Laser Iridium Spark Plug (IZFR5K11)
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Laser Iridium Spark Plug (IZFR5K11) Laser Iridium Spark Plug (IZFR5K11) Laser Iridium Spark Plug (IZFR5K11)
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NGK Laser Iridium Spark Plug (IZFR5K11)

Part No. 3657 Warranty Details  
$13.49
Quantity  Add to Cart

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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:Trapezoid
Ground Strap Quantity:1
Hex Size:5/8 in
Manufacturer Heat Range:5
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/Platinum
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
NGKLaser Iridium Spark Plug (IZFR5K11)
 
4.7

(based on 26 reviews)

Ratings Distribution

  • 5 Stars

     

    (20)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

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

Cons

No Cons

Best Uses

  • Everyday driving (9)
  • Replacement (6)
    • Car & Truck:
    • Auto enthusiast (3), Casual driver (3)
    • Reviewer Profile:
    • Casual driver (5)
    • Was this a gift?:
    • No (6)

Most Liked Positive Review

 

Money well spent

I replaced 3 of these OEM Iridium plugs with 3 NGK cheaper platinum plugs about 3.5 years ago and left other 3 OEM Iridium plugs on my wife's van. I recently replaced all 6...Read complete review

I replaced 3 of these OEM Iridium plugs with 3 NGK cheaper platinum plugs about 3.5 years ago and left other 3 OEM Iridium plugs on my wife's van. I recently replaced all 6 plugs (3 OEM Iridium plugs with 100K+ and the 3 newer installed platinum plugs wtih about 50K miles). I included a picture for comparison. The platinum plug on the left with 50K miles is darker, dirtier than the OEM Iridium plug at right with 100K+ miles. They were pulled from my wife's Honday Odyssey van.

VS

Most Liked Negative Review

 

I would buy this product again.

Brought to replace old spark plugs in a Saturn Vue.
Nothing special about the spark plugs.

Brought to replace old spark plugs in a Saturn Vue.
Nothing special about the spark plugs.

Reviewed by 26 customers

Displaying reviews 1-10

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5.0

best plugs available

By 

from undisclosed

See all my reviews

Verified Buyer
3 or more reviews submitted

Comments about NGK Laser Iridium Spark Plug (IZFR5K11):

Great price on these superior plugs. Check the recommended plug gap for your application before installing. Mine were .036 out of the box. My lawnmower engine required .032

 
5.0

Highly Recommend NGK Spark Plugs

By 

from undisclosed

Verified Buyer

Comments about NGK Laser Iridium Spark Plug (IZFR5K11):

Bought these to replace the old plugs in my 2006 Honda Ridgeline RTL (207,000 miles as of yesterday!). Engine runs much better/smoother now. I have NGK spark plugs in almost everything I own, including my lawn mower, and recommend them over any other plug on the market. I used to use Champion plugs for most things, but NGK plugs are just better.

 
5.0

As Good as OEM

By 

from undisclosed

Verified Buyer

Comments about NGK Laser Iridium Spark Plug (IZFR5K11):

Fit perfectly, car runs smoothly. Quality product.

 
5.0

Great place to purchase oem parts

By 

from undisclosed

Verified Buyer

Comments about NGK Laser Iridium Spark Plug (IZFR5K11):

Best price

 
5.0

Great spark plug

By 

from Salem va

Verified Buyer

Comments about NGK Laser Iridium Spark Plug (IZFR5K11):

Easy

  • Was this a gift?:
  • No
 
5.0

The Best Plugs in the Market

By 

from undisclosed

Verified Buyer

Comments about NGK Laser Iridium Spark Plug (IZFR5K11):

NGK Spark Plugs are top notch and these Iridium are worth every penny. You will spend more on these Plugs but you will get the best quality and get at least 100,000 miles out of them. Once they are in you don't have to worry about them for a long time. All of my vehicles have them and I recommend them to everyone.

 
5.0

Online order. Picked up at store. Seamless service.

By 

from Clarence NY

Verified Buyer

Pros

    Cons

      Best Uses

      • Honda Pilot

      Comments about NGK Laser Iridium Spark Plug (IZFR5K11):

      Use Advance all the time.

      • Was this a gift?:
      • No
       
      5.0

      Great plug for Honda engine.

      By 

      from Vinton, VA

      Verified Buyer

      Pros

      • Faster starts, better idle and throttle response

      Cons

      • A little pricey, not bad when you get 25% off.

      Best Uses

        Comments about NGK Laser Iridium Spark Plug (IZFR5K11):

        Seems to be well built and they are doing great in my Honda powered Vue!

        • Was this a gift?:
        • No
         
        5.0

        Great Quality Spark Plug

        By 

        from Findlay,Ohio

        Verified Buyer

        Comments about NGK Laser Iridium Spark Plug (IZFR5K11):

        I was very impressed with the Quality build of this Spark Plug. I have found it is always best to go with OEM Parts for replacement..
        Spark Plugs have different heat ranges. So they are somewhat designed for specific engines.

        • Was this a gift?:
        • No
         
        5.0

        OEM parts

        By 

        from Baltimore, MD

        Verified Buyer

        Comments about NGK Laser Iridium Spark Plug (IZFR5K11):

        Good price on the exact OEM plugs for the Honda Pilot

        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.

        1 Question | 2 Answers
        Displaying question 1
        • Q:

          do i need to set the gap on these or are they pre-set?
          Asked on 3/16/2012 by Anonymous

          2 answers

          • CUSTOMER CARE

            A:

            There is no need to set as the NGK Laser Iridium Spark Plug with Part No. 3657 is preset with a gap of 0.044.

            Answered on 3/17/2012 by John the Car-Doc from AAP
          • A:

            Always check the gap according to your vehicle. NGK states on their website that the gap should be checked before installation.

            Answered on 6/7/2013 by anonymous from CA
        Displaying question 1

        Do you have a question about this product? 

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