GENUINE NGK IRIDIUM IX SPARK PLUGS - LTR7IX-11 - NGK 6510 - - SET OF 4
Genuine NGK Iridium IX Spark Plugs. - Fine Iridium tip ensures high durability and a consistently stable spark. NGK PART NUMBER: LTR7IX-11. (Heat Grade 7). - Heat grade 7 for mildly tuned engines / standard in many high performance engines.