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

Part No. 4589 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:6
Reach:19 mm
Resistor:Yes
Seat Type:Gasket
Shorty Spark Plug:No
Thread Diameter:14 mm
Tip Configuration:Solid
Type:Iridium/Platinum
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
NGKLaser Iridium Spark Plug
 
4.8

(based on 21 reviews)

Ratings Distribution

  • 5 Stars

     

    (16)

  • 4 Stars

     

    (5)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Improves engine efficiency (14)
  • Easy to install (12)
  • Durable (11)
  • Increases power (11)

Cons

No Cons

Best Uses

  • Everyday driving (16)
  • Replacement (9)
  • Performance driving (4)
    • Car & Truck:
    • Auto enthusiast (3)
    • Reviewer Profile:
    • Casual driver (9), Auto enthusiast (4)

Reviewed by 21 customers

Displaying reviews 1-10

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(0 of 3 customers found this review helpful)

 
5.0

Excellent quality

By 

from Flemington,NJ

About Me Casual Driver

Verified Buyer

Pros

  • Improves Engine Efficiency
  • Increases Power

Cons

    Best Uses

    • Everyday Driving
    • Performance Driving

    Comments about NGK Laser Iridium Spark Plug:

    Excellent quality and good price

    (0 of 1 customers found this review helpful)

     
    5.0

    OEM quality that was well priced

    By 

    from Alexandria, VA

    About Me Casual Driver

    Verified Buyer

    Pros

    • Improves Engine Efficiency

    Cons

      Best Uses

      • Replacement

      Comments about NGK Laser Iridium Spark Plug:

      In store pick-up option was great!

      (6 of 6 customers found this review helpful)

       
      5.0

      Top brand of spark plugs

      By 

      from TX

      About Me Auto Enthusiast, Casual Driver

      See all my reviews

      Verified Buyer
      Helpful Reviewer

      Pros

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

      Cons

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about NGK Laser Iridium Spark Plug:

        I often use NGK laser iridium spark plugs for all of Asian cars. My mechanic advised me to use that brand, too. They improve engine performance if your old spark plugs are going to be broken down by the time. They maybe get you better mileage per gallon, but I haven't tested it yet. They are more expensive than others, but you get what you pay for.
        I also bought Denso laser iridium spark plugs comparing to NGK ones. They are both the same from a company as a staff said. Denso parts are made from Japan, but assembled in US. They could last up to 100.000 miles.
        For 4 cylinder cars, you can easily install them with a screw driver, socket and wrench.

        (3 of 3 customers found this review helpful)

         
        5.0

        The only spark plug ever to get!

        By 

        from Tahoe City, CA.

        About Me Auto Enthusiast

        See all my reviews

        Verified Buyer
        3 or more reviews submitted

        Pros

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

        Cons

          Best Uses

            Comments about NGK Laser Iridium Spark Plug:

            This is the 2nd set of these plugs I've put in my 2003 4Runner 4.7L. When I pulled the last set out, they had approximately just over 49,000 miles on them. They did show signs of use of course, but the iridium tips were still sharp. I will probably replace these new ones at 40-45,000 miles. And I will buy them again from Advance Auto parts!

            (2 of 2 customers found this review helpful)

             
            4.0

            Product as described

            By 

            from Kansas

            About Me Casual Driver

            Verified Buyer

            Pros

              Cons

                Best Uses

                • Everyday Driving
                • Replacement

                Comments about NGK Laser Iridium Spark Plug:

                Toyota specified two OEM replacement Iridium plugs for my 2004 Sienna. Picked the slightly higher price NGKs but found Denso plugs installed. Other than a ridiculous lack of access to the rear plugs, installation was straightforward.

                (0 of 1 customers found this review helpful)

                 
                5.0

                NGK are best for japanese cars .......

                By 

                from Clearwater, FL

                About Me Auto Enthusiast

                Verified Buyer

                Pros

                • OEM Quality

                Cons

                • none

                Best Uses

                • Everyday Driving

                Comments about NGK Laser Iridium Spark Plug:

                Excellent product never had any problems ...

                (0 of 1 customers found this review helpful)

                 
                5.0

                I like these plugs

                By 

                from orlando florida

                About Me Casual Driver

                Verified Buyer

                Pros

                • Durable
                • Increases Power

                Cons

                  Best Uses

                  • Everyday Driving
                  • Replacement

                  Comments about NGK Laser Iridium Spark Plug:

                  are very good for my 2006 toyota sienna

                  (3 of 4 customers found this review helpful)

                   
                  5.0

                  Get what you pay for...

                  By 

                  from Birmingham Alabama

                  About Me Competitive Driver

                  Verified Buyer
                  Helpful Reviewer

                  Pros

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

                  Cons

                    Best Uses

                    • Replacement

                    Comments about NGK Laser Iridium Spark Plug:

                    replaced in 2004 Lexus SC 430 with 60,000 miles on it made a huge difference in performance and get up and go!

                    (2 of 3 customers found this review helpful)

                     
                    5.0

                    I would buy this product again

                    By 

                    from Maryland

                    About Me Casual Driver

                    See all my reviews

                    Verified Buyer

                    Pros

                    • Durable
                    • Easy To Install

                    Cons

                      Best Uses

                      • Everyday Driving

                      Comments about NGK Laser Iridium Spark Plug:

                      Service that I receive from Advance Auto keeps me coming back time and time.

                      (0 of 5 customers found this review helpful)

                       
                      5.0

                      good plug

                      By 

                      from evansville in

                      About Me Mechanic

                      Verified Buyer

                      Pros

                      • Durable
                      • Easy To Install
                      • Improves Engine Efficiency

                      Cons

                        Best Uses

                        • Everyday Driving

                        Comments about NGK Laser Iridium Spark Plug:

                        will use agin when needed

                        Displaying reviews 1-10

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                        Do you have questions about this product?

                         

                        Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

                        2 Questions | 2 Answers
                        Displaying questions 1-2
                        • Q:

                          if installing these exact replacement plugs do they have to be re gapped for my vehicle? 2002 Camry LE. I am mechanically inclined , but NOT a trained or certified auto mechanic. Thanks in ADVANCE
                          Asked on 11/5/2011 by Tiger....:) from Sayville, New York 11782

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Yes, this part fits your 2002 Toyota Camry LE.
                            Yes, a spark plug part number might fit hundreds of different engines from many different manufacturers. Although the spark plug from factory will come with the gap-set to a pre-selected setting, this may not be the right gap for your particular engine. The incorrect plug gap for your engine can contribute to a high rate of misfires, loss of power, plug fouling, poor fuel economy, and accelerated plug wear. It is always best to check the gap against the manufacturer's specifications.

                            Answered on 11/6/2011 by Aaron from AAP
                        • Q:

                          Are the spark plugs already gapped?
                          Asked on 4/25/2011 by Saint from Fanwood,NJ

                          1 answer

                          • CUSTOMER CARE

                            A:

                            No, you need to regap the plugs when installing them.

                            Answered on 5/12/2011 by Just Ask Jacob! from AAP
                        Displaying questions 1-2

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