Looking for aftermarket parts to modify or upgrade your 2003 Jeep Wrangler with spark plugs? At Tunersports.com we carry a huge selection of the top name brand performance spark plug parts and accessories.

OUT OF STOCK 5017NGK G-Power Series offers the performance and durability of platinum at a competitive price. Fine wire platinum tipped center electrode reduces required voltage for better starts, superior acceleration and increased fuel economy.... NGK G-Power Spark Plug Box of 4 (LZTR4AGP) 2003-2006 Jeep Wrangler SE $49.42 |

OUT OF STOCK 2313The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX® the ideal choice for any performance enthusiast. Iridium's high melting point is perfectly suited to today's high-temperature engines, delivering outstanding acceleration, fuel efficiency and durability.... NGK Iridium IX Spark Plug Box of 4 (LZTR4AIX-11) 2003-2006 Jeep Wrangler SE $53.80 |

OUT OF STOCK 4997NGK Laser Platinum Series plugs provide high ignitability and longer service life. Laser welded dual platinum surfaces ensure slow wear rate providing stable idel, superior anti fouling, improved fuel efficiency and lower emissions.... NGK Laser Platinum Spark Plug Box of 4 (PLZTR4A-13) 2003-2006 Jeep Wrangler SE $66.72 |

OUT OF STOCK 5306NGK standard plugs are constructed for longer life and optimum performance.... NGK Nickel Spark Plug Box of 4 (LZTR4A-11) 2003-2006 Jeep Wrangler SE $38.95 |

IN STOCK - LOW 3459NGK V-Power plugs feature a unique v-cut in the center electrode that directs the spark to the edge of the electrode, helping the spark develop more rapidly, increasing ignitability and reducing quenching.... NGK V-Power Spark Plug Box of 4 (ZFR5N) 1997-2004 Jeep Wrangler Sahara 1997-2006 Jeep Wrangler Sport 2002-2006 Jeep Wrangler X 2003-2006 Jeep Wrangler Rubicon $38.93 |