Laser Iridium Spark Plug
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Laser Iridium Spark Plug
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NGK Laser Iridium Spark Plug

Part No. 4904 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 in
Manufacturer Heat Range:6
Reach:26.5 mm
Resistor:Yes
Seat Type:Gasket
Shorty Spark Plug:No
Spark Plug Approximate Resistor Value:5K Ohm
Thread Diameter:14 mm
Tip Configuration:Solid
Type:Iridium/Platinum
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
NGKLaser Iridium Spark Plug
 
3.5

(based on 2 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

Reviewed by 2 customers

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(1 of 1 customers found this review helpful)

 
5.0

Super Plugs NGK

By 

from Eustis,Fl./Mt Dora Line!

About Me Auto Enthusiast, Car And Truck Specialist, Casual Driver, Competitive Driver, Mechanic, Tech Since 1978, Truck Enthusiast

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3 or more reviews submitted

Pros

  • Better Fuel Milage Epa
  • Durable
  • Easy To Install
  • Improves Engine Efficiency
  • Increases Power
  • Lightweight
  • No Foul Super Start
  • Quicker Start Runs Cool
  • Race Proven For Many Yrs

Cons

  • No Cons At All

Best Uses

  • Best Plugs Money Buys
  • Everyday Driving
  • Performance Driving
  • Racing
  • Replacement
  • Restoration

Comments about NGK Laser Iridium Spark Plug:

No Better plug ever than NGK, Best Plugs ever made to top specs !

(1 of 10 customers found this review helpful)

 
2.0

Dont waste your money

By 

from Boston Mass

Pros

  • Easy To Install
  • Lightweight

Cons

  • No Improvement In Performance

Best Uses

    Comments about NGK Laser Iridium Spark Plug:

    I replaced these with the OEM Denso, toyota put in the engine. I always heard NGK are the best for foreign engines. For [$] a plug I couldnt even tell a difference in performance from the OEM plugs. Waste of money, should of bought some plugs worth $3.

    Displaying reviews 1-2

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