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 49 reviews)

Ratings Distribution

  • 5 Stars

     

    (40)

  • 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 (37)
  • Improves engine efficiency (33)
  • Durable (30)
  • Increases power (21)
  • Lightweight (7)

Cons

  • No improvement in performance (4)

Best Uses

  • Everyday driving (40)
  • Replacement (31)
  • Performance driving (5)
    • Car & Truck:
    • Casual driver (5), Auto enthusiast (3)
    • Reviewer Profile:
    • Casual driver (26), Auto enthusiast (14)

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 49 customers

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Displaying reviews 1-10

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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)

     
    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)

      (1 of 1 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)

         
        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)

           
          5.0

          Perfect for my Honda Accord

          By Dealhound

          from Denver, CO

          About Me Casual Driver

          Verified Buyer

          Pros

          • Easy To Install
          • Improves Engine Efficiency

          Cons

            Best Uses

            • Everyday Driving
            • Replacement

            Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

            I highly recommend these sparkplugs as they are OEM replacements. Much better price at Advance Auto Parts than the dealership.

            Comment on this review(earn points)

             
            4.0

            Great product

            By Joe

            from Shillington, PA

            About Me Auto Enthusiast, Casual Driver

            Verified Buyer
            Level 1

            Pros

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

            Cons

            • Gap Was Slighty Off

            Best Uses

            • Everyday Driving
            • Replacement

            Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

            Very happy with the plugs. I noticed a slight increase in power and gas mileage. I did have to increase the gap for each plug by about 0.1 mm but no biggie.

            Comment on this review(earn points)

             
            5.0

            Great product

            By RO

            from NJ

            About Me Casual Driver

            Verified Buyer
            Level 1

            Pros

            • Durable
            • Easy To Install
            • Lightweight

            Cons

            • No Improvement In Performance

            Best Uses

            • Everyday Driving
            • Replacement

            Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

            Great price!

            Comment on this review(earn points)

             
            5.0

            Great Price

            By Shahid

            from Valley Stream

            About Me Casual Driver

            Verified Buyer
            Level 2

            Pros

            • Easy To Install

            Cons

              Best Uses

              • Everyday Driving

              Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

              Hi,
              Great Item and Price I Paid, after the coupon.
              Easy to install.

              Comment on this review(earn points)

              (13 of 24 customers found this review helpful)

               
              3.0

              What can you say about a Spark Plug??

              By Metooearly

              from Round Hill, VA

              About Me Casual Driver

              Verified Buyer
              Level 2

              Pros

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

              Cons

                Best Uses

                • Everyday Driving
                • Replacement

                Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

                Product was fine.

                Comment on this review(earn points)

                (14 of 28 customers found this review helpful)

                 
                5.0

                OE on 2005 Acura TL

                By Nativo

                from Central NJ

                About Me Auto Enthusiast

                Verified Buyer
                Level 2

                Pros

                • Durable
                • Easy To Install
                • Improves Engine Efficiency

                Cons

                  Best Uses

                  • Everyday Driving

                  Comments about NGK Laser Iridium Spark Plug (IZFR6K11):

                  I replaced the original NGK's at 233k miles. I had no significant degradation on performance nor mpg's with the originals. Highly recommended for this particular application. Hoping to get to 300k

                  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 | 4 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

                    1 answer

                    • 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

                    • A:

                      Plugs are pregapped

                      Answered on 2/7/2013 by Cozmo from Fairmont WV
                    • 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
                  Displaying questions 1-3

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