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
 
4.9

(based on 19 reviews)

Ratings Distribution

  • 5 Stars

     

    (18)

  • 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 (14)
  • Easy to install (13)
  • Durable (12)
  • Increases power (9)
  • Lightweight (3)

Cons

    Best Uses

    • Everyday driving (17)
    • Replacement (11)
    • Performance driving (4)
    • Restoration (3)
      • Car & Truck:
      • Casual driver (5)
      • Reviewer Profile:
      • Casual driver (7), Mechanic (5), Auto enthusiast (4)

    Reviewed by 19 customers

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    Displaying reviews 1-10

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    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)

                    (2 of 4 customers found this review helpful)

                     
                    5.0

                    Power Packing & Efficient Spark Plug

                    By DaStaveman

                    from Boston, MA

                    About Me Auto Enthusiast, Casual Driver, Competitive Driver

                    Pros

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

                    Cons

                    • none

                    Best Uses

                    • Everyday Driving
                    • Performance Driving
                    • Unbelievable acceleration

                    Comments about Denso SK16R11 Iridium Long Life Spark Plug:

                    My 2005 Corolla LE really operates beyond superb! These are the best spark plugs for the 1ZZ-FE engine. Changed these around 42,000 miles, had gone almost eight years with the original ones when the car was built in '04 as an '05 model. I would change the spark plugs after a certain amount of time passes, regardless of mileage. Pre-gapped and ready to go with these 4 babies! Enjoy your Corollas'.

                    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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