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



  • 88 Products View All Prev | Page: 1 2 3 Results per Page:
    Medium Heat Range

    739-LFR7AIX
    Iridium IX Spark Plug
  • 14mm x 26.5mm Reach
  • 5/8" Hex
  • Projected
  • Gasket seat
  • Sold Individually
    View this item
  • $9.99
    Ships
    06/25/13

    739-LTR7IX-11
    Iridium IX Spark Plug
  • 14mm x 25mm Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • .044" Gap
  • Sold Individually
    View this item
  • $8.99
    Ships

    739-LZTR7AIX-13
    Iridium IX Spark Plug
  • 14mm x 25mm Reach
  • 5/8" Hex
  • Extended projection
  • Tapered seat
  • .052" Gap
  • Sold Individually
    View this item
  • $9.99
    Ships

    739-TR7IX
    Iridium IX Spark Plug
  • 14mm x .708" Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • Sold Individually
    View this item

    Fits Applications
  • $9.99
    Ships
    Medium-Cold Heat Range

    739-BKR8EIX
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Sold Individually
    View this item
  • $8.99
    Ships

    739-BPR8EIX
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 13/16" Hex
  • Projected
  • Gasket seat
  • Sold Individually
    View this item

    Fits Applications
  • $9.99
    Ships

    739-BPR8HIX
    Iridium IX Spark Plug
  • 14mm x 1/2" Reach
  • 13/16" Hex
  • Projected
  • Gasket seat
  • Sold Individually
    View this item
  • $9.99
    Ships
    06/25/13

    739-BR8EIX
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 13/16" Hex
  • Gasket seat
  • Sold Individually
    View this item

    Fits Applications
  • $9.99
    Ships

    739-BR8HIX
    Iridium IX Spark Plug
  • 14mm x 1/2" Reach
  • 13/16" Hex
  • Gasket seat
  • Sold Individually
    View this item
  • $9.99
    Ships

    739-CR8EHIX-9
    Iridium IX Spark Plug
  • 10mm x 3/4" Reach
  • 5/8" Hex (partial thread)
  • Gasket seat
  • .036" Gap
  • Sold Individually
    View this item
  • $9.99
    Ships

    739-CR8EIB-10
    Iridium IX Spark Plug
  • 10mm x 3/4" Reach
  • 5/8" Hex (partial thread)
  • Resistor
  • Gasket seat
  • .040" Gap
  • Sold Individually
    View this item
  • $8.99
    Ships

    739-CR8EIX
    Iridium IX Spark Plug
  • 10mm x 3/4" Reach
  • 5/8" Hex
  • Gasket seat
  • Sold Individually
    View this item

    Fits Applications
  • $9.99
    Ships
    06/25/13

    739-CR8HIX
    Iridium IX Spark Plug
  • 10mm x 1/2" Reach
  • 5/8" Hex
  • Gasket seat
  • Sold Individually
    View this item
  • $9.99
    Ships

    739-DCPR8EIX
    Iridium IX Spark Plug
  • 12mm x 3/4" Reach
  • 5/8" Hex
  • Projected
  • Gasket seat
  • Sold Individually
    View this item

    Fits Applications
  • $7.99
    Ships

    739-DPR8EIX-9
    Iridium IX Spark Plug
  • 12mm x 3/4" Reach
  • 18mm Hex
  • Projected
  • Gasket seat
  • .036" Gap
  • Sold Individually
    View this item
  • $9.99
    Ships

    739-DR8EIX
    Iridium IX Spark Plug
  • 12mm x 3/4" Reach
  • 18mm Hex
  • Gasket seat
  • Sold Individually
    View this item

    Fits Applications
  • $9.99
    Ships
    06/25/13

    739-TR8IX
    Iridium IX Spark Plug
  • 14mm x .708" Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • Sold Individually
    View this item
  • Was: $9.99
    Now: $6.99
    Ships
    Cold Heat Range

    739-BKR9EIX
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Sold Individually
    View this item
  • $8.99
    Ships

    739-BPR9EIX
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 13/16" Hex
  • Projected
  • Gasket seat
  • Sold Individually
    View this item
  • $9.99
    Ships

    739-BR9EIX
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 13/16" Hex
  • Gasket seat
  • Sold Individually
    View this item
  • $9.99
    Ships

    739-BR9HIX
    Iridium IX Spark Plug
  • 14mm x 1/2" Reach
  • 13/16" Hex
  • Gasket seat
  • Sold Individually
    View this item
  • $9.99
    Ships
    06/25/13

    739-CR9EHIX-9
    Iridium IX Spark Plug
  • 10mm x 3/4" Reach
  • 5/8" Hex (partial thread)
  • Gasket seat
  • .036" Gap
  • Sold Individually
    View this item
  • $9.99
    Ships
    06/25/13

    739-CR9EIX
    Iridium IX Spark Plug
  • 10mm x 3/4" Reach
  • 5/8" Hex
  • Gasket seat
  • Sold Individually
    View this item
  • $9.99
    Ships

    739-DCPR9EIX
    Iridium IX Spark Plug
  • 12mm x 3/4" Reach
  • 5/8" Hex
  • Projected
  • Gasket seat
  • Sold Individually
    View this item

    Fits Applications
  • $9.99
    Ships

    739-DPR9EIX-9
    Iridium IX Spark Plug
  • 12mm x 3/4" Reach
  • 18mm Hex
  • Projected
  • Gasket seat
  • .036" Gap
  • Sold Individually
    View this item

    Fits Applications
  • $9.99
    Ships

    739-DR9EIX
    Iridium IX Spark Plug
  • 12mm x 3/4" Reach
  • 18mm Hex
  • Gasket seat
  • Sold Individually
    View this item

    Fits Applications
  • $8.39
    Ships
    06/25/13
    Extra Cold Heat Range

    739-BR10EIX
    Iridium IX Spark Plug
  • 14mm x 3/4" Reach
  • 13/16" Hex
  • Gasket seat
  • Sold Individually
    View this item
  • $9.99
    Ships
    06/25/13

    739-BR10HIX
    Iridium IX Spark Plug
  • 14mm x 1/2" Reach
  • 13/16" Hex
  • Gasket seat
  • Sold Individually
    View this item
  • $9.99
    Ships
    06/25/13

    88 Products View All Prev | Page: 1 2 3 Results per Page: