SK20R11 Iridium Long Life Spark Plug
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Denso SK20R11 Iridium Long Life Spark Plug

Part No. 3297 Warranty  

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This long-life spark plug features a special iridium alloy (90% Ir) and a platinum ground strap.
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Electrode Core Material:Copper
Electrode Tip Material:0.7mm 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:0.7mm Iridium
Type:Iridium Long Life
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
DensoSK20R11 Iridium Long Life Spark Plug
 
4.8

(based on 19 reviews)

Ratings Distribution

  • 5 Stars

     

    (17)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

95%

of respondents would recommend this to a friend.

Pros

  • Easy to install (12)
  • Improves engine efficiency (9)
  • Durable (8)
  • Increases power (4)

Cons

    Best Uses

    • Everyday driving (12)
    • Replacement (12)
      • Car & Truck:
      • Casual driver (4), Auto enthusiast (3)
      • Reviewer Profile:
      • Casual driver (6), Auto enthusiast (4)

    Reviewed by 19 customers

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    Displaying reviews 1-10

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    5.0

    Stock Replacement

    By Cub126re

    from Torrington, CT

    About Me Casual Driver

    Verified Buyer
    Level 1

    Pros

    • Durable
    • Easy To Install

    Cons

      Best Uses

      • Replacement

      Comments about Denso SK20R11 Iridium Long Life Spark Plug:

      Stock replacement for original plugs in a 07 Scion TC. I changed plugs at 100K miles, book says to replace at 125K. The original plugs were in good shape, I could have waited a little longer to replace. Great plugs, long lasting.

      Comment on this review(earn points)

       
      4.0

      Same OEM for my 2009 Camry

      By Fred

      from Pa

      About Me Casual Driver

      Verified Buyer
      Level 1

      Pros

      • Easy To Install

      Cons

        Best Uses

        • Replacement

        Comments about Denso SK20R11 Iridium Long Life Spark Plug:

        Saved a lot by doing this my self. The same plugs were used by Toyota for this model and year...2009 Camry.

        Comment on this review(earn points)

        (1 of 1 customers found this review helpful)

         
        5.0

        OEM great spark plugs

        Comments about Denso SK20R11 Iridium Long Life Spark Plug:

        These are the exact spark plugs the car came with when it was brand new. I just replaced after 100,000 miles. Figured it was time. No issues with the old spark plugs other than they've been working for 100k miles.

        On a Toyota Camry, this was a half hour job. Glad to see no need to replace cables any more. Best 1/2 hour spent. Very easy job.

        Work great. It sounds like the plugs have even helped with the idle.

        Comment on this review(earn points)

        (2 of 3 customers found this review helpful)

         
        5.0

        Replacement for OEM plugs

        By Austin 01 Dodge Dakota

        from Mobile AL

        About Me Auto Enthusiast, Casual Driver

        Ask me a question

        Verified Buyer
        3 or more reviews submitted

        Pros

        • Comes Pre Gaped For Easy
        • Durable
        • Easy To Install
        • Improves Engine Efficiency

        Cons

          Best Uses

          • Everyday Driving
          • Replacement

          Comments about Denso SK20R11 Iridium Long Life Spark Plug:

          Exact match for my vehicle I removed old plugs after 50k miles .
          Some ware on plugs but was pleasantly surprised with the overall performance good for another 50-75k.

          Comment on this review(earn points)

          (2 of 4 customers found this review helpful)

           
          5.0

          Great product

          By BumbleBee

          from Lincoln, NE

          About Me Casual Driver

          Verified Buyer
          Level 1

          Pros

          • Durable

          Cons

            Best Uses

            • Everyday Driving

            Comments about Denso SK20R11 Iridium Long Life Spark Plug:

            Good plugs

            Comment on this review(earn points)

            (3 of 5 customers found this review helpful)

             
            5.0

            They're spark plugs...

            By ILikePlugs

            from Denver

            About Me Auto Enthusiast, Competitive Driver, Truck Enthusiast

            Verified Buyer
            Helpful Reviewer

            Pros

            • Easy To Install
            • Improves Engine Efficiency

            Cons

              Best Uses

              • Everyday Driving
              • Replacement

              Comments about Denso SK20R11 Iridium Long Life Spark Plug:

              What can I say here? They're spark plugs, replacements for the OEM Iridium plugs in our 4Runner. Unscrew the old ones, screw in the new ones, just be mindful of what you're doing as with any spark plug replacement. They did the job.

              Comment on this review(earn points)

              (3 of 5 customers found this review helpful)

               
              5.0

              OEM Correct

              By Dan

              from Louisiana

              About Me Auto Enthusiast

              Verified Buyer
              Helpful Reviewer

              Pros

              • LONG LASTING

              Cons

              • none

              Best Uses

              • Replacement

              Comments about Denso SK20R11 Iridium Long Life Spark Plug:

              These plugs are the original plug used by Toyota when new. Originals lasted 90,000 + miles. Replaced with Bosch which lasted only 40,000 miles before the Iridium tip disappeared. Hope to get 90,000 out of these.

              Comment on this review(earn points)

              (2 of 4 customers found this review helpful)

               
              5.0

              Restored original performance

              By Puffnstuff

              from Jacksonville, FL

              About Me DIY, Truck Enthusiast

              Verified Buyer
              Level 2

              Pros

              • Easy To Install
              • Improves Engine Efficiency

              Cons

                Best Uses

                • Everyday Driving
                • Replacement

                Comments about Denso SK20R11 Iridium Long Life Spark Plug:

                I replaced my original plugs which only had 60k on them. They were ngk long life iridium plugs installed by the factory. Let me tell you that with an electrode of only 1.1mm wear becomes noticable which is why I replaced mine. I don't know how they determine lifespan but there was no way they were going to make it to 100k. Anyway installed the denso's and my performance returned to normal. Remember to use anti-sieze on your threads when you install new plugs especially when dealing with dissimilar metsls.

                Comment on this review(earn points)

                (3 of 5 customers found this review helpful)

                 
                5.0

                Good product

                By Lexus man

                from Birmingham, Al

                Verified Buyer
                Level 2

                Comments about Denso SK20R11 Iridium Long Life Spark Plug:

                Exactly as advertised.
                Gapped correctly out of the package.
                Excellent service from Advance wrt speed of shipping.

                Comment on this review(earn points)

                (2 of 4 customers found this review helpful)

                 
                5.0

                Denso SK20R11 Iridium Plugs

                By Rico

                from Pembroke Pines, Fl.

                About Me Casual Driver

                Verified Buyer
                Level 1

                Pros

                • Easy To Install
                • Improves Engine Efficiency
                • Increases Power

                Cons

                  Best Uses

                  • Everyday Driving
                  • Replacement

                  Comments about Denso SK20R11 Iridium Long Life Spark Plug:

                  These plugs are the original ones that were on my wife's 2005 Toyota Camry LE. The Toyota dealer wanted much more for them. Denso plugs are what the factory uses. The gas mileage on the camry has improved. I would recommend changing your plugs every 30,000 miles. We are very happy with this product. So glad they carried them. I purchase most of our car parts at Advance Auto Parts. Installation was a breeze if you have some mechanical experience. I highly recommend these plugs has a replacement.

                  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.

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

                    Since this plug is pre-gapped is it just a removal of the old plug and replacement with the new plug. No other gapping or preparation needs to be done?

                    Rob
                    Asked on 3/11/2013 by Rob

                    1 answer

                    • CUSTOMER CARE

                      A:

                      This Denso SK20R11 Iridium Long Life Spark Plug -part# 3297 is vehicle specific. For assisting you further, please provide the year, make, model and engine size of the vehicle. You may also call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                      Answered on 3/11/2013 by Vincent from AAP
                  • Q:

                    My manual says to use 0.043 gap. Do these still work even though there is a tiny difference with it being 0.044?
                    Asked on 8/28/2012 by J from Austin, TX

                    1 answer

                    • CUSTOMER CARE

                      A:

                      We will need more information including the year, make, model, and engine size of your vehicle before we can make a suggestion. Please call us at 1-877-ADVANCE (238-2623) or visit your nearest Advance Auto Parts store and we would be more than
                      happy to further assist you.

                      Answered on 8/29/2012 by Rick from AAP
                  • Q:

                    Are these spark plugs factory gapped?
                    Asked on 8/15/2012 by Ravi from Dublin

                    1 answer

                    • CUSTOMER CARE

                      A:

                      This Denso SK20R11 Iridium Long Life Spark Plug (Part# 3297) is pre-gapped and it is having spark plug gap of 0.044". For 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 8/16/2012 by Rick from AAP
                  Displaying questions 1-3

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