Iridium Ix Spark Plug (BKR6EIX-11)
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NGK Iridium Ix Spark Plug (BKR6EIX-11)

Part No. 3764 Warranty Details  

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Laser-welded iridium center electrode is resistant to heat, corrosion and electrical wear. The tapered ground electrode minimizes quenching. Provides outstanding acceleration, high fuel efficiency and durability.

Product Features:
  • 0.6 mm iridium-tip center electrode provides durability and a high melting point
  • Taper-cut ground electrode shape provides improved flame reproduction
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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:Taper Cut
Ground Strap Quantity:1
Hex Size:5/8 in
Manufacturer Heat Range:6
Reach:19 mm
Resistor:Yes
Seat Type:Gasket
Shorty Spark Plug:No
Spark Plug Approximate Resistor Value:5K Ohm
Thread Diameter:14 mm
Tip Configuration:Solid
Type:Iridium IX
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
NGKIridium Ix Spark Plug (BKR6EIX-11)
 
4.7

(based on 18 reviews)

Ratings Distribution

  • 5 Stars

     

    (16)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to install (12)
  • Improves engine efficiency (10)
  • Increases power (10)
  • Durable (6)

Cons

No Cons

Best Uses

  • Everyday driving (10)
  • Replacement (9)
  • Performance driving (6)
  • Restoration (4)
    • Was this a gift?:
    • No (3)
    • Reviewer Profile:
    • Casual driver (7), Auto enthusiast (3)

Most Liked Positive Review

 

Extra Long Life

I just replaced a set of these in my ES300 after 8 years and 120,000 miles. I originally put them in expecting it to be the last set of plugs on the car before...Read complete review

I just replaced a set of these in my ES300 after 8 years and 120,000 miles. I originally put them in expecting it to be the last set of plugs on the car before I got rid of it but the car lasted and so did the plugs. They came out in pretty decent shape with a slight brown carbon buildup and the gap spacing hadn't changed at all.

VS

Most Liked Negative Review

 

Excellent part

This drastically improved performance. I had tore the engine down to the valve covers to fix a mechanics mistake and once done decided to change the plugs. The plugs were so gunked up this...Read complete review

This drastically improved performance. I had tore the engine down to the valve covers to fix a mechanics mistake and once done decided to change the plugs. The plugs were so gunked up this increased the mpg by almost 8 mpg. Properly maintaining the car to start might be a good idea, but the difference in power was huge.

Reviewed by 18 customers

Displaying reviews 1-10

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5.0

NGK Irridium 100,000 Mile Spark Plug

By 

from Duluth, GA

Verified Buyer

Comments about NGK Iridium Ix Spark Plug (BKR6EIX-11):

At a little higher price than Platinum spark plugs, but these iridiums will easily last 100,000 miles in most applications. On my 2000 Lexus RX300, the rear plugs are VERY hard to replace, so I installed these iridium plugs and expect they will last another 18 years. The RX300 had 127,300 miles on it when I replaced these and it appears that the plugs had NEVER been replaced before, even though the car has always been stealer-serviced on the prescribed schedule. So much for getting what you're paying for at the stealer. I installed these myself, along with 6 new coil packs because one was failing and I didn't want to pay the stealer $1200 to fix it.

  • Was this a gift?:
  • No
 
5.0

Best Spark Plugs ever

By 

from Atlanta, GA

See all my reviews

Verified Buyer

Pros

  • 100k Mile Plugs
  • Performance You Can Feel
  • Pregapped

Cons

  • Pricey

Best Uses

    Comments about NGK Iridium Ix Spark Plug (BKR6EIX-11):

    I use these spark plugs on all my cars. They are a little pricey compared to other spark plugs but they last almost 100K miles. Well worth the price.

    • Was this a gift?:
    • No

    (2 of 2 customers found this review helpful)

     
    5.0

    Iridium spark plugs made to last!!!

    By 

    from Sweetwater, TN

    Verified Buyer

    Comments about NGK Iridium Ix Spark Plug (BKR6EIX-11):

    First of all let me say I bought these NGK iridium plugs because that is what I was replacing in my 2002 Toyota Camry. The car has almost 350,000 miles on it and the old plugs where installed at 100,000 miles. So needless to say I got 250,000 miles out of my old set of NGK iridiums of course I'm gonna use them again. I knew toyotas used iridium plugs but I wasn't sure what was in my car I had it serviced by the Toyota dealership I bought it from at 100,000 miles as part of my warranty they had put the NGK plugs in so I chose to use them again because obviously they work and hold up to the test of time. I will buy these again if I ever need more plugs and highly recommend them!!!

    • Was this a gift?:
    • No
     
    5.0

    das good

    By 

    from mi

    About Me Casual Driver

    Verified Buyer

    Pros

    • Increases Power

    Cons

      Best Uses

      • Everyday Driving
      • Replacement

      Comments about NGK Iridium Ix Spark Plug (BKR6EIX-11):

      i like them, you will too!

      (5 of 8 customers found this review helpful)

       
      1.0

      dont use on camry 2.2

      By 

      from orlando

      Comments about NGK Iridium Ix Spark Plug (BKR6EIX-11):

      dont use on camry 2.2 lt misfires

      use ngk Part # 3452 SKU: 9459027

      (4 of 8 customers found this review helpful)

       
      5.0

      No complaints

      By 

      from San Antonio, Tx

      About Me Auto Enthusiast, Mechanic

      See all my reviews

      3 or more reviews submitted

      Pros

      • Improves Engine Efficiency

      Cons

        Best Uses

        • Everyday Driving
        • Restoration

        Comments about NGK Iridium Ix Spark Plug (BKR6EIX-11):

        A MUST HAVE for anyone with a v6 that has a rear bank of cylinders. Everyone knows that those plugs are a PITA to get to, now why would you do all of that hard work to do it again in 20k-50k with different plugs? Just toss these in and forget about it until your engine needs a rebuild.

        (5 of 9 customers found this review helpful)

         
        5.0

        Better performance

        By 

        from Jacksonville, fl

        See all my reviews

        Helpful Reviewer

        Pros

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

        Cons

          Best Uses

          • Everyday Driving
          • Performance Driving
          • Replacement

          Comments about NGK Iridium Ix Spark Plug (BKR6EIX-11):

          I have a 1997 RAV4 and the idle was a little bit low, after installation the idle improved a lot and the car doesn't shake no more

          (3 of 5 customers found this review helpful)

           
          5.0

          Very good plug for replacement

          By 

          from South Beach, Miami, FLorida

          About Me Auto Enthusiast, Casual Driver, Competitive Driver, Mechanic, Truck Enthusiast

          Verified Buyer
          Helpful Reviewer

          Pros

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

          Cons

            Best Uses

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

            Comments about NGK Iridium Ix Spark Plug (BKR6EIX-11):

            this plug does a very good job, I noticed the engine come back to life with only 4 plugs installed. I've got a Volvo XC90 with a V8 which were very easy to install compared to American cars. I love the plugs and I'm sure they would last another 100K miled

            (4 of 7 customers found this review helpful)

             
            5.0

            Value and Performance

            By 

            from Hong Kong

            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 Iridium Ix Spark Plug (BKR6EIX-11):

              Budget priced spark

              (4 of 6 customers found this review helpful)

               
              5.0

              Iridium Spark Plug BKR6EIX-11 in GL1800

              By 

              from Middlesex, NJ

              About Me Auto Enthusiast, Casual Driver, Motorcyclist

              Verified Buyer
              Helpful Reviewer

              Pros

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

              Cons

              • none

              Best Uses

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

              Comments about NGK Iridium Ix Spark Plug (BKR6EIX-11):

              They were very easy to install. Power seems to just come easier at the same throttle position.
              I haven't been on a long enough ride yet to determine if they have improved the gas mileage of my bike; but you can feel the difference in performance.
              The only negative, which may not be a real negative is that they cost about three times as much as a non iridium spark plug.But they also last longer and if you are into performance this is the way to go. Bottomline I would purchase again and definitely recommend to a friend.

              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.

              3 Questions | 3 Answers
              Displaying questions 1-3
              • Q:

                how many milles warranty
                Asked on 11/15/2014 by Lucelly from orlando.fl

                1 answer

                • CUSTOMER CARE

                  A:

                  Hi Lucelly, glad to assist you! This spark plug carries a limited lifetime warranty. The limited lifetime warranty part can be refunded for cash/credit within the 90 days time frame. After that time expires, it can only be exchanged for a new item. So the warranty is valid for the life of the part as long as the customer owns the vehicle.

                  Answered on 11/16/2014 by Solomon
              • Q:

                if i purchase this for 2004 toyota siena v6 ,do i need to adjust the gap?is there a better spark plug that you could recommend?
                Asked on 12/6/2011 by Anonymous

                1 answer

                • CUSTOMER CARE

                  A:

                  This NGK Iridium Ix Spark Plug (Part No. 3764) already comes with pre-gapped of 0.044 and this part fits your 2004 Toyota Sienna.

                  Answered on 12/6/2011 by Dennis from AAP
              • Q:

                has anyone used them in an acura legend and what type of performance did they get?
                Asked on 12/16/2010 by Anonymous

                1 answer

                • CUSTOMER CARE

                  A:

                  Depending on how long it has been since you changed your spark plugs, you should notice a difference. I use NGK plugs with all my vehicles and have never had a problem with them.

                  Answered on 12/16/2010 by Mike the Auto Parts Master from AAP
              Displaying questions 1-3

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