551 in, Hex Size: 0.813 in, Copper, Suitable for: Small Engines