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NGK Iridium IX Spark Plug (07-11 3.8L Jeep Wrangler JK)

Item J103332
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      Product Information

      Features, Description, Reviews, Specs & Installation


      • High Performance Replacement Spark Plug
      • Improves Fuel Economy
      • Iridium Tip for Stable Spark
      • Trivalent Metal Plating Prevents Corrosion
      • Ensures Fast Startup and Lower Emissions
      • Sold Individually
      • For 2007-2011 3.8L Jeep Wrangler JK Models


      High Performance. Maintain your Jeep and ensure reliable sparking power by replacing your old, worn out spark plugs with NGK's Iridium IX Spark Plug. This high performance replacement spark plug provides improved fuel efficiency, lower emissions, and a quicker start up for reliable and consistent performance.

      Superior Materials. The NGK Iridium IX Performance Spark Plug features a copper core electrode selected for its superior conductivity and an iridium tip (which is 6 times harder than platinum) for its extremely high melting point to create a constant and reliable spark. This spark plug includes Trivalent Metal Plating to prevent unwanted corrosion and seizing for a solid start every time.

      Application. This NGK Iridium IX Performance Spark Plug is specifically designed as a direct fit replacement for 3.8L engines found in Jeep Wrangler 2007-2011 JK and JK Unlimited models.

      Fitment: 2007 2008 2009 2010 2011 Details

      MPN# LZTR5AIX-13

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (2)

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      Ratings Summary

      4.0 out of 5 overall rating from 2 customers

      Installation Time: Less than 1 Hour

      • September 26, 2017

        4 2008 Wrangler - PaulH Installation Time: Less than 1 Hour

        Jeep Wrangler

        Made my jeep run smoother. After spending $1750. at a local Jeep dealer.

        Helpful (12)
      • April 04, 2016

        4 2011 Wrangler Unlimited - AquaMan Installation Time: Less than 1 Hour

        Great bang for your buck

        I can definetly say that these plugs have improved performance but with the combination of NSK plugs new Omix spark plug wires and a new Airaid air filter the performance on my 2011 JKU has greatly increased. *** Word of advice... no need to route plug wires back behind the block. Run them over the engine. The wires come with heat shields.

        Helpful (17)

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      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Spark plug

      Will It Fit My Wrangler

      • JK Rubicon 2 Door - 07, 08, 09, 10, 11
      • JK Rubicon 4 Door - 07, 08, 09, 10, 11
      • JK Wrangler 2 Door - 07, 08, 09, 10, 11
      • JK Wrangler 4 Door - 07, 08, 09, 10, 11

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