NGK Iridium IX Spark Plugs - JEGS

NGK Iridium IX Spark Plugs


NGK Spark Plugs
NGK Iridium IX Spark Plugs

Product images may differ from actual product appearance.

The Plug for Serious Enthusiasts
Iridium has a very high melting point that's perfect for high-performance, high-tech engines. It is stronger than any other metal used in spark plugs.

  • Ultra-fine electrode (thin enough for spark consistency & accuracy, thick enough for max durability & longevity)
  • Reduces spark voltage requirement
  • Fuel efficiency & extreme ignitability
  • Improved throttle response
  • Outstanding acceleration
  • Superior antifouling, anticorrosion, and antiseizing properties
  • Quality NGK Spark Plugs
  • Sold individually



  • 92 Products View All Page: 1 2 3 4 ... |  Next Results per Page:
    Extra Hot Heat Range

    739-BKR4EIX
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships
    06/26/13

    739-GR4IX
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 13/16" Hex
  • Projected
  • Gasket seat
  • Sold Individually
    View this item

    Fits Applications
  • $7.99
    Ships

    739-LZTR4AIX-11
    Iridium IX Spark Plug
  • 14mm x 25mm Reach
  • 5/8" Hex
  • Extended projection
  • Tapered seat
  • .044" Gap
  • Sold Individually
    View this item

    Fits Applications
  • $7.99
    Ships

    739-TR4IX
    Iridium IX Spark Plug
  • 14mm x .708" Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships

    739-UR45IX
    Iridium IX Spark Plug
  • 14mm x .460" Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • .059" Gap
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships

    739-UR4IX
    Iridium IX Spark Plug
  • 14mm x .460" Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships

    739-XR45IX
    Iridium IX Spark Plug
  • 14mm x 3/8" Reach
  • 13/16" Hex
  • Projected
  • Gasket seat
  • .059" Gap
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships
    06/26/13

    739-XR4IX
    Iridium IX Spark Plug
  • 14mm x 3/8" Reach
  • 13/16" Hex
  • Projected
  • Gasket seat
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships
    Hot Heat Range

    739-BCPR5EIX
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • JIS projected
  • Gasket seat
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships

    739-BCPR5EIX-11
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • JIS projected
  • Gasket seat
  • .044" Gap
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships

    739-BKR5EIX
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships
    06/26/13

    739-BKR5EIX-11
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • .044" Gap
  • Sold Individually
    View this item

    Fits Applications
  • $7.99
    Ships

    739-BPR5EIX
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 13/16" Hex
  • Projected
  • Gasket seat
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships
    06/26/13

    739-BPR5EIX-11
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 13/16" Hex
  • Projected
  • Gasket seat
  • .044" Gap
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships
    06/26/13

    739-CR5HIX
    Iridium IX Spark Plug
  • 10mm x 1/2" Reach
  • 5/8" Hex
  • Gasket seat
  • Sold Individually
    View this item
  • Was: $8.99
    Now: $5.39
    Ships

    739-GR5IX
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 13/16" Hex
  • Projected
  • Gasket seat
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships
    06/26/13

    739-LFR5AIX-11
    Iridium IX Spark Plug
  • 14mm x 26.5mm Reach
  • 5/8" Hex
  • Projected
  • Gasket seat
  • .044" Gap
  • Sold Individually
    View this item

    Fits Applications
  • $9.99
    Ships

    739-LTR5IX-11
    Iridium IX Spark Plug
  • 14mm x 25mm Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • .044" Gap
  • Sold Individually
    View this item

    Fits Applications
  • $7.99
    Ships

    739-LZTR5AIX-13
    Iridium IX Spark Plug
  • 14mm x 25mm Reach
  • 5/8" Hex
  • Extended projection
  • Tapered seat
  • .052" Gap
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships

    739-TR5-1IX
    Iridium IX Spark Plug
  • 14mm x .807" Reach
  • 5/8" Hex
  • Extended projection
  • Tapered seat
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships
    06/26/13

    739-TR55-1IX
    Iridium IX Spark Plug
  • 14mm x .807" Reach
  • 5/8" Hex
  • Extended projection
  • Tapered seat
  • .059" Gap
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships

    739-TR55IX
    Iridium IX Spark Plug
  • 14mm x .708" Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • .059" Gap
  • Sold Individually
    View this item

    Fits Applications
  • $7.99
    Ships

    739-TR5IX
    Iridium IX Spark Plug
  • 14mm x .708" Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships

    739-UR55IX
    Iridium IX Spark Plug
  • 14mm x .460" Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • .059" Gap
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships

    739-UR5IX
    Iridium IX Spark Plug
  • 14mm x .460" Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • Sold Individually
    View this item

    Fits Applications
  • $7.99
    Ships

    739-WR5IX
    Iridium IX Spark Plug
  • 18mm x .460" Reach
  • 13/16" Hex
  • Projected
  • Tapered seat
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships

    739-XR5IX
    Iridium IX Spark Plug
  • 14mm x 3/8" Reach
  • 13/16" Hex
  • Projected
  • Gasket seat
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships

    739-YR55IX
    Iridium IX Spark Plug
  • 14mm x .460" Reach
  • 5/8" Hex
  • Tapered seat
  • .059" Gap
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships
    06/26/13

    739-YR5IX
    Iridium IX Spark Plug
  • 14mm x .460" Reach
  • 5/8" Hex
  • Tapered seat
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships

    739-ZFR5FIX-11
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO extended projection
  • Gasket seat
  • .044" Gap
  • Sold Individually
    View this item

    Fits Applications
  • $8.99
    Ships

    92 Products View All Page: 1 2 3 4 ... |  Next Results per Page: