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 14 reviews)

Ratings Distribution

  • 5 Stars

     

    (13)

  • 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 (10)
  • Durable (9)
  • Easy to install (8)
  • Increases power (6)
  • Lightweight (3)

Cons

    Best Uses

    • Everyday driving (12)
    • Replacement (8)
    • Performance driving (4)
    • Restoration (3)
      • Car & Truck:
      • Casual driver (5)
      • Reviewer Profile:
      • Casual driver (6), Mechanic (3)

    Reviewed by 14 customers

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    Displaying reviews 1-10

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    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)

       
      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)

         
        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)

           
          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)

             
            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)

             
            5.0

            Fine OEM replacement plug

            By Roger

            from Largo, FL

            About Me Mechanic

            Verified Buyer
            Level 1

            Pros

            • Durable

            Cons

            • none

            Best Uses

            • Replacement

            Comments about Denso SK16R11 Iridium Long Life Spark Plug:

            Replaced the original plugs as preventive maintenance on a 2004 Corolla with 115K miles. The original plugs were running fine and had a near-perfect burn pattern, so there was no change in performance. The plugs were gapped correctly (0.043") out of the box - a nice touch. The old plugs had to be removed by carefully working them back-and-forth since they were in there for 8 years and this IS an aluminum head - but they extracted with no damage - a good testament to Denso's plating on the threads. I used anti-seize compound on the threads of the replacement plugs to eliminate future extraction problems. If you do this, use only a light coating applied with a Q-tip to control the coverage. Do NOT get any compound on the insulator or electrodes, since it is graphite-based and conductive. If you do, clean thoroughly with a strong low-residue solvent, such as acetone, 91% alcohol, or disk brake cleaner. As a side note on this engine, the coil-over-plug assembly is a tight clearance next to the wiring harness on the cam cover. If it cannot be removed with a firm upward pull, do not try to pry it up or you will crack the coil assembly. Instead use a screwdriver to pry the rear wiring harness cover back since the sharp edge of the coil assembly is caught on the plastic harness cover.

            Comment on this review(earn points)

             
            5.0

            work great

            By A MAN

            from CASWELL,NC

            Verified Buyer
            Level 3

            Pros

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

            Cons

              Best Uses

              • Everyday Driving
              • Performance Driving
              • Replacement
              • Restoration

              Comments about Denso SK16R11 Iridium Long Life Spark Plug:

              I BOUGHT THIS PRODUCT FOR MY 2004 PONTIAC VIBE. THE ENGINE HAD 90000 MILES ON IT SO IT WAS TIME TO REPLACE THE SPARK PLUGS.THESE PLUGS ARE EXACT SAME ONES THAT CAME FROM THE FACTORY.WHEN I TOOK OUT THE OLD PLUGS THEY HAD VERY LITTLE WEAR IN THEM.I REALIZED THAT THESE PLUGS REALLY DO LAST A LONG TIME.THEY COST ALOT MORE THAN OTHER PLUGS BUT ARE WELL WORTH IT IN THE LONG RUN BECAUSE THEY LAST SO LONG.THE NEW PLUGS WERE PREGAP SO THEY WERE READY TO INSTALL.WHEN INSTALLING THE NEW PLUGS BE SURE TO PUT ANTISEIZE ON THE THREADS TO MAKE SURE YOU WILL BE ABLE TO REMOVE THEM THE NEXT TIME THEY NEDD REPLACING.REALLY GREAT PLUG

              Comment on this review(earn points)

               
              4.0

              Easy to install

              By cardinal

              from mechanicsburg pa

              About Me Casual Driver

              Verified Buyer

              Pros

              • Easy To Install
              • Lightweight

              Cons

                Best Uses

                • Everyday Driving

                Comments about Denso SK16R11 Iridium Long Life Spark Plug:

                Ready to go and easy to install

                Comment on this review(earn points)

                 
                5.0

                Toyota owners save money!

                Pros

                • Cheaper than the dealer
                • Durable
                • Easy To Install
                • Improves Engine Efficiency

                Cons

                  Best Uses

                  • Everyday Driving
                  • Performance Driving
                  • Racing
                  • Replacement
                  • Restoration

                  Comments about Denso SK16R11 Iridium Long Life Spark Plug:

                  Why waste money at the dealer when you can get the same exact part here for a fraction of the cost.

                  • Car & Truck:
                  • Auto Enthusiast, Casual Driver, Shadetree Mechanic

                  Comment on this review(earn points)

                   
                  5.0

                  Replacement for a Toyota Corolla

                  By Father of a daughter with a car

                  from Stuarts Draft, Virginia

                  Verified Buyer

                  Pros

                  • Easy To Install
                  • Improves Engine Efficiency

                  Cons

                  • none

                  Best Uses

                  • Everyday Driving
                  • Replacement

                  Comments about Denso SK16R11 Iridium Long Life Spark Plug:

                  Replacement tune-up spark plugs for a 2004 Toyota Corolla. Iridium plugs for long life. Worth the price!

                  • Car & Truck:
                  • Backyard Mechanic, Casual Driver

                  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 | 4 Answers
                  Displaying questions 1-3
                  • 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 1-3

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