PK16TT Platinum TT Spark Plug
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Denso PK16TT Platinum TT Spark Plug

Part No. 4503 Warranty Details  

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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 48 reviews)

Ratings Distribution

  • 5 Stars

     

    (32)

  • 4 Stars

     

    (11)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (3)

96%

of respondents would recommend this to a friend.

Pros

  • Easy to install (36)
  • Improves engine efficiency (32)
  • Increases power (25)
  • Durable (17)
  • Lightweight (7)

Cons

    Best Uses

    • Everyday driving (38)
    • Replacement (30)
    • Performance driving (9)
    • Restoration (4)
    • Racing (3)
      • Car & Truck:
      • Casual driver (6), Auto enthusiast (5)
      • Reviewer Profile:
      • Casual driver (21), Auto enthusiast (16), Mechanic (9), Competitive driver (3), 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 48 customers

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    Displaying reviews 1-10

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    4.0

    Quality Replacement

    By 

    from San Antonio, TX

    About Me Casual Driver

    Level 4

    Pros

    • Easy To Install

    Cons

      Best Uses

      • Everyday Driving
      • Replacement

      Comments about Denso PK16TT Platinum TT Spark Plug:

      Quality replacement product for my 1995 Honda Accord V6 OEM plugs. I'm catching up on a lot of very deferred maintenance and these plugs were a good balance of value and quality. All were in excellent condition out of the box, no defects or imperfections, and all plugs fit perfectly (no sketchy threads or other issues you might see in low-quality products). I considered higher performance grade plugs as I am trying to extend the life of my vehicle as much as possible while continuing to get acceptable driving performance but I chose to save the money and I am glad that I did.

      Comment on this review(earn points)

       
      5.0

      Great Sparks Pluigs

      By 

      from Orlando Florida

      About Me Casual Driver

      Pros

      • Improves Engine Efficiency
      • Increases Power

      Cons

        Best Uses

        • Everyday Driving
        • Performance Driving

        Comments about Denso PK16TT Platinum TT Spark Plug:

        Just Dropped a set of these plugs into my 2009 Dodge Caliper 2.0, 74k, noticed as soon as I started engine better performance, better idling, and fuel economy. If you decided to use these plugs double check gap.

        Comment on this review(earn points)

        (2 of 9 customers found this review helpful)

         
        5.0

        Longevity and OE performance

        By 

        from Cincinnati, OH

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

        Level 4

        Pros

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

        Cons

          Best Uses

          • Everyday Driving
          • Replacement

          Comments about Denso PK16TT Platinum TT Spark Plug:

          A great option vs. OE copper plugs. Instead of 30,000 mile changes with copper...these can go 90,000 due to the harder tips. Sure you will drop .1 MPG but it's worth not having to replace 3x more often and in the end cost less.

          Comment on this review(earn points)

          (5 of 13 customers found this review helpful)

           
          5.0

          I a spark plug

          By 

          from Newnan GA

          About Me Auto Enthusiast

          Verified Buyer
          Helpful Reviewer

          Pros

          • Easy To Install
          • Improves Engine Efficiency

          Cons

            Best Uses

            • Everyday Driving

            Comments about Denso PK16TT Platinum TT Spark Plug:

            It Works.

            Comment on this review(earn points)

            (7 of 11 customers found this review helpful)

             
            5.0

            Great plugs for a Dodge 4.7L Flex

            By 

            from Tampa, FL

            About Me Auto Enthusiast

            Verified Buyer
            Level 2

            Pros

            • Improves Engine Efficiency
            • Increases Power
            • Smooth Idle

            Cons

              Best Uses

              • Replacement

              Comments about Denso PK16TT Platinum TT Spark Plug:

              After just 35k, the Dodge 4.7L was running pretty rough and gas mileage was starting to drop off. I did a little research and found a few fellow drivers commenting that they liked these plugs. You can add me to that list. The engine is idling better than new. Instead of sounding like I put a high duration cam in it, it's purring like a kitten. So much so that the wife even noticed it, and she usually wouldn't even notice a cylinder misfiring! Fuel mileage is a little better too. It's only been a couple of week, but so far these plugs are a definite winner.

              Comment on this review(earn points)

              (13 of 24 customers found this review helpful)

               
              5.0

              Daily driving Matrix that plays in AutoX

              By 

              from Dayton, Ohio

              About Me Casual Driver, Competitive Driver

              Verified Buyer
              Level 3

              Pros

              • Easy To Install
              • Increases Power

              Cons

                Best Uses

                • Everyday Driving
                • Performance Driving
                • Racing

                Comments about Denso PK16TT Platinum TT Spark Plug:

                My 03 matrix has about 125,000 miles on it. Some of those miles with the sportscar club on a autoX track.
                The pocketlogger agrees with what I thought I felt; better response time, slightly faster rev. As a bonus, they last much longer than the OEM did. (Plugs may last 100K mi for drivers that are not as fussy about their engines.)

                Comment on this review(earn points)

                (9 of 24 customers found this review helpful)

                 
                4.0

                very good item esay to install

                By 

                from chapel hill nc

                About Me Auto Enthusiast, Casual Driver

                Verified Buyer
                Level 3

                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)

                  (11 of 20 customers found this review helpful)

                   
                  5.0

                  Great sparks plug for 1999Toyota Corolla

                  By 

                  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)

                    (15 of 24 customers found this review helpful)

                     
                    1.0

                    Wrong plug for my application

                    By 

                    from Albemarle, NC

                    About Me Mechanic

                    Ask me a question

                    Verified Buyer
                    Level 2

                    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)

                          (12 of 26 customers found this review helpful)

                           
                          5.0

                          Exactly what was needed

                          By 

                          from Pensacola, FL

                          Verified Buyer
                          Helpful Reviewer

                          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)

                            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.

                            23 Questions | 25 Answers
                            Displaying questions 1-10Previous | Next »
                            • Q:

                              Can this product be used in a 2001 Elantra GLS 2.0L engine and if so do I need to make any other changes to accomidate them?
                              Asked on 2/27/2015 by jimmy from Saint Peters,Missouri

                              1 answer

                              • CUSTOMER CARE

                                A:

                                Hi Jimmy, happy to help you! This part is an exact fit for your 2001 Hyundai Elantra Gls 2.0L and you need not have to make any changes to install this spark plug. For more information for setting the sprak plug gaps please visit this link. URL - http://densoautoparts.com/spark-plug-installation

                                Answered on 2/27/2015 by Steve from AAP
                            • Q:

                              I BOUGHT THE DENSO #4503 PK16TT...ON YOUR ITEM DESCRIPTION IT SAYS THAT THE GAP IS 0.040 AND THE DENSO WEBSITE SAYS THE GAP IS 0.028... I'M GOING TO INSTALL THEM ON MY 1999 TOYOTA TACOMA 2.4 TRUCK. I INSTALLED THE STOCK DENSO'S AND IT HAS A ROUGH IDLE. SHOULD I GAP THE NEW TT PLUGS OR JUST INSTALL THEM THE WAY THEY ARRIVE.
                              Asked on 2/23/2015 by ART from United States

                              1 answer

                              • CUSTOMER CARE

                                A:

                                Happy to assist you Art! I suggest gapping the plugs to Denso’s specifications.

                                Answered on 2/24/2015 by Panda from AAP
                            • Q:

                              the web site says exact replacement but my engine has dual electrode spark plugs with a warning in the engine bay to only use dual electrode replacements. Will these work? please explain.
                              Asked on 2/7/2015 by dave from moyock, nc

                              1 answer

                              • CUSTOMER CARE

                                A:

                                Hi Dave! Since you didn't mention the specific vehicle, it's hard to tell for sure. To give you the correct information I would need the year, make, model and engine size of the vehicle.

                                Answered on 2/8/2015 by Solomon
                            • Q:

                              How many would i need for a 2000 dodge durango 5.9l v8?
                              Asked on 10/13/2014 by Alex

                              1 answer

                              • CUSTOMER CARE

                                A:

                                Good question, Alex! You will need four of these for a 2000 Dodge Durango 5.9L

                                Answered on 10/14/2014 by Solomon
                            • Q:

                              what is the plug pre-gapped at? Should I gap it according to owners manual? Is it ok to use for 1996 Toyota T100 SR5? I think the ones installed is a double tip.
                              Asked on 10/12/2014 by Tom from Gainesville, VA

                              1 answer

                              • CUSTOMER CARE

                                A:

                                Hi Tom, glad to serve you! This part is an exact fit for your 1996 Toyota T100 SR5 and it is always recommended to gap the spark plugs according to owners manual.

                                Answered on 10/13/2014 by Steve from AAP
                            • Q:

                              How many are included in a pack?
                              Asked on 9/21/2014 by CedesLadii

                              1 answer

                              • CUSTOMER CARE

                                A:

                                Hi CedesLadii, glad to assist you! This spark plug is sold individually.

                                Answered on 9/23/2014 by Solomon
                            • Q:

                              i bought 4 pk16tt 4503 plugs for my 03 vw jetta 2.0 - are they pregapped? gap appears to be .034 - i thought it should be 0.043
                              Asked on 9/1/2014 by Mathew from United States

                              1 answer

                              • CUSTOMER CARE

                                A:

                                Hi Mathew, glad to assist you! This spark plug is pre-gapped at 0.040 inches and it is an exact fit for your vehicle.

                                Answered on 9/2/2014 by Vincent from AAP
                            • Q:

                              What is the spark plug gap for a 96 elantra 1.8l?
                              Asked on 8/30/2014 by Larry

                              1 answer

                              • CUSTOMER CARE

                                A:

                                Hi Larry, glad to assist you! This spark plug is pre-gapped at 0.044 inch and is an exact fit for your vehicle.

                                Answered on 8/31/2014 by Vincent from AAP
                            • Q:

                              ARE THESE PLUGS PRE-GAPPED FOR A 2009 KIA SPORTAGE
                              Asked on 5/16/2014 by DEE from ORLANDO, FL

                              1 answer

                              • CUSTOMER CARE

                                A:

                                Hi Dee, good question! Yes, this spark plug is pre-gapped at 0.040 inch.

                                Answered on 5/16/2014 by Steve from AAP
                            • 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
                            Displaying questions 1-10Previous | Next »

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