IK20 Iridium Power Spark Plug
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Denso IK20 Iridium Power Spark Plug

Part No. 5304 Warranty  

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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
Resistor:Yes
Spark Plug Reach:3/4 in
Spark Plug Seat Type:Gasket
Spark Plug Thread Size:14 mm
Tip Configuration:0.4mm Iridium
Type:Iridium Power
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
DensoIK20 Iridium Power Spark Plug
 
4.9

(based on 19 reviews)

Ratings Distribution

  • 5 Stars

     

    (17)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Improves engine efficiency (19)
  • Easy to install (13)
  • Increases power (13)
  • Durable (7)
  • Lightweight (4)

Cons

    Best Uses

    • Everyday driving (16)
    • Replacement (11)
    • Performance driving (9)
      • Car & Truck:
      • Casual driver (3)
      • Reviewer Profile:
      • Auto enthusiast (8), Casual driver (5), Mechanic (5)

    Reviewed by 19 customers

    Sort by

    Displaying reviews 1-10

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    5.0

    great product

    By thinkb4uspeak

    from Central CT

    About Me Casual Driver, Mechanic

    Verified Buyer
    Level 1

    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.

      Comment on this review(earn points)

       
      5.0

      "Great quality product"

      By Brad

      from Florida

      About Me Auto Enthusiast

      Verified Buyer
      Level 1

      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.

        Comment on this review(earn points)

        (0 of 1 customers found this review helpful)

         
        5.0

        i would buy this product for ever

        By Rosdom

        from Puerto Rico

        About Me Auto Enthusiast

        Verified Buyer
        Level 1

        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

        Comment on this review(earn points)

         
        4.0

        Performance improvement noticed.

        By Jim 540i

        from Brandywine, MD

        About Me Auto Enthusiast, Competitive Driver, Mechanic

        Verified Buyer
        Level 1

        Pros

        • Improves Engine Efficiency

        Cons

          Best Uses

          • Everyday Driving
          • Replacement

          Comments about Denso IK20 Iridium Power Spark Plug:

          A little costly but if reliablity has been extended it would be worth the cost, to early to know yet.

          Comment on this review(earn points)

          (1 of 3 customers found this review helpful)

           
          5.0

          excellent product assembled in the usa

          By John the Great

          from Tucson, AZ

          About Me Auto Enthusiast

          Verified Buyer
          Level 1

          Pros

          • Improves Engine Efficiency
          • Increases Power

          Cons

            Best Uses

            • Everyday Driving
            • Performance Driving

            Comments about Denso IK20 Iridium Power Spark Plug:

            Great product

            Comment on this review(earn points)

            (1 of 3 customers found this review helpful)

             
            5.0

            Works great!!!!!

            By A.P.

            from Surprise, AZ

            About Me Casual Driver

            Verified Buyer
            Level 1

            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.

              Comment on this review(earn points)

              (0 of 2 customers found this review helpful)

               
              5.0

              Grate plug

              By Novajoe

              from CHarlotte NC

              About Me Mechanic

              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

                Comment on this review(earn points)

                (1 of 3 customers found this review helpful)

                 
                5.0

                Perfect

                By tkt5577

                from California

                Verified Buyer
                Level 1

                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

                  Comment on this review(earn points)

                  (4 of 5 customers found this review helpful)

                   
                  5.0

                  Denso Ik20's

                  By hazard860

                  from lebanon, CT

                  About Me Auto Enthusiast, Competitive Driver, Drive It Like I Stole It, Mechanic, Seeking Mechanical

                  Verified Buyer
                  Helpful Reviewer

                  Pros

                  • Easy To Install
                  • Improves Engine Efficiency

                  Cons

                    Best Uses

                    • Everyday Driving
                    • Performance Driving
                    • Racing

                    Comments about Denso IK20 Iridium Power Spark Plug:

                    pretty quality spark plug, Denso is quite pricey so look for when on sale, but you get what you pay for and plugs are pretty good, no misfires, even under 17lbs of boost. i think i'll stick with this plug over my previous ngk's, and all 1.8t and 2.7t owner make sure you gap these plugs properly to your car!!! bolt down coil packs use .27gap all newer push down coils use .38-.42 gap.

                    coming from long time vw/audi owner and enthusiast

                    -2000 Audi S4 v6 twinturbo stage 3

                    Comment on this review(earn points)

                     
                    5.0

                    So far so good.

                    By ta79pr

                    from South Carolina

                    About Me Auto Enthusiast

                    Ask me a question

                    Verified Buyer
                    3 or more reviews submitted

                    Pros

                    • Easy To Install
                    • Improves Engine Efficiency
                    • Increases Power

                    Cons

                      Best Uses

                      • Everyday Driving
                      • Performance Driving
                      • Replacement

                      Comments about Denso IK20 Iridium Power Spark Plug:

                      I gapped them to .0445 for my 05 allroad 2.7 (BEL).

                      Comment on this review(earn points)

                      Displaying reviews 1-10

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                      Do you have questions about this product?(earn points for answers!)

                       

                      Ask a question, get answers from real customers and in-house experts. Or contact Customer Care by email or call 1-877-238-2623.

                      16 Questions | 16 Answers
                      Displaying questions 1-10Previous | Next »
                      • 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
                      • Q:

                        ARE THESES PLUGS GAPED FORA 2008 PASSAT 2.0 T AND ARE THE AS GOOD AS DOUBLE PLATINUM
                        Asked on 2/26/2012 by Anonymous

                        1 answer

                        • CUSTOMER CARE

                          A:

                          This Denso IK20 Iridium Power Spark Plug Part number 5304 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. Yes, this Spark Plug fits your 2008 Volkswagen Passat Turbo.

                          Answered on 2/27/2012 by Steve from AAP
                      • Q:

                        Hello-

                        What is the correct gap size for a 2005 BMW 530i (M54)Engine?
                        What is the gap size set by the manufacturer?
                        Thanks

                        carrie
                        Asked on 1/14/2012 by Anonymous from oakland,ca

                        1 answer

                        • CUSTOMER CARE

                          A:

                          The OE gap size for your 2005 BMW 530i is 0.044 and this IK20 Iridium Power Spark Plug (Part No. 5304) manufactured by Denso comes with 0.043 gap.

                          Answered on 1/15/2012 by Dennis from AAP
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