Spark Plug Repair Kits

Spark plug repair come in two styles: one is made for wire type inserts and the inserts aren't included on these kits, and solid inserts and the inserts are included on these kits. Wire type inserts are made from 18-8(304) stainless steel to resist corrosion and solid inserts are made from carbon steel to provide a stronger solution but they are also less resistant to corrosion than the wire type inserts.