SK16R11 Iridium Long Life Spark Plug
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Denso SK16R11 Iridium Long Life Spark Plug

Part No. 3324 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:16
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
DensoSK16R11 Iridium Long Life Spark Plug
 
5.0

(based on 20 reviews)

Ratings Distribution

  • 5 Stars

     

    (19)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Improves engine efficiency (15)
  • Easy to install (14)
  • Durable (13)
  • Increases power (10)
  • Lightweight (3)

Cons

    Best Uses

    • Everyday driving (18)
    • Replacement (12)
    • Performance driving (5)
    • Restoration (3)
      • Car & Truck:
      • Casual driver (5)
      • Reviewer Profile:
      • Casual driver (8), Auto enthusiast (5), Mechanic (5)

    Reviewed by 20 customers

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    Displaying reviews 1-10

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    5.0

    OEM for 1ZZ-FE/1ZZ-FED motors with VVT-i

    By askc46

    from St. Louis, MO

    About Me Auto Enthusiast, Casual Driver, Engine Rebuild

    Pros

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

    Cons

      Best Uses

      • Everyday Driving
      • Performance Driving
      • Racing
      • Replacement

      Comments about Denso SK16R11 Iridium Long Life Spark Plug:

      These Denso sparks plugs are so reliable that they should last 100k+, totally worth the buy.

      Toyota Owners Manual has this listed as one of the two replacement spark plug number.

      Comment on this review(earn points)

       
      5.0

      Nothing better than OEM

      By Greg

      from Bealeton,Va

      About Me Mechanic

      Verified Buyer
      Level 1

      Pros

      • Easy To Install
      • Improves Engine Efficiency
      • Increases Power

      Cons

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about Denso SK16R11 Iridium Long Life Spark Plug:

        Purchased a 2005 Prius that had a slight misfire at times. Installed these OEM plugs and instantly noticed performance increase as well as better fuel mileage.

        Comment on this review(earn points)

         
        5.0

        What Toyota Recommends

        By Joe

        from Knoxville, TN

        About Me Casual Driver

        Verified Buyer

        Pros

        • Durable
        • Easy To Install
        • Good Value

        Cons

        • none

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about Denso SK16R11 Iridium Long Life Spark Plug:

        The dealer only uses Denso now but it came with NGK. Was surprised but they work well.

        Comment on this review(earn points)

         
        5.0

        Awesome Plugs for your 1st Gen Prius

        By Eddie

        from Norwalk, CT

        About Me Mechanic

        Verified Buyer
        Level 2

        Pros

        • Easy To Install
        • Improves Engine Efficiency
        • Increases Power

        Cons

          Best Uses

          • Everyday Driving

          Comments about Denso SK16R11 Iridium Long Life Spark Plug:

          Best plugs for your Toyota Prius Hybrid as recommended by Owner's manual for 2001-2003 Prius.
          Deliver quick restarts.

          Comment on this review(earn points)

           
          5.0

          Good OEM Plug

          By John

          from Hot Springs, AR

          About Me Auto Enthusiast

          Verified Buyer
          3 or more reviews submitted

          Pros

          • Durable
          • Easy To Install
          • Improves Engine Efficiency

          Cons

            Best Uses

            • Everyday Driving
            • Replacement

            Comments about Denso SK16R11 Iridium Long Life Spark Plug:

            Good plug. Iridium will last over 100K miles, so the added expense is justified. OEM part, and my wife's Toyota Prius had just over 115K miles when I replaced, and they had never misfired or caused any problems. DO USE a little anti-seize on threads when you install, just in case you are the one that has to remove them next time!

            Comment on this review(earn points)

             
            5.0

            The Best Denso Spark Plug

            By DaStavman

            from Boston, MA

            About Me Auto Enthusiast, Like A Mechanic, Love To Work On Cars

            Pros

            • Durable
            • Easy To Install
            • Improves Engine Efficiency
            • Increases Power
            • Pre-gapped
            • Quality Craftsmanship

            Cons

              Best Uses

              • DIY
              • Everyday Driving

              Comments about Denso SK16R11 Iridium Long Life Spark Plug:

              I bought these Denso Iridium Long Life Spark Plugs 4 pack and put them into my 2005 Toyota Corolla Le. They are fuel efficient and powerful. The engine only had 40,000 miles on it and it was eight years old last year. I will change them again sooner the next time around. I highly recommend these spark plugs to everyone. Get these for your similar Toyota Corolla just check the owner's manual or call Toyota to find out.

              Comment on this review(earn points)

              (2 of 4 customers found this review helpful)

               
              5.0

              Identical to OEM

              By morpheusx

              from akron, oh

              About Me Auto Enthusiast, Casual Driver, Competitive Driver, Mechanic

              Verified Buyer
              Level 2

              Pros

              • Durable
              • Easy To Install
              • Improves Engine Efficiency
              • Price

              Cons

                Best Uses

                • Everyday Driving
                • Performance Driving
                • Replacement
                • Restoration

                Comments about Denso SK16R11 Iridium Long Life Spark Plug:

                Denso is the OEM manufacturer for TOYOTA / LEXUS /SCION. These ones are identical to the ones that come in the 2nd generation Prius (2004-2009). If you plan on replacing at the recommended intervals of 100k miles these are perfect. They are a bargain here compared to what the dealer charges for the exact same plug. If you are replacing with the platinums or double platinums to save a few dollars now you will need to change around 30-40k they don't hold up as well with the hybrid engine shutting on and off. Don't forget the dielectric grease for the boots and more importantly the anti sieze grease for the threads.

                Comment on this review(earn points)

                (2 of 4 customers found this review helpful)

                 
                5.0

                Work great on Toyotas

                By DJ

                from Baltimore, MD

                About Me Casual Driver

                Verified Buyer
                Level 2

                Pros

                • Durable
                • Improves Engine Efficiency
                • Increases Power

                Cons

                  Best Uses

                  • Everyday Driving
                  • Replacement

                  Comments about Denso SK16R11 Iridium Long Life Spark Plug:

                  Awesome...made for toyotas

                  Comment on this review(earn points)

                  (2 of 4 customers found this review helpful)

                   
                  5.0

                  i would buy againe

                  By cadilacman

                  from ky

                  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 SK16R11 Iridium Long Life Spark Plug:

                    helps gas milage motor runs smother easy to install

                    Comment on this review(earn points)

                    (2 of 4 customers found this review helpful)

                     
                    5.0

                    Good price, excellent product

                    By PA24 DRIVER

                    from Canton, Georgia

                    About Me Casual Driver, Mechanic

                    Verified Buyer
                    Level 1

                    Pros

                    • Durable
                    • Improves Engine Efficiency

                    Cons

                      Best Uses

                      • Everyday Driving
                      • Replacement

                      Comments about Denso SK16R11 Iridium Long Life Spark Plug:

                      Exact OEM replacement and less expensive than at dealer!

                      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.

                      4 Questions | 5 Answers
                      Displaying questions 1-4
                      • Q:

                        Is this OEM for 2006 Pontiac Vibe Base? If so, pre gap at .043mm per Pontiac Owner's Manual?
                        Asked on 8/21/2013 by Juan

                        1 answer

                        • CUSTOMER CARE

                          A:

                          This Denso SK16R11 Iridium Long Life Spark Plug -part# 3324 is an exact fit for your 2006 Pontiac Vibe and is pre-gapped at 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 8/21/2013 by Vincent from AAP
                      • Q:

                        are these plus pre gapped
                        Asked on 12/16/2012 by chuck from new orleans

                        1 answer

                        • CUSTOMER CARE

                          A:

                          Yes, this Denso SK16R11 Iridium Long Life Spark Plug -part# 3324 is pre gapped at 0.044". For any further assistance, please visit your nearest Advance Auto store or call us directly at 1-877-ADVANCE (238-2623) and one of our representatives there would be more than happy to assist you.

                          Answered on 12/16/2012 by Vincent from AAP
                      • Q:

                        is the Gap in mm or inches
                        Asked on 10/24/2011 by tony from laurel MD

                        2 answers

                        • CUSTOMER CARE

                          A:

                          Spark Plug Gap will be in mm.

                          Answered on 10/24/2011 by DIY Daniel from AAP
                        • A:

                          In mm

                          Answered on 2/28/2012 by Sldmsen2 from Charlotte, NC
                      • Q:

                        Will these work in a 2000 Toyota Echo? Are they pre-gapped? If not, what is the required gap? Thank you.
                        Asked on 11/10/2009 by Dr. Wick from Point of Rocks, MD

                        1 answer

                        • CUSTOMER CARE

                          A:

                          Yes, these do fit a 2000 Toyota Echo and they are already pre-gapped so you will not need to gap them.

                          Answered on 1/6/2010 by Mike from Advance Auto Parts
                      Displaying questions 1-4

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