PK16TT Platinum TT Spark Plug
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Denso PK16TT Platinum TT Spark Plug

Part No. 4503 Warranty  

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This spark plug features a platinum twin-tip design and a titanium enhanced ground strap.
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Electrode Core Material:Copper
Electrode Tip Material:1.1mm Platinum
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:1.1mm Platinum
Type:Platinum TT
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
DensoPK16TT Platinum TT Spark Plug
 
4.4

(based on 42 reviews)

Ratings Distribution

  • 5 Stars

     

    (27)

  • 4 Stars

     

    (10)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (3)

95%

of respondents would recommend this to a friend.

Pros

  • Easy to install (32)
  • Improves engine efficiency (28)
  • Increases power (21)
  • Durable (16)
  • Lightweight (7)

Cons

    Best Uses

    • Everyday driving (33)
    • Replacement (27)
    • Performance driving (7)
    • Restoration (4)
      • Car & Truck:
      • Casual driver (6), Auto enthusiast (5)
      • Reviewer Profile:
      • Casual driver (17), Auto enthusiast (13), Mechanic (8), Truck enthusiast (3)

    Most Liked Positive Review

     

    Worth the money

    I purchased these plugs to replace Denso Multi-ground Regular Class plugs. I had 85,000 miles on the plugs but started to fail. Denso says they should only last 30,000 milles. I upgraded to...Read complete review

    I purchased these plugs to replace Denso Multi-ground Regular Class plugs. I had 85,000 miles on the plugs but started to fail. Denso says they should only last 30,000 milles. I upgraded to Platinum TT Plug and I can feel the different with the new plugs and think they will give me better performance.
    I spoke to Denso because I feared changing from the Regular Class to any other plugs due to all the story I read on spark failure on Toyota 4runner. Denso says the Platinum TT Plug should last 60,000 miles.
    I would say go ahead and change out to the platium TT plugs. I'm gald I did

    VS

    Most Liked Negative Review

     

    Wrong plug for my application

    Luckily, I compared these plugs to old ones. These were so much longer, that had I installed them and tried to start the car, there would have been catastophic engine damage. No...Read complete review

    Luckily, I compared these plugs to old ones. These were so much longer, that had I installed them and tried to start the car, there would have been catastophic engine damage. No fault of store employee, listed wrong in computer!!

    Reviewed by 42 customers

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    Displaying reviews 1-10

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    4.0

    very good item esay to install

    By frankli

    from chapel hill nc

    About Me Auto Enthusiast, Casual Driver

    Verified Buyer
    3 or more reviews submitted

    Pros

    • Easy To Install
    • Improves Engine Efficiency
    • Increases Power

    Cons

      Best Uses

      • Everyday Driving

      Comments about Denso PK16TT Platinum TT Spark Plug:

      great product

      Comment on this review(earn points)

      (1 of 1 customers found this review helpful)

       
      5.0

      Great sparks plug for 1999Toyota Corolla

      By Toyota Fan

      from Boston

      About Me Casual Driver

      Pros

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

      Cons

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about Denso PK16TT Platinum TT Spark Plug:

        I used these plugs on my 1999 Corolla with 170k miles. I immediately noticed improvement in the acceleration and much quieter idling of the engine. Don't pay hundreds at the garage and see if you can do it yourself for 1/5th the cost. Just ask your AAP sales associate for some help. You'll be surprised how eager they are usually to assist.

        Comment on this review(earn points)

         
        1.0

        Wrong plug for my application

        By jimmie the wrench

        from Albemarle, NC

        About Me Mechanic

        Ask me a question

        Verified Buyer

        Pros

          Cons

            Best Uses

              Comments about Denso PK16TT Platinum TT Spark Plug:

              Luckily, I compared these plugs to old ones. These were so much longer, that had I installed them and tried to start the car, there would have been catastophic engine damage. No fault of store employee, listed wrong in computer!!

              Comment on this review(earn points)

              (1 of 2 customers found this review helpful)

               
              5.0

              Exactly what was needed

              By Angie

              from Pensacola, FL

              Verified Buyer
              Level 1

              Pros

              • Easy To Install
              • Improves Engine Efficiency
              • Increases Power

              Cons

                Best Uses

                • Everyday Driving
                • Replacement

                Comments about Denso PK16TT Platinum TT Spark Plug:

                Recommended by my mechanic

                Comment on this review(earn points)

                (2 of 3 customers found this review helpful)

                 
                5.0

                Great Product

                By John P

                from Claymont, DE

                About Me Casual Driver

                Verified Buyer
                Level 2

                Pros

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

                Cons

                  Best Uses

                  • Everyday Driving
                  • Replacement

                  Comments about Denso PK16TT Platinum TT Spark Plug:

                  I was a little sceptical when I took the first plug out of the box. The plug that came out of my 2001 4runner was the double ground type of plug. I wasn't sure if this plug would be proper to use. I called my local Toyota Dealer and made an inquiry. Once he heard the name Denso he said he would not hesitate to use these parts in his own Toyota vehicle. He told me to make sure the plugs were the same thread legnth going into the head and you will have no problem

                  These plugs work great. Performance was restored and I am certain my gas mileage has improved.

                  Comment on this review(earn points)

                  (16 of 40 customers found this review helpful)

                   
                  1.0

                  Ordered 8, one was used, put back in box

                  By MM

                  from Atco, NJ

                  Verified Buyer
                  Level 2

                  Comments about Denso PK16TT Platinum TT Spark Plug:

                  one of the eight was USED, Had to drive back to store, WAS NOT HAPPY ABOUT THAT !!!

                  Comment on this review(earn points)

                  (16 of 39 customers found this review helpful)

                   
                  2.0

                  Not for all applications (?)

                  Comments about Denso PK16TT Platinum TT Spark Plug:

                  I'm sure this is a nice spark plug however, after setting the gap, the plug did not maintain the gap after driving for a day. I had to go back to my Champion plugs to get a plug that could handle the temperature. The gap fell from .040 to .030?? AND, I know that I gapped the plug properly...

                  I would recommend but I can't use them.

                  Comment on this review(earn points)

                  (19 of 34 customers found this review helpful)

                   
                  5.0

                  Great Price and Great Plugs

                  By 92 dodge rider

                  from Cynthiana, Ky

                  About Me Auto Enthusiast, Mechanic, Truck Enthusiast

                  Ask me a question

                  Verified Buyer
                  3 or more reviews submitted

                  Pros

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

                  Cons

                    Best Uses

                    • Everyday Driving
                    • Replacement

                    Comments about Denso PK16TT Platinum TT Spark Plug:

                    GreatPlugs for the price. I notiched increased proformance right after I installed them. Easy to set the gap. Starts a little faster. More fire power. I will be putting them in both my trucks.

                    Comment on this review(earn points)

                    (18 of 35 customers found this review helpful)

                     
                    5.0

                    Good Plug

                    By Drock

                    from Boston, MA

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

                    Verified Buyer
                    Level 2

                    Pros

                    • Easy To Install

                    Cons

                      Best Uses

                      • Everyday Driving

                      Comments about Denso PK16TT Platinum TT Spark Plug:

                      Replaced the plugs in my Tacoma with these. The truck seems to run a little smoother and the mileage might be a little better, but the old plugs were quite worn. No issues with installation. It's a spark plug, it works well. Not much else to say.

                      Comment on this review(earn points)

                      (22 of 43 customers found this review helpful)

                       
                      5.0

                      I would buy this product again and again

                      By Tefik

                      from Saint louis Mo

                      About Me Casual Driver

                      Pros

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

                      Cons

                        Best Uses

                        • Everyday Driving

                        Comments about Denso PK16TT Platinum TT Spark Plug:

                        This spark plug is made for toyota and I just love how my car's engine got quiter then the ngk g power plugs i had installed before so this denso spark plug is better then ngk g power fine plug time will tell if this plug is gonna last or not i did not regap the plug as per all data reports from library i got it says that 2005 Toyota Corolla spark plug gap is supposed to be between 0.39-0.51 so this plug is pregapped at 0.40 i would not touch the gap if you are installing it for toyota corolla 2003-2008

                        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.

                        14 Questions | 16 Answers
                        Displaying questions 1-10Previous | Next »
                        • Q:

                          Why are heat ranges different on other plugs-what does heat ranges mean
                          Asked on 4/18/2014 by Joey from Destrehan la

                          1 answer

                          • CUSTOMER CARE

                            A:

                            That's a great question, Joey! The heat range of a spark plug is its ability to dissipate heat from the combustion chamber to the cylinder head. The heat range of a spark plug depends primarily on the length of the insulator nose. The heat from the combustion is transferred from the insulator nose through the center electrode to the plug housing, and from there it goes to the cylinder head.

                            Answered on 4/18/2014 by Steve from AAP
                        • Q:

                          Can I install Denso 4503 TT plugs in my 1999 Corolla? I think original ones may have been a regular forked type.
                          Asked on 1/9/2014 by Rao from United States

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hi Rao, glad to assist! Yes, this spark plug is an ideal part for your 1999 Toyota Corolla.

                            Answered on 1/11/2014 by Vincent from AAP
                        • Q:

                          Do these plugs come pre gap
                          Asked on 10/16/2013 by doc

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hi Doc, this Denso PK16TT Platinum TT Spark Plug - Part No. 4503 is pre-gapped at 0.040 inch.

                            Answered on 10/17/2013 by Morgan from AAP
                        • Q:

                          Denso PK16TT Platinum TT Spark Plug, bought thru you for 2007 Hyundai Entourage limited. Are the plugs preset for my vehicle, if not what is the recommended set.
                          Asked on 10/13/2013 by Jerry from Reva, VA

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hi Jerry, this Denso PK16TT Platinum TT Spark Plug - part# 4503 is an exact fit for your 2007 Hyundai Entourage Limited and comes pre-gapped at 0.040".

                            Answered on 10/13/2013 by Vincent from AAP
                        • Q:

                          For my 2007 Jeep Compass 2.4L are these pre gaped? If not what do I need to gap them at?
                          Asked on 9/4/2013 by Adam from Millville, Pa

                          1 answer

                          • CUSTOMER CARE

                            A:

                            This Denso PK16TT Platinum TT Spark Plug - Part No. 4503 is pre-gapped at 0.040 inches for your 2007 Jeep Compass 2.4L. 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 9/4/2013 by Morgan from AAP
                        • Q:

                          Are these spark plugs pre gapped for a 2004 Chevy Tracker or do I need to set the gap before installing? It says Gap: 0.040 on the website.
                          Asked on 8/29/2013 by Bonsaiman48 from Rochester, NY

                          1 answer

                          • CUSTOMER CARE

                            A:

                            This Denso PK16TT Platinum TT Spark Plug - part# 4503 is an exact fit for your 2004 Chevrolet Tracker and is pre-gapped at 0.040". 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 8/29/2013 by Vincent from AAP
                        • Q:

                          The Advance AutoParts store I got these spark plugs from recommended the plugs for Toyota Tacoma 6cyl 2004. I keep reading this type of Tacoma uses a double contact but the person that helped me at the store recommended PK16TT is this a good change.?
                          Asked on 7/12/2013 by Luis from Miami, fl

                          1 answer

                          • CUSTOMER CARE

                            A:

                            This Denso PK16TT Platinum TT Spark Plug - Part No. 4503 should work fine with your 2004 Toyota Tacoma. It is a new platinum twin-tip design with titanium enhanced ground strap. 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 7/13/2013 by Morgan from AAP
                        • Q:

                          What do I set the gap for a 1998 Dodge Dakota? And are these plugs good for my Truck? I will be given it a tune up next month. An I would like to know if I have to chance the Dis Cap and Rotor.
                          Asked on 5/12/2013 by Kennie from Warren, RI

                          1 answer

                          • CUSTOMER CARE

                            A:

                            With reference to your inquiry on this Denso PK16TT Platinum TT Spark Plug (Part No. 4503), please provide the engine size of your vehicle application or you can contact us directly at 1-877-ADVANCE (238-2623) or visit your nearest Advance Auto Parts store for further assistance.

                            Answered on 5/12/2013 by Max from AAP
                        • Q:

                          Are these denso platinum plugs pre-gapped SPECIFICALLY to fit a 2003 KIA Sorento???? Need to know right away. Thanks.
                          GOD BLESS You.
                          SHALOM/Peace,
                          Ms. Scherelyn
                          Asked on 5/3/2013 by Beloved Beloved

                          1 answer

                          • CUSTOMER CARE

                            A:

                            This Denso PK16TT Platinum TT Spark Plug (Part No. 4503) is an exact fit for your 2003 Kia Sorento 3.5L 3497CC V6 FI. 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 5/3/2013 by Max from AAP
                        • Q:

                          I purchased these for a 95 Mercury Villager. I went to the Denso site and it said: "New DENSO spark plugs are pre-gapped and do not need changing. It is also important to note that DENSO plugs with a U-groove ground electrode require a special gap feeler gauge due to the U-groove". The gap is set at .040 out the box but I need them to be in between .032-.034. If they are pre-set and require a "special gap feeler gauge", how am I supposed to narrow the gap with the $1 gap gauge you guys sell?
                          Asked on 11/25/2012 by Matthew from NC

                          1 answer

                          • CUSTOMER CARE

                            A:

                            We greatly appreciate your interest in Advance Auto Parts. Please visit your nearest Advance Auto store or call us directly at 1-877-ADVANCE (238-2623) and one of our technicians would be more than happy to assist you.

                            Answered on 11/26/2012 by Vincent from AAP
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