Laser Iridium Spark Plug (IFR5J11)
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Laser Iridium Spark Plug (IFR5J11) Laser Iridium Spark Plug (IFR5J11) Laser Iridium Spark Plug (IFR5J11)
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NGK Laser Iridium Spark Plug (IFR5J11)

Part No. 7418 Warranty Details  
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OE-style long-life spark plug; laser-welded iridium center electrode and platinum ground electrode; tapered ground electrode helps minimize quenching; consistent and stable spark; enhanced acceleration; high fuel efficiency and durability.

Product Features:
  • Iridium-tipped center electrode is 6 times harder than platinum
  • Platinum-tipped ground electrode helps ensure great durability and long life
  • Recommended for vehicles using distributorless ignition systems
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Center Electrode Core Material:Copper Core
Center Electrode Tip Material:Iridium
Electrode Core Material:Iridium
Electrode Tip Material:Iridium
Gap Size:0.044 in
Ground Configuration:Standard
Ground Electrode Core Material:Nickel Core
Ground Electrode Quantity:1
Ground Electrode Tip Design:Standard
Ground Strap Quantity:1
Hex Size:5/8
Manufacturer Heat Range:5
Reach:19 mm
Seat Type:Gasket
Shorty Spark Plug:No
Thread Diameter:14 mm
Tip Configuration:Solid
Wrench Diameter:5/8 in


by PowerReviews
NGKLaser Iridium Spark Plug (IFR5J11)

(based on 2 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 2 customers

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must be made of gold


from undisclosed

Verified Buyer

Comments about NGK Laser Iridium Spark Plug (IFR5J11):

Was exact replacement for my vehicle but cost arm and leg


These are very good plugs.


from bristol, VA

About Me Auto Enthusiast, Casual Driver

See all my reviews

Verified Buyer
Helpful Reviewer


  • Durable
  • Improves Engine Efficiency
  • Increases Power


    Best Uses

    • Everyday Driving
    • Replacement
    • Restoration

    Comments about NGK Laser Iridium Spark Plug (IFR5J11):

    These came as OE on my 2008 Suzuki SX4. Had 105,500 miles when I replaced them. They showed 2thousandths of gap burn. They were still working good, and no loss of gas mileage. So I went back with OE.

    Displaying reviews 1-2

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