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 15 reviews)

Ratings Distribution

  • 5 Stars

     

    (14)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

93%

of respondents would recommend this to a friend.

Pros

  • Easy to install (9)
  • Improves engine efficiency (8)
  • Durable (6)
  • Increases power (4)

Cons

    Best Uses

    • Everyday driving (11)
    • Replacement (9)
      • Car & Truck:
      • Casual driver (4), Auto enthusiast (3)
      • Reviewer Profile:
      • Auto enthusiast (3), Casual driver (3)

    Most Liked Positive Review

     

    Excellent Plugs. Excellent price.

    These are excellent plugs which normally come standard in newer Toyota cars. I installed these in my 2009 Camry 4 cylinder and also my 2004 Sienna XLE V6. The rear 3 plugs on the ...Read complete review

    These are excellent plugs which normally come standard in newer Toyota cars. I installed these in my 2009 Camry 4 cylinder and also my 2004 Sienna XLE V6. The rear 3 plugs on the Sienna are next to impossible to get changed. What a plus that these plugs don't have to be changed until 100,000 miles again. My originals of these plugs had 90,000 miles on them and I'm sure they still had at least another 25,000 miles left in them at minimum. They were in great condition after 90,000.

    VS

    Most Liked Negative Review

     

    ask me in 100,000 miles

    get real your mpg will not change

    get real your mpg will not change

    Reviewed by 15 customers

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    Displaying reviews 1-10

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    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)

       
      5.0

      They're spark plugs...

      By ILikePlugs

      from Denver

      About Me Auto Enthusiast, Competitive Driver, Truck Enthusiast

      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:

        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)

         
        5.0

        OEM Correct

        By Dan

        from Louisiana

        About Me Auto Enthusiast

        Verified Buyer
        Level 1

        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)

         
        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)

           
          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)

           
          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)

             
            5.0

            Denso has proven itself long ago with me

            By Cobrabobby

            from Loveland, CO

            About Me Auto Enthusiast, Mechanic

            Verified Buyer
            Level 1

            Pros

            • Durable
            • Easy To Install

            Cons

              Best Uses

              • Everyday Driving
              • Performance Driving
              • Replacement

              Comments about Denso SK20R11 Iridium Long Life Spark Plug:

              I've used Denso plugs for several years on my vehicles as well as friends and family. They seem to go the "Extra Mile" longevity wise and maintain stable performance and fuel economy in all cars, domestic and foreign made.

              Comment on this review(earn points)

              (0 of 1 customers found this review helpful)

               
              5.0

              Preferred plug for over 3 decades

              By thehawk

              from Meadville, PA

              About Me Casual Driver

              Verified Buyer
              Level 1

              Pros

              • Improves Engine Efficiency
              • Increases Power
              • Reliable

              Cons

              • none

              Best Uses

              • Everyday Driving

              Comments about Denso SK20R11 Iridium Long Life Spark Plug:

              Don't buy anything else if I can get Denso

              Comment on this review(earn points)

               
              5.0

              Great spark plug.

              By Dave

              from Indiana

              Verified Buyer

              Pros

              • Durable
              • Easy To Install
              • Improves Engine Efficiency

              Cons

                Best Uses

                • Replacement

                Comments about Denso SK20R11 Iridium Long Life Spark Plug:

                Installed these plugs in a 2002 Toyota Camry with a 4 cylinder engine. Previous spark plugs were the same kind from the factory, and they had almost 100,000 miles on them with no drivability issues. Plugs were still in great condition although there was a small amount of oxidation on the electrode. Since installing the new plugs, fuel economy has increased by 3mpg(about 10%).

                • Car & Truck:
                • Auto Enthusiast, Mechanic

                Comment on this review(earn points)

                 
                5.0

                '05 Toyota Sequoia

                By Driveway_mechanic

                from Austin, TX

                Verified Buyer

                Pros

                • Durable
                • Easy To Install
                • Improves Engine Efficiency

                Cons

                  Best Uses

                  • Everyday Driving

                  Comments about Denso SK20R11 Iridium Long Life Spark Plug:

                  Noticed a difference in engine performance. Too soon to know if mileage will improve. Replaced OEM's at 85K. OEM plugs were NGK platinum. Denso's are a hair better IMHO than NGK. Toyota uses both interchangeably.

                  • Car & Truck:
                  • Casual Driver, Truck Enthusiast

                  Comment on this review(earn points)

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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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