Iridium Ix Spark Plug (LFR5AIX-11)
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Iridium Ix Spark Plug (LFR5AIX-11) Iridium Ix Spark Plug (LFR5AIX-11)
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NGK Iridium Ix Spark Plug (LFR5AIX-11)

Part No. 4469 Warranty Details  
$8.99
Quantity  Add to Cart

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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:5
Reach:26.5 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 (LFR5AIX-11)
 
4.8

(based on 28 reviews)

Ratings Distribution

  • 5 Stars

     

    (23)

  • 4 Stars

     

    (5)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Improves engine efficiency (14)
  • Easy to install (12)
  • Durable (10)
  • Increases power (10)

Cons

No Cons

Best Uses

  • Everyday driving (13)
  • Replacement (9)
  • Performance driving (5)
    • Reviewer Profile:
    • Casual driver (8), Auto enthusiast (6), Mechanic (5)

Reviewed by 28 customers

Displaying reviews 1-10

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5.0

Good spark plug

By 

from undisclosed

Verified Buyer

Comments about NGK Iridium Ix Spark Plug (LFR5AIX-11):

I bought these spark plug for my 2011 TOYOTA Camery(4). The performance is very good and fast.

 
5.0

I would buy this product again and again

By 

from undisclosed

Verified Buyer

Comments about NGK Iridium Ix Spark Plug (LFR5AIX-11):

Great product installation was easy

 
5.0

Works great!

By 

from undisclosed

Verified Buyer

Comments about NGK Iridium Ix Spark Plug (LFR5AIX-11):

Works great!

 
5.0

Yes

By 

from undisclosed

Verified Buyer

Comments about NGK Iridium Ix Spark Plug (LFR5AIX-11):

Great product

 
5.0

Great Product

By 

from undisclosed

Verified Buyer

Comments about NGK Iridium Ix Spark Plug (LFR5AIX-11):

Great Product

 
5.0

Buy but buy

By 

from undisclosed

Verified Buyer

Comments about NGK Iridium Ix Spark Plug (LFR5AIX-11):

Best spark plugs runs like new

 
5.0

Worth the extra couple of dollars.

By 

from Atlanta, GA

Verified Buyer

Comments about NGK Iridium Ix Spark Plug (LFR5AIX-11):

Spent the extra couple of dollars to get these, well worth it. Typically I would buy the mid priced ones but with the constant strain on driving so much, traffic and hauling on a regular basis I opted to buy these. Didn't want to take any chances in case I take a road trip. My truck is running great. Great contact and purring like a kitten. Also purchased compete set of brakes an rotors to round out needed maintenance and got a great deal coupled with the limited lifetime warranty, doesn't get any better.

  • Was this a gift?:
  • No
 
5.0

Definitely improved engine performance

By 

from Frederick, MD

See all my reviews

Verified Buyer
3 or more reviews submitted

Pros

  • Exact Fit
  • High Quality
  • Well Made

Cons

    Best Uses

      Comments about NGK Iridium Ix Spark Plug (LFR5AIX-11):

      2003 Nissan Altima 2.5L 177K miles on it - Engine would sometimes shudder and hesitate at cruising speed under slight acceleration but no codes on the ECM. I had NGK plugs in it, around 80K miles on them. I installed new NGK plugs and thoroughly cleaned the coils/wiring/coil-on-boot tubes. The engine now runs smoother, increased power, and the shudder/hesitation is gone. NGK plugs are high quality plus they have superior plating on the threads, are less likely to seize in aluminum cylinder heads (ALWAYS use anti-seize on the threads when installing new plugs!). Exactly what was needed to restore my engine performance.

      • Was this a gift?:
      • No
       
      5.0

      NGK ALL THE WAY! !

      By 

      from San Antonio, TX

      Verified Buyer

      Comments about NGK Iridium Ix Spark Plug (LFR5AIX-11):

      I run these NGK's in all my vehicles. They work awesome and have never had issues.

       
      5.0

      Good stuff

      By 

      from Rock hill sc

      See all my reviews

      Verified Buyer
      3 or more reviews submitted

      Comments about NGK Iridium Ix Spark Plug (LFR5AIX-11):

      Nice and easy to use good quality as well.

      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.

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

        What the spark plug gap on the 2010 Toyota canary LE with 4 cylinder motor?
        Asked on 10/20/2015 by Steve from Stuart fl

        1 answer

        • CUSTOMER CARE

          A:

          Hi Steve, I'm glad to assist you. The spark plug gap on the 2010 Toyota Camry LE with 4 cylinder is 0.044 inches. This NGK Iridium Ix Spark Plug (LFR5AIX-11) (Part No. 4469) comes pre-gapped.

          Answered on 10/21/2015 by Solomon
      • Q:

        Are these the same long life plugs compared to the ddenso long life i wann try them
        Asked on 2/1/2015 by omar from riverside

        1 answer

        • CUSTOMER CARE

          A:

          Hi Omar, I'm glad to answer you! The part number you listed is the Iridium IX line (40k - 50k miles). This is not a long life OEM type plug, rather the NGK's Laser Iridium and Laser Platinum plugs (80k - 100k) are the long life plugs and are OEM in many applications. Please provide us with the details of your application (including the year, make and model) and I will be happy to provide you with the correct product that can be used if available.

          Answered on 2/2/2015 by Solomon
      • Q:

        Does this plug work for a 2008 Altima 2.5 S ? Just went to get a tune-up and the mechanic ordered plugs for my car but said they were the wrong size and now they say noone in the area has them. I looked under the make/model etc. and it shows these are in stock but if the thread area is too large like the ones they ordered it's a bit crazy that they aren't right.
        Asked on 3/30/2012 by Shawn from Whiteville, NC

        1 answer

        • CUSTOMER CARE

          A:

          No, this part NGK Iridium Ix Spark Plug, Part No. 4469 manufactured by NGK does not fit your 2008 Nissan Altima S 2.5L.

          Answered on 4/1/2012 by Aaron from AAP
      • Q:

        how do I change the plugs is the a diy diagram
        Asked on 3/4/2012 by Anonymous

        1 answer

        • CUSTOMER CARE

          A:

          To help you in a better manner, if you could please include the year, make, model and engine specification of the vehicle and we would be better able to assist you.

          Answered on 3/6/2012 by Aaron from AAP
      • Q:

        yea can iridium spark plug be gaped?
        Asked on 3/22/2011 by Rene from miami

        1 answer

        • CUSTOMER CARE

          A:

          No.

          Answered on 4/28/2011 by David the Dynamite Parts Guy from AAP
      Displaying questions 1-5

      Do you have a question about this product? 

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