Laser Iridium Spark Plug
Hover over the image to zoom in
Laser Iridium Spark Plug
Share this:

NGK Laser Iridium Spark Plug

Part No. 3474 Warranty Details  

See if this part fits a specific vehicle.

Check Vehicle Fit

OE-style long-life spark plug; laser-welded iridium center electrode and platinum ground electrode; tapered ground electrode to minimize quenching; consistent and stable spark; outstanding acceleration; high fuel efficiency and durability.

Product Features:
  • Iridium-tipped center electrode is 6 times harder than platinum
  • Platinum-tipped ground electrode ensures great durability and long life
  • Recommended for vehicles using distributorless ignition systems
Back To Top
Electrode Core Material:Iridium
Electrode Tip Material:Iridium
Ground Strap Quantity:1
Manufacturer Heat Range:5
Shorty Spark Plug:No
Spark Plug Reach:25.00 mm
Spark Plug Seat Type:tapered
Spark Plug Thread Size:14 mm
Tip Configuration:Loose
Wrench Diameter:5/8 in


by PowerReviews
NGKLaser Iridium Spark Plug

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

Displaying review 1

Back to top

(4 of 6 customers found this review helpful)


Very Good


from Louisville, KY

About Me Auto Enthusiast, Casual Driver

See all my reviews

Ask me a question

Verified Buyer
3 or more reviews submitted


  • Durable
  • Easy To Install
  • Improves Engine Efficiency
  • Increases Power
  • Lightweight


    Best Uses

    • Everyday Driving

    Comments about NGK Laser Iridium Spark Plug:

    After replacement, easy start, powerful sound, and easy accelerate.

    Comment on this reviewHelp Icon

    Check out the specials in our monthly flyer.
    Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.