Laser Iridium Spark Plug (IFR6D10)
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Laser Iridium Spark Plug (IFR6D10)
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NGK Laser Iridium Spark Plug (IFR6D10)

Part No. 5344 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:0.040 in
Ground Configuration:Standard
Ground Electrode Core Material:Copper Core
Ground Electrode Quantity:1
Ground Electrode Tip Design:Standard
Ground Strap Quantity:1
Hex Size:5/8
Manufacturer Heat Range:6
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 (IFR6D10)

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

Displaying review 1

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Great Replacement for H. O. Engines


from Hatteras, NC

About Me Auto Enthusiast, Mechanic

Verified Buyer


  • Durable
  • Improves Engine Efficiency


  • Expensive

Best Uses

  • Everyday Driving
  • Performance Driving
  • Racing
  • Replacement

Comments about NGK Laser Iridium Spark Plug (IFR6D10):

H.O. engine hasn't skipped a beat.

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