NGK Laser Iridium Spark Plugs


NGK Spark Plugs
NGK Laser Iridium Spark Plugs

Product images may differ from actual product appearance.

Superior Ignitability, Stable Idle, and Long Service Life

  • Platinum disc on ground electrode
  • Iridium center electrode tip
  • Smallest tip diameter available
  • Manufacturer-approved design
  • Trivalent metal plating
  • Advanced anticorrosion, antiseizing, and antifouling properties
  • Quicker starts and acceleration
  • Improved fuel economy
  • Lower emissions
  • Sold individually



    		•
    Hot Heat Range
    NGK Spark Plugs ITR4A15 - NGK Laser Iridium Spark Plugs
         		739-ITR4A15
    		Laser Iridium Resistor Spark Plug
  • 14mm x .708" Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • Wide gap
    		• $9.99
    Ships
    in 3 days
    NGK Spark Plugs IZTR4A11 - NGK Laser Iridium Spark Plugs
         		739-IZTR4A11
    		Laser Iridium Resistor Spark Plug
  • 14mm x .708" Reach
  • 5/8" Hex
  • Extended projection
  • Tapered seat
  • Wide gap
    		• $14.99
    Ships
    in 3 days
    Hot-Medium Heat Range
    NGK Spark Plugs IFR5D10 - NGK Laser Iridium Spark Plugs
         		739-IFR5D10
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Wide gap
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs IFR5E11 - NGK Laser Iridium Spark Plugs
         		739-IFR5E11
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Wide gap
    		• $12.99
    Ships
    Monday
    NGK Spark Plugs IFR5G-11K - NGK Laser Iridium Spark Plugs
         		739-IFR5G-11K
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Wide gap
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs IFR5G11 - NGK Laser Iridium Spark Plugs
         		739-IFR5G11
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Wide gap
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs IFR5J11 - NGK Laser Iridium Spark Plugs
         		739-IFR5J11
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Wide gap
    		• $12.99
    Ships
    Monday
    NGK Spark Plugs IFR5N10 - NGK Laser Iridium Spark Plugs
         		739-IFR5N10
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Wide gap
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs IFR5T11 - NGK Laser Iridium Spark Plugs
         		739-IFR5T11
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Wide gap
    		• $9.99
    Ships
    Monday
    NGK Spark Plugs ILTR5A-13G - NGK Laser Iridium Spark Plugs
         		739-ILTR5A-13G
    		Laser Iridium Resistor Spark Plug
  • 14mm x 25mm Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • Wide gap
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs ILTR5B11 - NGK Laser Iridium Spark Plugs
         		739-ILTR5B11
    		Laser Iridium Resistor Spark Plug
  • 14mm x 25mm Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • Wide gap
    		• $8.99
    Ships
    in 3 days
    NGK Spark Plugs ILTR5C11 - NGK Laser Iridium Spark Plugs
         		739-ILTR5C11
    		Laser Iridium Resistor Spark Plug
  • 14mm x 25mm Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • Wide gap
    		• $9.99
    Ships
    in 3 days
    NGK Spark Plugs ITR5F13 - NGK Laser Iridium Spark Plugs
         		739-ITR5F13
    		Laser Iridium Resistor Spark Plug
  • 14mm x .708" Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • Wide gap
    		• $12.99
    Ships
    Monday
    NGK Spark Plugs IZFR5B - NGK Laser Iridium Spark Plugs
         		739-IZFR5B
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO extended projection
  • Gasket seat
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs IZFR5K11 - NGK Laser Iridium Spark Plugs
         		739-IZFR5K11
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO extended projection
  • Gasket seat
  • Wide gap
    		• $12.99
    Ships
    Monday
    NGK Spark Plugs IZTR5B11 - NGK Laser Iridium Spark Plugs
         		739-IZTR5B11
    		Laser Iridium Resistor Spark Plug
  • 14mm x .708" Reach
  • 5/8" Hex
  • Extended projection
  • Tapered seat
  • Wide gap
    		• $14.99
    Ships
    in 3 days
    NGK Spark Plugs PZTR5A-15 - NGK Laser Iridium Spark Plugs
         		739-PZTR5A-15
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • .708" Hex
  • projected
  • Tapered seat
    		• $9.39
    Ships
    Monday
    Medium Heat Range
    NGK Spark Plugs FR6EI - NGK Laser Iridium Spark Plugs
         		739-FR6EI
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs IFR6B-K - NGK Laser Iridium Spark Plugs
         		739-IFR6B-K
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • 2-ground electrode
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs IFR6D10 - NGK Laser Iridium Spark Plugs
         		739-IFR6D10
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Wide gap
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs IFR6E11 - NGK Laser Iridium Spark Plugs
         		739-IFR6E11
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Wide gap
    		• $17.99
    Ships
    Monday
    NGK Spark Plugs IFR6J11 - NGK Laser Iridium Spark Plugs
         		739-IFR6J11
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Wide gap
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs IFR6Q-G - NGK Laser Iridium Spark Plugs
         		739-IFR6Q-G
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • 4-ground electrode
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs IFR6T11 - NGK Laser Iridium Spark Plugs
         		739-IFR6T11
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Wide gap
    		• $9.99
    Ships
    in 3 days
    NGK Spark Plugs ILFR6A - NGK Laser Iridium Spark Plugs
         		739-ILFR6A
    		Laser Iridium Resistor Spark Plug
  • 14mm x 26.5mm Reach
  • 5/8" Hex
  • Projected
  • Gasket seat
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs ILFR6B - NGK Laser Iridium Spark Plugs
         		739-ILFR6B
    		Laser Iridium Resistor Spark Plug
  • 14mm x 26.5mm Reach
  • 5/8" Hex
  • Projected
  • Gasket seat
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs ILFR6T11 - NGK Laser Iridium Spark Plugs
         		739-ILFR6T11
    		Laser Iridium Resistor Spark Plug
  • 14mm x 26.5mm Reach
  • 5/8" Hex
  • Projected
  • Gasket seat
  • Wide gap
    		• $8.99
    Ships
    in 3 days
    NGK Spark Plugs ILTR6A-13G - NGK Laser Iridium Spark Plugs
         		739-ILTR6A-13G
    		Laser Iridium Resistor Spark Plug
  • 14mm x 25mm Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • Wide gap
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs ILTR6A-8G - NGK Laser Iridium Spark Plugs
         		739-ILTR6A-8G
    		Laser Iridium Resistor Spark Plug
  • 14mm x 25mm Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • Wide gap
    		• $18.99
    Ships
    in 3 days
    NGK Spark Plugs ILZFR6D11 - NGK Laser Iridium Spark Plugs
         		739-ILZFR6D11
    		Laser Iridium Resistor Spark Plug
  • 14mm x 26.5mm Reach
  • 5/8" Hex
  • ISO extended projection
  • Gasket seat
  • Wide gap
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs ITR6F13 - NGK Laser Iridium Spark Plugs
         		739-ITR6F13
    		Laser Iridium Resistor Spark Plug
  • 14mm x .708" Reach
  • 5/8" Hex
  • Projected
  • Tapered seat
  • Wide gap
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs IZFR6F11 - NGK Laser Iridium Spark Plugs
         		739-IZFR6F11
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO extended projection
  • Gasket seat
  • Wide gap
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs IZFR6K11 - NGK Laser Iridium Spark Plugs
         		739-IZFR6K11
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO extended projection
  • Gasket seat
  • Wide gap
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs LZFR6AI - NGK Laser Iridium Spark Plugs
         		739-LZFR6AI
    		Laser Iridium Resistor Spark Plug
  • 14mm x 26.5mm Reach
  • 5/8" Hex
  • Projected
  • Gasket seat
  • Wide gap
    		• $7.99
    Ships
    in 3 days
    NGK Spark Plugs SILFR6A - NGK Laser Iridium Spark Plugs
         		739-SILFR6A
    		Laser Iridium Resistor Spark Plug
  • 14mm x 26.5mm Reach
  • 5/8" Hex
  • Projected
  • Gasket seat
    		• $12.99
    Ships
    in 3 days
    Medium-Cold Heat Range
    NGK Spark Plugs IFR7G-11KS - NGK Laser Iridium Spark Plugs
         		739-IFR7G-11KS
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Wide gap
    		• $11.99
    Ships
    Monday
    NGK Spark Plugs IGR7A-G - NGK Laser Iridium Spark Plugs
         		739-IGR7A-G
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 13/16" Hex
  • Gasket seat
    		• $12.99
    Ships
    Monday
    NGK Spark Plugs ILFR7H - NGK Laser Iridium Spark Plugs
         		739-ILFR7H
    		Laser Iridium Resistor Spark Plug
  • 14mm x 26.5mm Reach
  • 5/8" Hex
  • Projected
  • Gasket seat
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs ILZKR7A - NGK Laser Iridium Spark Plugs
         		739-ILZKR7A
    		Laser Iridium Resistor Spark Plug
  • 12mm x 26.5mm Reach
  • 5/8" Hex
  • Extended projection
  • Gasket seat
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs IZKR7B - NGK Laser Iridium Spark Plugs
         		739-IZKR7B
    		Laser Iridium Resistor Spark Plug
  • 12mm x 3/4" Reach
  • 5/8" Hex
  • Extended shell
  • Gasket seat
    		• $12.99
    Ships
    in 3 days
    NGK Spark Plugs RE7C-L - NGK Laser Iridium Spark Plugs
         		739-RE7C-L
    		Laser Iridium Resistor Spark Plug
  • 14mm x 21mm Reach
  • 13/16" Hex
  • Gasket seat
    		• $21.99
    Ships
    Monday
    Cold Heat Range
    NGK Spark Plugs IFR8H11 - NGK Laser Iridium Spark Plugs
         		739-IFR8H11
    		Laser Iridium Resistor Spark Plug
  • 14mm x 3/4" Reach
  • 5/8" Hex
  • ISO projected
  • Gasket seat
  • Wide gap
    		• $11.99
    Ships
    Monday
    NGK Spark Plugs RE9B-T - NGK Laser Iridium Spark Plugs
         		739-RE9B-T
    		Laser Iridium Resistor Spark Plug
  • 14mm x 21mm Reach
  • 13/16" Hex
  • Gasket seat
    		• $21.99
    Ships
    Monday

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