IK20 Iridium Power Spark Plug
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Denso IK20 Iridium Power Spark Plug

Part No. 5304 Warranty Details  
$8.79
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This spark plug features a small center electrode (0.4 diameter), a tapered tip, a U-groove design and a special iridium alloy (90% Ir) for powerful performance.
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Electrode Core Material:Copper
Electrode Tip Material:0.4mm Iridium
Ground Strap Quantity:1
Insulator Type:Purified Alumina
Manufacturer Heat Range:20
Material:0.4mm Iridium
Reach:3/4 in
Resistor:Yes
Seat Type:Gasket
Thread Diameter:14 mm
Tip Configuration:0.4mm Iridium
Type:Iridium Power
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
DensoIK20 Iridium Power Spark Plug
 
4.7

(based on 24 reviews)

Ratings Distribution

  • 5 Stars

     

    (20)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

100%

of respondents would recommend this to a friend.

Pros

  • Improves engine efficiency (20)
  • Easy to install (14)
  • Increases power (14)
  • Durable (7)
  • Lightweight (4)

Cons

No Cons

Best Uses

  • Everyday driving (17)
  • Replacement (12)
  • Performance driving (9)
    • Car & Truck:
    • Casual driver (3)
    • Reviewer Profile:
    • Auto enthusiast (9), Casual driver (6), Mechanic (5)

Most Liked Positive Review

 

Great plugs

The Iridium Technology is a great step up from any other plug out there as far as "performance goes".

That said' They only last about half as long as...Read complete review

The Iridium Technology is a great step up from any other plug out there as far as "performance goes".

That said' They only last about half as long as Double Platinum plugs. According to Denso, Iridium plugs should be changed at around 30,000 miles compaired to over 100,000 miles on Double Platinum.{IF YOUR CAR HAS NO FOULING ISSUES}.

If peformance is what your after buy them. If your plugs are hard to change or it costs you alot for a mechanic to install them get "Double Platinums" and forget about changing them. Not regular cheaper platinums they wont last very long.

These Iridiums are said to add 2-3 hp in stock engines and 20+ in supercharged/turbo engines. The later is very hard to believe for me but Denso's sight states it. I'd have to see a dyno?

VS

Most Liked Negative Review

 

dont use on 2.2 lt camry

cause misfire on camry

Part # 3452 SKU: 9459027 use ngk

cause misfire on camry

Part # 3452 SKU: 9459027 use ngk

Reviewed by 24 customers

Displaying reviews 1-10

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5.0

Great quality at an affordable price

By 

from undisclosed

Verified Buyer

Comments about Denso IK20 Iridium Power Spark Plug:

Exact fit for my 2003 Sequoia.

 
5.0

"You want a TOP runner ... you have to ensure you keep it in

By 

from undisclosed

Verified Buyer

Comments about Denso IK20 Iridium Power Spark Plug:

This is my ANNUAL spark plug change choice for my VW GTi. It is "chipped" and runs CAI. Always keep my engine running smoothly and always FIRST start turnover. Pulled out the previous (after 11k mi) and they looked exceptional. Asked ... "WHY should I do this?" and then remembered ... "You want a TOP runner ... you have to ensure you keep it in TOP shape"!

 
5.0

I will by this type for my truck.

By 

from undisclosed

Verified Buyer

Comments about Denso IK20 Iridium Power Spark Plug:

Purchased for my VW Jetta Wolfsburg Edition and they are a perfect replacement. I was impressed with the low price.

(5 of 9 customers found this review helpful)

 
5.0

great product

By 

from Central CT

About Me Casual Driver, Mechanic

Verified Buyer
Helpful Reviewer

Pros

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

Cons

    Best Uses

    • Everyday Driving
    • Replacement

    Comments about Denso IK20 Iridium Power Spark Plug:

    Good quality spark plugs. Works well in my 2000 Audi A4 Quattro 1.8 Turbo.

    (4 of 9 customers found this review helpful)

     
    5.0

    "Great quality product"

    By 

    from Florida

    About Me Auto Enthusiast

    Verified Buyer
    Helpful Reviewer

    Pros

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

    Cons

      Best Uses

      • Everyday Driving
      • Performance Driving
      • Replacement

      Comments about Denso IK20 Iridium Power Spark Plug:

      The Denso Iridium spark plugs are made to a high standard vs. others on the market, nice replacement plug,they work very well.

      (4 of 9 customers found this review helpful)

       
      5.0

      i would buy this product for ever

      By 

      from Puerto Rico

      About Me Auto Enthusiast

      Verified Buyer
      Helpful Reviewer

      Pros

      • Improves Engine Efficiency

      Cons

      • Difficult To Install

      Best Uses

      • Everyday Driving

      Comments about Denso IK20 Iridium Power Spark Plug:

      used in all my cars

      (4 of 8 customers found this review helpful)

       
      5.0

      excellent product assembled in the usa

      By 

      from Tucson, AZ

      About Me Auto Enthusiast

      Verified Buyer
      Helpful Reviewer

      Pros

      • Improves Engine Efficiency
      • Increases Power

      Cons

        Best Uses

        • Everyday Driving
        • Performance Driving

        Comments about Denso IK20 Iridium Power Spark Plug:

        Great product

        (5 of 13 customers found this review helpful)

         
        5.0

        Works great!!!!!

        By 

        from Surprise, AZ

        About Me Casual Driver

        Verified Buyer
        Helpful Reviewer

        Pros

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

        Cons

          Best Uses

          • Everyday Driving

          Comments about Denso IK20 Iridium Power Spark Plug:

          Excellent product.

          (2 of 7 customers found this review helpful)

           
          5.0

          Grate plug

          By 

          from CHarlotte NC

          About Me Mechanic

          See all my reviews

          Verified Buyer
          3 or more reviews submitted

          Pros

          • Durable
          • Easy To Install
          • Improves Engine Efficiency

          Cons

            Best Uses

            • Everyday Driving
            • Performance Driving
            • Replacement
            • Restoration

            Comments about Denso IK20 Iridium Power Spark Plug:

            Grate plug for the money

            (3 of 7 customers found this review helpful)

             
            5.0

            Perfect

            By 

            from California

            Verified Buyer
            Helpful Reviewer

            Pros

            • Easy To Install
            • Improves Engine Efficiency
            • Increases Power

            Cons

              Best Uses

              • Performance Driving

              Comments about Denso IK20 Iridium Power Spark Plug:

              It is just perfect for performance

              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.

              18 Questions | 18 Answers
              Displaying questions 1-10Previous | Next »
              • Q:

                I have a 2005 Toyota Corolla XRS. I have 120k miles on my car and it is time to change my plugs. What would be a better plug the Denso IK20, Denso IK20R11, or NGK BKR6EIX-11? My car has an aftermarket intake and exhaust.
                Asked on 3/30/2016 by Ben from Lexington, NC

                1 answer

                • CUSTOMER CARE

                  A:

                  Hi Ben, glad to help you! All these 3 spark plug are exact fit for your 2005 Toyota Corolla XRS. We are unable to recommend/comment on the products on behalf of the manufacturers. In regard to the quality and performance of the products, we recommend that you contact the manufacturer directly for further assistance.

                  Answered on 3/31/2016 by Steve from AAP
              • Q:

                Is this spark plug good for 2003 BMW 325i? How many do I need? Thank you.
                Asked on 2/9/2015 by Hapiness from New City, NY

                1 answer

                • CUSTOMER CARE

                  A:

                  Hi Hapiness, I'm happy to assist you! This spark plug is 100% compatible for your 2003 BMW 325i and you'll need 6 of these for your vehicle.

                  Answered on 2/10/2015 by Solomon
              • Q:

                does this fit 2001 mitsubishi montero (pajero) 3.5L car?
                Asked on 2/2/2014 by nikoloz shulaia from rep.georgia tbilisi

                1 answer

              • Q:

                does this come in a 4 pack?
                Asked on 9/8/2013 by Den from Hilliard OH

                1 answer

                • CUSTOMER CARE

                  A:

                  This Denso IK20 Iridium Power Spark Plug - Part No. 5304 is sold individually. 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 9/9/2013 by Morgan from AAP
              • Q:

                I have a 2002 Toyota Sequoia. My owner's manual says the spark plug gap should be 0.0318", but this spark plug already comes pregapped to 0.044". I've heard that the gapping on an iridium spark plug should not be messed with. How would this spark plug fit into my Sequoia when it says its an exact fit?
                Asked on 8/5/2013 by bob from los angeles, ca

                1 answer

                • CUSTOMER CARE

                  A:

                  Yes, the recommended spark plug gap for your 2002 Toyota Sequoia is 0.032 only. I would recommend the NGK Iridium Ix Spark Plug (BKR6EIX) - Part No. 6418 instead of this Denso IK20 Iridium Power Spark Plug - Part No. 5304. 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 8/6/2013 by John the Car-Doc from AAP
              • Q:

                What is the gap on this spark plug?
                Asked on 8/4/2013 by bob from los angeles, ca

                1 answer

                • CUSTOMER CARE

                  A:

                  This Denso IK20 Iridium Power Spark Plug - part# 5304 is pre-gapped @ 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 8/4/2013 by Vincent from AAP
              • Q:

                im looking for spark plug with gasket. for a kia rio 2001 1.5.
                Asked on 7/13/2013 by Alex from Clermont , fl

                1 answer

                • CUSTOMER CARE

                  A:

                  This Denso IK20 Iridium Power Spark Plug - Part No. 5304 is an exact fit for your 2001 Kia Rio 1.5L. 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 7/13/2013 by Morgan from AAP
              • Q:

                not sure how many spark plugs I need for a Toyota rav4 2002
                Asked on 6/22/2013 by dellia from 33605

                1 answer

                • CUSTOMER CARE

                  A:

                  With reference to your inquiry on this Denso IK20 Iridium Power Spark Plug (Part No. 5304), your 2002 Toyota RAV4 required 4 Spark Plug. For any further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

                  Answered on 6/22/2013 by Max from AAP
              • Q:

                What is the gap size of this plug?

                Do I need to gap it to fit a 2006 Audi A4 2.0T?
                Asked on 3/5/2013 by peter from chicago

                1 answer

                • CUSTOMER CARE

                  A:

                  The Denso IK20 Iridium Power Spark Plug (Part No. 5304) is an exact fit for your 2006 Audi A4 and it is pre-gapped @ 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 3/5/2013 by Steve from AAP
              • Q:

                Will this plug be the right one for a 2002 Toyota highlander 6 cy
                Asked on 5/25/2012 by Anonymous

                1 answer

                • CUSTOMER CARE

                  A:

                  Yes, this Denso IK20 Iridium Power Spark Plug (Part# 5304) fits your 2002 Toyota Highlander V6.

                  Answered on 5/26/2012 by Dennis from AAP
              Displaying questions 1-10Previous | Next »

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