Laser Iridium Spark Plug (IZFR6K11)
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Laser Iridium Spark Plug (IZFR6K11) Laser Iridium Spark Plug (IZFR6K11)
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NGK Laser Iridium Spark Plug (IZFR6K11)

Part No. 6994 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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Electrode Core Material:Iridium
Electrode Tip Material:Iridium
Ground Strap Quantity:1
Manufacturer Heat Range:6
Resistor:Yes
Shorty Spark Plug:No
Spark Plug Reach:3/4 in
Spark Plug Seat Type:gasket
Spark Plug Thread Size:14 mm
Tip Configuration:Solid
Type:Iridium/Platinum
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
NGKLaser Iridium Spark Plug (IZFR6K11)
 
4.8

(based on 59 reviews)

Ratings Distribution

  • 5 Stars

     

    (50)

  • 4 Stars

     

    (7)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to install (46)
  • Improves engine efficiency (41)
  • Durable (36)
  • Increases power (25)
  • Lightweight (8)

Cons

  • No improvement in performance (5)

Best Uses

  • Everyday driving (48)
  • Replacement (37)
  • Performance driving (8)
    • Car & Truck:
    • Casual driver (5), Auto enthusiast (3)
    • Reviewer Profile:
    • Casual driver (34), Auto enthusiast (17), Mechanic (4)

Most Liked Positive Review

 

excellent plugs....use anti seize?

I installed these on my 2003 Honda Accord Coupe, 4 cylinder. These are the same plugs that were installed at the factory (I checked). I wanted to do a review because there...Read complete review

I installed these on my 2003 Honda Accord Coupe, 4 cylinder. These are the same plugs that were installed at the factory (I checked). I wanted to do a review because there is some question as to whether or not to use anti-seize compound on ngk plugs. The Haynes repair manual for the accords says to apply anti seize. NGK says not to apply anti-seize because it may cause you to overtighten the plugs, resulting in stripping the aluminum threads in the engine block. NGK also says they have already applied anti corrosion to the plugs. I used anti-seize because I didn't see the NGK notice about this until after I installed the plugs. I torqued the plugs in to 13 ft/lbs of torque. The car runs great, a noticeable improvement. If I were to do it all over, I would not use anti-seize as the 9 year old plugs came out easily so evidently it's not needed, but I think you're ok if you do use it. These are excellent plugs. Dealer will charge you $150 for a tune up ($22.50 per plug + labor. Do it yourself and save $120. It's an easy tune up.

VS

Most Liked Negative Review

 

OEM Stuff w/o Choices

The gapping is wrong, they state .044 but the original plugs from the factory which were the same as these were .04. I tried .044 and the car ran rough. But when changed...Read complete review

The gapping is wrong, they state .044 but the original plugs from the factory which were the same as these were .04. I tried .044 and the car ran rough. But when changed to .04, the car ran like it did when new. I tried the Bosck Plus 4 Ir, which actually had better MPG and Horsepower but the car ran rough. You need these laser plugs for the Accord which is a bummer frankly!

Reviewed by 59 customers

Displaying reviews 1-10

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5.0

NGKs performing like NGKs

By 

from Colorado Springs, CO

About Me Auto Enthusiast, Casual Driver

Verified Buyer

Pros

  • Durable
  • Easy To Install
  • Improves Engine Efficiency

Cons

    Best Uses

    • Everyday Driving

    Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

    lawn equipment, motorcycle, vehicles, always NGK

    Comment on this reviewHelp Icon(earn points)

     
    5.0

    Same as OEM

    By 

    from Midlothian, VA

    About Me Casual Driver, Mechanic

    Verified Buyer

    Pros

    • Easy To Install
    • Improves Engine Efficiency
    • Increases Power

    Cons

    • No Cons

    Best Uses

    • Replacement

    Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

    These plugs are the same as OEM and preform great

    Comment on this reviewHelp Icon(earn points)

    (5 of 9 customers found this review helpful)

     
    5.0

    Exact fit and good product

    By 

    from cary, nc

    3 or more reviews submitted

    Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

    Good product used it to replace plugs on a 2007 honda crv. works really well. i think these are the oem recoomended one. They come pregapped in the box.

    Comment on this reviewHelp Icon(earn points)

    (8 of 16 customers found this review helpful)

     
    5.0

    Same as original OEM plugs

    By 

    from Leesburg, VA

    About Me Casual Driver

    Pros

    • Durable
    • Easy To Install
    • Improves Engine Efficiency

    Cons

    • none

    Best Uses

    • Everyday Driving
    • Performance Driving
    • Replacement

    Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

    I got these on sale and they are exactly like my original NGK plugs on Accord 06 EXL v4 with 93K mileage. Although the old ones were working just fine, decided to take advantage of the sale. It made car running little smoother. As mentioned by others, installation was easy. This brand is carried by my local Honda dealer too but with much higher price even with mechanic shop discount. I used Denso plugs on my Toyotas which are good too but they cost slightly higher. Highly recommend NGK.

    Comment on this reviewHelp Icon(earn points)

    (9 of 17 customers found this review helpful)

     
    5.0

    07 Honda Accord EX Coupe 2.4

    By 

    from Coraopolis, PA

    About Me Casual Driver, Mechanic

    Verified Buyer
    Helpful Reviewer

    Pros

    • Easy To Install
    • Improves Engine Efficiency

    Cons

      Best Uses

      • Everyday Driving
      • Replacement

      Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

      Pretty Good Video On YouTube For Installation Procedure. Saved Time Without Playing Around With A Manual Or Guess Work. Changed All Four In My Car During a 1/2 Hour Lunch Break With Time To spare. Engine Started Quicker, Smoother and Quieter. Found A Great Friday 35% Of Coupon Code When I Searched AAP Coupons Codes.

      Comment on this reviewHelp Icon(earn points)

      (8 of 16 customers found this review helpful)

       
      5.0

      Easy to install

      By 

      from Omaha, NE

      About Me Casual Driver

      Verified Buyer
      Helpful Reviewer

      Pros

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

      Cons

      • Nothing

      Best Uses

      • Everyday Driving
      • Replacement

      Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

      Replaced the original plugs with these plugs and seen improvement.

      Comment on this reviewHelp Icon(earn points)

      (7 of 15 customers found this review helpful)

       
      5.0

      Superior Spark Plug

      By 

      from Dunmore, Pennsylvania

      About Me Auto Enthusiast, Casual Driver, Daily Driving-mostly City

      Verified Buyer
      Helpful Reviewer

      Pros

      • Easy To Install
      • Improves Engine Efficiency
      • Increases Power
      • Perfect Fit Pre-gapped

      Cons

      • Too High Priced

      Best Uses

      • Everyday Driving
      • Oem Replacement
      • Replacement

      Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

      Perfect OEM Replacement Spark Plug. Improved Performance & Gas Mileage At A Premium Price

      Comment on this reviewHelp Icon(earn points)

      (8 of 16 customers found this review helpful)

       
      5.0

      Does what it is designed to do.

      By 

      from Stoughton. MA

      About Me Casual Driver

      Verified Buyer
      Helpful Reviewer

      Pros

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

      Cons

        Best Uses

        • Everyday Driving
        • Performance Driving

        Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

        Owned several Hondas, and Mazdas over the years. I do my own tuneups. NGK is the only plug I have used and they have never failed to perform.

        Comment on this reviewHelp Icon(earn points)

        (8 of 16 customers found this review helpful)

         
        5.0

        NGK Laser Iridium*****

        By 

        from Douglasville, GA

        About Me Auto Enthusiast, Competitive Driver, Mechanic

        Verified Buyer
        Helpful Reviewer

        Pros

        • Durable
        • Easy To Install
        • Improves Engine Efficiency

        Cons

        • No Improvement In Performance

        Best Uses

        • Everyday Driving
        • Performance Driving
        • Racing
        • Replacement

        Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

        I have used NGK for many years and I know these are the number one plug for a Hondas. The previous owner had Bosch in there!!?? Have no idea why but I can definitely tell the difference in it. NGK all the wayyyy!!!

        Comment on this reviewHelp Icon(earn points)

        (8 of 16 customers found this review helpful)

         
        5.0

        Honda CRV 2003 Spark Plugs

        By 

        from Boston

        About Me Casual Driver

        Verified Buyer
        Level 2

        Pros

        • Durable
        • Easy To Install

        Cons

          Best Uses

          • Everyday Driving

          Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

          Improved gas mileage

          Comment on this reviewHelp Icon(earn points)

          Displaying reviews 1-10

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          Do you have questions about this product?(earn points for answers!)

           

          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.

          5 Questions | 7 Answers
          Displaying questions 1-5
          • Q:

            WHAT IS THE TOURQE SPEC ON A HONDA ELEMENT 4 CYL.
            Asked on 5/9/2015 by NONE from ROME,GA

            1 answer

          • Q:

            size of socket needed
            Asked on 3/25/2015 by none from Franklin, NC

            1 answer

            • CUSTOMER CARE

              A:

              I'm glad to answer you! You'll need 5/8 inch socket for this NGK Laser Iridium Spark Plug (IZFR6K11) - Part No. 6994.

              Answered on 3/26/2015 by Solomon
          • Q:

            What is the spark plug gap on the plugs?
            Asked on 7/15/2012 by Goody from Balt. MD

            1 answer

            • CUSTOMER CARE

              A:

              The Gap size on this part NGK Laser Iridium Spark Plug (IZFR6K11), Part No. 6994 is 1.1 mm.
              For compatibility of this part with your vehicle, please provide your vehicle make, model and engine specification.
              For any further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and our representatives would be more than happy to assist you.

              Answered on 7/15/2012 by Aaron from AAP
          • Q:

            Do these come 4 per pack or do I need to buy 4 individual ones?
            Asked on 3/26/2012 by Anonymous

            2 answers

            • CUSTOMER CARE

              A:

              This NGK Laser Iridium Spark Plug (Part No. 6994) is sold individually.

              Answered on 3/26/2012 by Dennis from AAP
            • A:

              there sold in packs of 6

              Answered on 11/3/2014 by richy from katy, tx
          • Q:

            do these plugs need to be gapped or are they pre-gapped?
            Asked on 2/19/2012 by rabon888 from rutherfordton nc

            2 answers

            • CUSTOMER CARE

              A:

              Yes, this NGK Laser Iridium Spark Plug with part#  6994 should come pre-gapped at 0.044".

              Answered on 2/20/2012 by Vincent from AAP
            • A:

              Plugs are pregapped

              Answered on 2/7/2013 by Cozmo from Fairmont WV
          Displaying questions 1-5

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