SK16R11 Iridium Long Life Spark Plug
Hover over the image to zoom in
Share this:

Denso SK16R11 Iridium Long Life Spark Plug

Part No. 3324 Warranty Details  

See if this part fits a specific vehicle.

Check Vehicle Fit

This long-life spark plug features a special iridium alloy (90% Ir) and a platinum ground strap.
Back To Top
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
 
4.8

(based on 24 reviews)

Ratings Distribution

  • 5 Stars

     

    (22)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

96%

of respondents would recommend this to a friend.

Pros

  • Improves engine efficiency (16)
  • Durable (15)
  • Easy to install (15)
  • Increases power (12)
  • Lightweight (3)

Cons

No Cons

Best Uses

  • Everyday driving (21)
  • Replacement (15)
  • Performance driving (5)
  • Restoration (3)
    • Car & Truck:
    • Casual driver (5)
    • Reviewer Profile:
    • Casual driver (11), Auto enthusiast (6), Mechanic (6)

Most Liked Positive Review

 

Identical to OEM

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...Read complete review

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.

VS

Most Liked Negative Review

 

The customer service was poor

The product is recommended by the car manufacturer.

The product is recommended by the car manufacturer.

Reviewed by 24 customers

Displaying reviews 1-10

Back to top

Previous | Next »

 
5.0

Well Pleased

By 

from Huntsville, AL

About Me Casual Driver, Mechanic

Verified Buyer

Pros

    Cons

      Best Uses

      • Everyday Driving
      • Replacement

      Comments about Denso SK16R11 Iridium Long Life Spark Plug:

      These spark plugs fit Pontiac Vibe and Toyota Corolla/Matrix engines and last over 100,000 miles. These are exact OEM-recommended replacements. The spark plugs are installed in a deep sealed cavity atop the engine. Installation requires using a spark plug socket containing a rubber retainer insert and securely duct-taping the socket to a 6-inch extension so the socket won't pull off when removing the socket and extension from the spark plug down in the deep cavity. The spark plug threads must also be very lightly and carefully coated with Permatex anti-seize lubricant. The spark plugs do not come pre-lubricated.

      Comment on this reviewHelp Icon(earn points)

       
      1.0

      The customer service was poor

      By 

      from Chantilly, VA

      About Me Casual Driver

      Verified Buyer

      Pros

      • Durable

      Cons

      • No Improvement In Performance

      Best Uses

      • Everyday Driving

      Comments about Denso SK16R11 Iridium Long Life Spark Plug:

      The product is recommended by the car manufacturer.

      Comment on this reviewHelp Icon(earn points)

       
      5.0

      Best plugs for Toyotas....!!

      By 

      from Florissant, MO

      About Me Casual Driver

      Pros

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

      Cons

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about Denso SK16R11 Iridium Long Life Spark Plug:

        I installed these in my 2012 Camry LE. These increased my MPG by seven miles to the gallon. WOW.

        Comment on this reviewHelp Icon(earn points)

         
        5.0

        The Best.

        By 

        from Cedar Rapids,IA

        About Me Auto Enthusiast

        Verified Buyer
        Level 2

        Pros

        • Increases Power

        Cons

          Best Uses

          • Replacement

          Comments about Denso SK16R11 Iridium Long Life Spark Plug:

          This is THE premium spark plug for Toyota automobiles.

          Comment on this reviewHelp Icon(earn points)

          (1 of 1 customers found this review helpful)

           
          5.0

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

          By 

          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 reviewHelp Icon(earn points)

            (1 of 3 customers found this review helpful)

             
            5.0

            Nothing better than OEM

            By 

            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 reviewHelp Icon(earn points)

              (3 of 6 customers found this review helpful)

               
              5.0

              What Toyota Recommends

              By 

              from Knoxville, TN

              About Me Casual Driver

              Verified Buyer
              Helpful Reviewer

              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 reviewHelp Icon(earn points)

               
              5.0

              Awesome Plugs for your 1st Gen Prius

              By 

              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 reviewHelp Icon(earn points)

                (3 of 3 customers found this review helpful)

                 
                5.0

                Good OEM Plug

                By 

                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 reviewHelp Icon(earn points)

                   
                  5.0

                  The Best Denso Spark Plug

                  By 

                  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 reviewHelp Icon(earn points)

                    Displaying reviews 1-10

                    Back to top

                    Previous | Next »

                    Do you have questions about this product?(earn points for answers!)

                     

                    Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

                    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

                    Do you have a question about this product? 

                    Create or view your online garage

                    Check out the specials in our monthly flyer.

                     
                     
                    Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.