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  

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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 55 reviews)

Ratings Distribution

  • 5 Stars

     

    (46)

  • 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 (43)
  • Improves engine efficiency (38)
  • Durable (34)
  • Increases power (24)
  • Lightweight (8)

Cons

  • No improvement in performance (5)

Best Uses

  • Everyday driving (46)
  • Replacement (35)
  • Performance driving (7)
    • Car & Truck:
    • Casual driver (5), Auto enthusiast (3)
    • Reviewer Profile:
    • Casual driver (31), Auto enthusiast (16), Mechanic (3)

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 55 customers

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Displaying reviews 1-10

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5.0

07 Honda Accord EX Coupe 2.4

By McCard58

from Coraopolis, PA

About Me Casual Driver, Mechanic

Verified Buyer

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 review(earn points)

     
    5.0

    Easy to install

    By N/A

    from Omaha, NE

    About Me Casual Driver

    Verified Buyer
    Level 1

    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 review(earn points)

     
    5.0

    Superior Spark Plug

    By willyd

    from Dunmore, Pennsylvania

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

    Verified Buyer
    Level 1

    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 review(earn points)

     
    5.0

    Does what it is designed to do.

    By Hot Rod

    from Stoughton. MA

    About Me Casual Driver

    Verified Buyer
    Level 1

    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 review(earn points)

       
      5.0

      NGK Laser Iridium*****

      By LT

      from Douglasville, GA

      About Me Auto Enthusiast, Competitive Driver, Mechanic

      Verified Buyer

      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 review(earn points)

       
      5.0

      Honda CRV 2003 Spark Plugs

      By Honda Guy

      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 review(earn points)

        (1 of 1 customers found this review helpful)

         
        5.0

        Great plugs

        By Brian the CRV driver

        from New Haven, CT

        About Me Casual Driver

        Verified Buyer
        Level 2

        Pros

        • Durable
        • Easy To Install

        Cons

          Best Uses

          • Everyday Driving
          • Replacement

          Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

          I replaced the original plugs (same laser iridiums) at 150,000 miles and they didn't look bad at all! I was still getting good mileage and performance was fine. The choice was obvious when looking for replacement plugs.

          Comment on this review(earn points)

          (1 of 1 customers found this review helpful)

           
          4.0

          I would buy this again anytime if needed

          By C T

          from Worcester, Ma

          About Me Auto Enthusiast

          Pros

          • Easy To Install
          • Improves Engine Efficiency
          • Increases Power

          Cons

            Best Uses

            • Everyday Driving
            • Performance Driving

            Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

            One of the best oem iridium spark plugs on the market.

            Comment on this review(earn points)

            (2 of 2 customers found this review helpful)

             
            5.0

            Perfect replacement for my Accord.

            By JNova

            from The Woodlands, TX

            About Me Casual Driver

            Verified Buyer
            Level 2

            Pros

            • Improves Engine Efficiency
            • Increases Power

            Cons

              Best Uses

              • Everyday Driving

              Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

              Exact fit for my Honda Accord. Easy installation. I would recommend the magnetic spark plug socket to help out.

              Comment on this review(earn points)

              (1 of 1 customers found this review helpful)

               
              5.0

              Simple To Install

              By SW

              from Delray Beach, FL

              About Me Casual Driver

              Verified Buyer
              3 or more reviews submitted

              Pros

              • Easy To Install

              Cons

                Best Uses

                • Everyday Driving

                Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

                No need for spark plug wrench with these spark plugs. Comes pre-measured to the corect gap size.

                Comment on this review(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. Or contact Customer Care by email or call 1-877-238-2623.

                3 Questions | 5 Answers
                Displaying questions 1-3
                • 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

                  • A:

                    there sold in packs of 6

                    Answered on 11/3/2014 by richy from katy, tx
                  • CUSTOMER CARE

                    A:

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

                    Answered on 3/26/2012 by Dennis from AAP
                • 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 1-3

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                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.