M14x1.25 spark plug thread repair Kit with Assorted length inserts p/n 4490 Time-Sert TIME-SERT Kit Includes assorted length inserts of washer seat and taper seat styles Professional Spark plug thread repair kit with inserts for a high quality repair Repair stripped out spark plug threads without removing the head M14x1.25 spark plug thread repair Kit Fast and reliable repair by Time-Sert Simple 3 step process in this quality spark plug thread repair kit