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
 
4.9

(based on 23 reviews)

Ratings Distribution

  • 5 Stars

     

    (21)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

96%

of respondents would recommend this to a friend.

Pros

  • Easy to install (15)
  • Improves engine efficiency (13)
  • Durable (9)
  • Increases power (5)

Cons

    Best Uses

    • Everyday driving (16)
    • Replacement (14)
    • Performance driving (3)
      • Car & Truck:
      • Casual driver (4), Auto enthusiast (3)
      • Reviewer Profile:
      • Casual driver (8), Auto enthusiast (5), Mechanic (3)

    Reviewed by 23 customers

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    Displaying reviews 1-10

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    5.0

    just what I ordered

    By usedcartech

    from Goshen Oio

    About Me Casual Driver

    Verified Buyer

    Pros

    • Durable
    • Easy To Install
    • Improves Engine Efficiency

    Cons

      Best Uses

      • Everyday Driving

      Comments about Denso SK20R11 Iridium Long Life Spark Plug:

      All is good

      Comment on this review(earn points)

       
      5.0

      Good product

      By Bob

      from Johnstown,PA.

      About Me Casual Driver

      Verified Buyer
      Level 1

      Pros

      • Easy To Install
      • Improves Engine Efficiency

      Cons

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about Denso SK20R11 Iridium Long Life Spark Plug:

        Good product working very well

        Comment on this review(earn points)

         
        5.0

        worth the money

        By Brewmaster

        from Crystal Lake, IL

        About Me Auto Enthusiast, Mechanic

        Ask me a question

        Level 7

        Pros

        • Easy To Install
        • Improves Engine Efficiency
        • Increases Power

        Cons

          Best Uses

          • Everyday Driving
          • Performance Driving
          • Replacement

          Comments about Denso SK20R11 Iridium Long Life Spark Plug:

          Always buy OEM spark plugs. These are OEM for a. Lexus LS430 and worked great. Don't skimp buying cheaper plugs and don't waste your money buying so called better plugs. Buy what your car had in it from the factory

          Comment on this review(earn points)

           
          5.0

          So far so good!

          By Computer Bob

          from Johnstown, PA

          About Me Mechanic

          Verified Buyer
          Level 3

          Pros

          • Improves Engine Efficiency

          Cons

            Best Uses

            • Everyday Driving

            Comments about Denso SK20R11 Iridium Long Life Spark Plug:

            Replaced after repairing sludge problem in valve covers at 116K. Old plugs were platinum, other brand and not the OEM so they were replaced somewhere along the way. The old plugs had heavy deposits on 2 plugs as a result of the sludge problem.
            Mileage increased appreciably after replacing with this brand.

            Comment on this review(earn points)

             
            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)

                      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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