GENUINE NGK IRIDIUM IX SPARK PLUGS - LTR6IX-11 - NGK 6509 - SET OF 4
Genuine NGK Iridium IX Spark Plugs. - Fine Iridium tip ensures high durability and a consistently stable spark. NGK PART NUMBER: LTR6IX-11. (Heat Grade 6). - Heat grade 6 for mildly tuned or standard engines.