Laser Iridium Spark Plug (IFR5E11)
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Laser Iridium Spark Plug (IFR5E11)
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NGK Laser Iridium Spark Plug (IFR5E11)

Part No. 7994 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:5
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 (IFR5E11)
 
4.9

(based on 10 reviews)

Ratings Distribution

  • 5 Stars

     

    (9)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Improves engine efficiency (10)
  • Easy to install (8)
  • Increases power (7)
  • Durable (6)

Cons

No Cons

Best Uses

  • Everyday driving (9)
  • Replacement (5)
  • Performance driving (3)
    • Car & Truck:
    • Casual driver (4)
    • Reviewer Profile:
    • Auto enthusiast (4)

Reviewed by 10 customers

Displaying reviews 1-10

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5.0

Good Product

By 

from New Orleans, LA

About Me Auto Enthusiast

Pros

  • Easy To Install
  • Improves Engine Efficiency

Cons

    Best Uses

    • Everyday Driving
    • Replacement

    Comments about NGK Laser Iridium Spark Plug (IFR5E11):

    Installed 6 in 2002 Isuzu Trooper, and the truck seems to perform noticeably better. Throttle repsonse feels better, and there may be 1-2 mpg increase as well but that is difficult to gage.

    The plugs that these replaced weren't completely gone but were well worn. So it is possible that any new plugs would have made a big difference. I bought the laser iridiums hoping that they last as long as they say they do.

    Comment on this reviewHelp Icon

     
    4.0

    easy install

    By 

    from Milford, Ohio

    About Me Auto Enthusiast

    See all my reviews

    Ask me a question

    Verified Buyer
    3 or more reviews submitted

    Pros

    • Durable
    • Easy To Install
    • Improves Engine Efficiency

    Cons

      Best Uses

      • Everyday Driving

      Comments about NGK Laser Iridium Spark Plug (IFR5E11):

      easy install. smoother idle

      Comment on this reviewHelp Icon

       
      5.0

      why skimp on quality

      By 

      from 1085

      About Me Auto Enthusiast

      See all my reviews

      Verified Buyer

      Pros

      • Easy To Install
      • Improves Engine Efficiency
      • Increases Power

      Cons

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about NGK Laser Iridium Spark Plug (IFR5E11):

        If you are looking to change spark plugs, do not let the price deter you,quality is the goal and for the amount of miles that these should deliver the price is next to nothing especially for DIY'ers

        Comment on this reviewHelp Icon

        (0 of 2 customers found this review helpful)

         
        5.0

        Excellent Spark Plugs

        By 

        from Tampa, FL

        About Me Auto Enthusiast, Casual Driver, Competitive Driver

        See all my reviews

        Ask me a question

        3 or more reviews submitted

        Pros

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

        Cons

          Best Uses

          • Everyday Driving
          • Performance Driving
          • Racing
          • Replacement
          • Restoration

          Comments about NGK Laser Iridium Spark Plug (IFR5E11):

          Excellent Spark Plugs (made in Japan) for my 2006 Hyundai Tiburon GS 2.0L 4 cylinder engine....

          Excelentes Bujías (echas en Japón) para mi 2006 Hyundai Tiburon GS 2.0L motor de 4 cilindros....

          Comment on this reviewHelp Icon

          (2 of 3 customers found this review helpful)

           
          5.0

          The best plug for subarus

          By 

          from denver

          About Me Mechanic

          Pros

          • Durable
          • Improves Engine Efficiency
          • Increases Power

          Cons

            Best Uses

            • Everyday Driving

            Comments about NGK Laser Iridium Spark Plug (IFR5E11):

            These are the best plugs not only for subarus, but for asian cars and other car brands. Replaced OEM NGK platinum in my subaru at 150k which still looked good. Am now pushing 300k total with these NGK iridium and still going strong. Am even getting 30-32mpg highway, which is outstanding in a subaru. Also have NGK iridium in a dodge and volvo and have never had a problem with them unlike Bosch or autolite plugs.

            Comment on this reviewHelp Icon

             
            5.0

            Laser Iridium Spark Plug by NGK Spark Pl

            By 

            from Duluth, GA

            See all my reviews

            Verified Buyer
            Helpful Reviewer

            Pros

            • Easy To Install
            • Improves Engine Efficiency
            • Increases Power

            Cons

              Best Uses

                Comments about NGK Laser Iridium Spark Plug (IFR5E11):

                Great.

                Comment on this reviewHelp Icon

                (1 of 1 customers found this review helpful)

                 
                5.0

                excellent spark plugs

                By 

                from South

                Pros

                • Easy To Install
                • Improves Engine Efficiency
                • Increases Power

                Cons

                  Best Uses

                  • Everyday Driving

                  Comments about NGK Laser Iridium Spark Plug (IFR5E11):

                  My 4 cyl. idles smoother and engine certainly is more responsive- especially, with highway driving.I noticed an immediate improvement after installing them.Cant comment on gas mileage yet.I tried the Denso IK16 which are very good but these are even better.Never thought spark plugs could make that much of a difference but the Laser Iridiums has for me !

                  • Car & Truck:
                  • Casual Driver

                  Comment on this reviewHelp Icon

                   
                  5.0

                  Worth the Cash

                  By 

                  from Buffalo, NY

                  Verified Buyer

                  Pros

                  • Durable
                  • Improves Engine Efficiency
                  • Increases Power
                  • Smooth Idle

                  Cons

                    Best Uses

                    • Everyday Driving
                    • Performance Driving
                    • Replacement

                    Comments about NGK Laser Iridium Spark Plug (IFR5E11):

                    increased my gas mileage, better acceleration, worth the money. BUY THEM!

                    • Car & Truck:
                    • Casual Driver

                    Comment on this reviewHelp Icon

                    (2 of 2 customers found this review helpful)

                     
                    5.0

                    Well worth the money.

                    By 

                    from Knoxville, Tennessee

                    Pros

                    • Better Throttle Response
                    • Durable
                    • Easy To Install
                    • Improves Engine Efficiency
                    • Increases Power
                    • More Power

                    Cons

                    • none

                    Best Uses

                    • Everyday Driving
                    • Performance Driving
                    • Racing
                    • Replacement
                    • Restoration

                    Comments about NGK Laser Iridium Spark Plug (IFR5E11):

                    Direct replacment for my 2000 Infiniti Q45 at 108,000 miles there was an immediate and noticeable change in throttle response and overall power. Car also started faster temp was about 51 degrees. Not sure about fuel mileage yet but if I stay out of the throttle i'm betting it will be better too. Price is great too considering you only have to change them every 100,000 miles.

                    • Car & Truck:
                    • Auto Enthusiast, Casual Driver, Mechanic

                    Comment on this reviewHelp Icon

                     
                    5.0

                    Worth the money

                    By 

                    from Pennsylvania

                    Verified Buyer

                    Pros

                    • Durable
                    • Easy To Install
                    • Improves Engine Efficiency

                    Cons

                    • No Improvement In Performance

                    Best Uses

                    • Everyday Driving

                    Comments about NGK Laser Iridium Spark Plug (IFR5E11):

                    A little costly, but for a better running engine, you can't go wrong. Saw an imediate difference in gas mileage.

                    • Car & Truck:
                    • Auto Enthusiast, Casual Driver

                    Comment on this reviewHelp Icon

                    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:

                      i was told there is no need to gap these plugs when I install them. Is this true?
                      Asked on 5/7/2013 by chris

                      1 answer

                      • CUSTOMER CARE

                        A:

                        Yes, this NGK Laser Iridium Spark Plug (IFR5E11) - part# 7994 is pre-gapped at 0.044". For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                        Answered on 5/7/2013 by Vincent from AAP
                    • Q:

                      which ngk is the best
                      Asked on 5/4/2012 by Anonymous from lubbock,tx

                      1 answer

                      • CUSTOMER CARE

                        A:

                        To help you in a better manner, Please be more specific on your query and we would be better able to assist you.
                        For compatibility of this part with your vehicle, please provide your vehicle make, model and engine specification.

                        Answered on 5/7/2012 by Aaron from AAP
                    Displaying questions 1-2

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