- NGK Iridium Stock Heat Spark Plug (LZTR5AIX-13) QTY:16
NGK Iridium IX Spark Plugs represent the ultimate evolution of spark plug technology and performance. Iridium is significantly stronger than any metal used in spark plugs today. Its also the hardest metal used, which allowed NGK engineers to design an ultra fine center electrode; reducing the voltage requirement for Spark.
The design of the ultra-fine center electrode is designed not too thin to ensure maximum durability and life of the spark plug, and not too thick for an accurate and consistent spark. Iridium IX delivers the performance and durability to meet the demands and expectations of those who expect nothing but the best.
The 2314 Iridium is a Direct replacement (same heat range as stock) plugs in the Hemi LX Cars; but is one step colder in the Hemi Rams.