PK20TT Platinum TT Spark Plug
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Denso PK20TT Platinum TT Spark Plug

Part No. 4504 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:20
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
DensoPK20TT Platinum TT Spark Plug
 
4.5

(based on 49 reviews)

Ratings Distribution

  • 5 Stars

     

    (31)

  • 4 Stars

     

    (13)

  • 3 Stars

     

    (4)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

96%

of respondents would recommend this to a friend.

Pros

  • Easy to install (40)
  • Improves engine efficiency (37)
  • Increases power (34)
  • Durable (22)
  • Lightweight (11)

Cons

  • No improvement in performance (4)

Best Uses

  • Everyday driving (45)
  • Replacement (32)
  • Performance driving (12)
  • Restoration (6)
  • Racing (3)
    • Car & Truck:
    • Auto enthusiast (6), Casual driver (5), Mechanic (3)
    • Reviewer Profile:
    • Casual driver (22), Auto enthusiast (20), Mechanic (10), Truck enthusiast (3)

Most Liked Positive Review

 

Excellent replacement spark plug...

2004 VW Passat GLS 1.8T AWM 5spd, worked great as a replacement for the stock NGK laser platinums. Very similar in design to the NGKs, (although the NGK plug has the finer tip...Read complete review

2004 VW Passat GLS 1.8T AWM 5spd, worked great as a replacement for the stock NGK laser platinums. Very similar in design to the NGKs, (although the NGK plug has the finer tip center electrode, both plugs have similar insulator and metal designs) with the 2 welded platinum firing tips. Old plugs were still gapped OK but had some deposits on them and was causing a slight misfire / lopiness at idle but no check engine light. These Densos solved that problem immediately. Also noticed improved off idle and part throttle response. Seems like less gas pedal is required to motivate the vehicle. Engine runs smoother as well. Car ran great, but now runs even better. 166,000 miles on the ODO and runs like a new car. Very satisfied with this purchase. Also, a set of 4 cost the same as 1 NGK plug... I recommend these plugs, you should not be disappointed.

VS

Most Liked Negative Review

 

Great Plug ... But

After 14,000 miles I pulled the spark plugs to take a look and found that the ground strap tips had eroded away. On the good side the plugs are super clean and the center...Read complete review

After 14,000 miles I pulled the spark plugs to take a look and found that the ground strap tips had eroded away. On the good side the plugs are super clean and the center electrode shows no signs of wear. I did not replace these plugs with the same Denso Platinum TT but will use them again if Denso fixes this problem and make the ground electrode more durable. I would even pay more money if this spark plug design provided a longer service life. I would recommend this product to a friend with the understanding these plugs will only last one year more or less as designed to function.

Reviewed by 49 customers

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Displaying reviews 1-10

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4.0

Noticeable difference.

By 10zero

from San Antonio, Tx

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

Ask me a question

Verified Buyer
3 or more reviews submitted

Pros

  • Improves Engine Efficiency
  • Increases Power

Cons

    Best Uses

    • Everyday Driving
    • Replacement

    Comments about Denso PK20TT Platinum TT Spark Plug:

    My girlfriends car needed a tune up. I researched several spark plugs and went with Denso platinum TT. I immediately noticed the engine running smoother and a little pick up nothing serious but noticeable. 200 miles later and gas mileage has increased slightly. The Denso platinum TT is a good choice for this 2003 Honda Accord LX 4cyl.

    Comment on this review(earn points)

     
    5.0

    Significant performance improvement

    By Ken

    from Kohler, WI

    About Me Casual Driver

    Verified Buyer
    3 or more reviews submitted

    Pros

    • Easy To Install
    • Improves Engine Efficiency
    • Increases Power

    Cons

      Best Uses

      • Everyday Driving
      • Replacement

      Comments about Denso PK20TT Platinum TT Spark Plug:

      The spark plugs were easy to install. Upon installation, there was a noticeable improvement in engine performance, partly because it was discovered the first cylinder had a slightly loose spark plug, but it was not solely the cause of accelleration issues.

      Comment on this review(earn points)

       
      4.0

      not pregapped

      By jeff

      from south bend IN

      Verified Buyer

      Pros

      • Easy To Install

      Cons

      • No Improvement In Performance

      Best Uses

      • Everyday Driving

      Comments about Denso PK20TT Platinum TT Spark Plug:

      I learned the hard way. ALWAYS check the gap before install!!!!

      Comment on this review(earn points)

      (0 of 2 customers found this review helpful)

       
      3.0

      No improvement

      By bzalto

      from Syracuse, NY

      About Me Auto Enthusiast

      Verified Buyer
      Level 1

      Pros

      • Easy To Install

      Cons

      • No Improvement In Performance

      Best Uses

      • Replacement

      Comments about Denso PK20TT Platinum TT Spark Plug:

      I had a slight miss at idle and it seems a bit worse after installing the Denso. 95 Volvo 850T.

      Comment on this review(earn points)

       
      5.0

      Works great in my Camry

      By JJ

      from State College PA

      About Me Auto Enthusiast

      Verified Buyer
      3 or more reviews submitted

      Pros

      • Easy To Install
      • Increases Power

      Cons

        Best Uses

        • Everyday Driving

        Comments about Denso PK20TT Platinum TT Spark Plug:

        I recently acquired a 98 Camry with 100K miles and an incomplete maintenance history. I wanted to replace the plugs and wires to have a baseline, and these came up as a good replacement. Installation was quick and easy, and the response does seem a little better, though it's hard to say what's responsible for that.
        These might not last as long as the double-electrode platinums, but I don't mind changing plugs a little more often, and seeing how the top end is doing.

        Comment on this review(earn points)

        (0 of 1 customers found this review helpful)

         
        4.0

        nice

        By Audi 100 s

        from Des Moines, IA

        About Me Auto Enthusiast, Casual Driver, Competitive Driver

        Level 1

        Pros

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

        Cons

          Best Uses

          • Everyday Driving
          • Performance Driving
          • Replacement

          Comments about Denso PK20TT Platinum TT Spark Plug:

          nice plugs if I gapped them properly (im lazy) they would be awesome less power than my previous bosch for not sittin properly they work really well maybe ill get unlazy after this but probably not oh well awesome plug nonetheless

          Comment on this review(earn points)

          (15 of 33 customers found this review helpful)

           
          5.0

          Turn-up with these plugs passed e-test

          By La Machine

          from Ontario, Canada

          About Me Auto Enthusiast

          Level 2

          Pros

          • Easy To Install
          • Improves Engine Efficiency
          • Increases Power

          Cons

            Best Uses

            • Everyday Driving

            Comments about Denso PK20TT Platinum TT Spark Plug:

            I did an engine turn-up with these Denso spark plugs on my 95 Camry which failed e-tests previously. These plugs are way way better than the Bosch fusion spark plugs/+4 that I had on the Camry comparing the results from failed and passed e-tests. The Bosch spark plugs showed lots of carbon built-up when I pulled them out. The Denso spark plugs are cheaper and better for my Camry.

            Comment on this review(earn points)

            (17 of 33 customers found this review helpful)

             
            4.0

            Good product

            By shannon53511

            from beloit, wi

            About Me Casual Driver

            Ask me a question

            Verified Buyer
            Level 3

            Pros

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

            Cons

              Best Uses

              • Everyday Driving
              • Replacement

              Comments about Denso PK20TT Platinum TT Spark Plug:

              Improved my power/torque and gas mileage by 20 miles per tank

              Comment on this review(earn points)

              (16 of 33 customers found this review helpful)

               
              5.0

              Great value.

              By Nutherfan

              from Shelby, OH

              About Me Casual Driver

              Verified Buyer
              Level 3

              Pros

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

              Cons

                Best Uses

                • Everyday Driving

                Comments about Denso PK20TT Platinum TT Spark Plug:

                Really like the change in performance I have noticed so far.

                Comment on this review(earn points)

                (16 of 32 customers found this review helpful)

                 
                5.0

                Product performed well- was correct part

                By eb

                from marysville ohio

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

                Ask me a question

                Verified Buyer
                3 or more reviews submitted

                Pros

                • Durable
                • Easy To Install

                Cons

                  Best Uses

                  • Everyday Driving
                  • Replacement

                  Comments about Denso PK20TT Platinum TT Spark Plug:

                  product met all standards

                  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.

                  9 Questions | 11 Answers
                  Displaying questions 1-9
                  • Q:

                    What's the recommended gap for a 2009 GTi that's been "chipped"? I just bought 4 Denso plugs and installed 5/1 (Order #18772642) and replaced the 4 Coil packs 2 days ago and am guessing that the Denso plugs aren't working well as I'm getting numerous misfires (Code P0302/304)!
                    Asked on 6/3/2013 by dominik12 from Oak Hill, VA

                    1 answer

                    • CUSTOMER CARE

                      A:

                      This Denso PK20TT Platinum TT Spark Plug - Part No. 4504 is an exact fit for your 2009 Volkswagen GTI and is recommended to gap 0.044 inches. The code P0302 and P0304 are a Cylinder Number 2 Misfire. Start at the front of the engine, where all the accessories are mounted (alternator, power steering pump, etc) then count each each spark plug from left to right in normal order. The cylinder to the left will be 1, and the cylinder to the far right will be 4. When you locate number 2 cylinder, check the plug wire for damage. Remove the spark plug and inspect it for wear. A new set of spark plugs and wires will probably fix your problem. 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 6/3/2013 by Morgan from AAP
                  • Q:

                    Can anyone tell me what the suggested gap for the Audi A3 2.0t is?
                    Asked on 12/10/2012 by gil from Nashville TN

                    1 answer

                    • CUSTOMER CARE

                      A:

                      With reference to this Denso PK20TT Platinum TT Spark Plug - part# 4504, the stock spark plug gap for your Audi A3 2.0t should be 0.032" and if you are chipped, you should run 0.028". 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 12/11/2012 by Vincent from AAP
                  • Q:

                    how many are in the pack
                    Asked on 10/15/2012 by Jose from waukegan,IL

                    1 answer

                    • CUSTOMER CARE

                      A:

                      This Denso PK20TT Platinum TT Spark Plug -part# 4504 is sold individually. 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 10/15/2012 by Vincent from AAP
                  • Q:

                    My 2004 saturn redline says it needs to be gapped at 1mm. Do these come pre gapped?
                    Asked on 8/1/2012 by Mark

                    1 answer

                    • CUSTOMER CARE

                      A:

                      This Denso PK20TT Platinum TT Spark Plug (Part# 4504) is an exact fit for your 2004 Saturn ION Red Line and it is pre-gapped @ 0.040 inch (1.016 millimeter). For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

                      Answered on 8/1/2012 by Rick from AAP
                  • Q:

                    I bought these plugs for 1996 Toyota Camry (2.2L 4 cylinder). These plugs come pre-gapped at 0.040 inch. The manual states the plug gap is supposed to be 0.044 inch. Should the gap be adjusted to 0.044 or should it be left at 0.040?
                    Asked on 1/16/2012 by Al from Greenville, SC

                    1 answer

                    • CUSTOMER CARE

                      A:

                      It is always better to go according to the vehicle owner’s manual as it states the plug gap is supposed to be 0.044 inch to avoid intermittence.

                      Answered on 1/16/2012 by Vincent from AAP
                  • Q:

                    Does this product fits to my 2002 Vw Passat GLS 1.8T FWD with automatic transmission? According to your website it fits but some other websites says it doesn't. Thanks...
                    Asked on 12/15/2010 by Sunfire from Pittsburgh, PA

                    2 answers

                    • CUSTOMER CARE

                      A:

                      Yes, this part fits a 2002 Volkswagen Passat 1.8L 1781CC L4 FI Turbo & 2002 Volkswagen Passat GLS 4 Motion 2.8L 2771CC.

                      Answered on 12/16/2010 by Ron the Auto Parts Rebel from AAP
                    • CUSTOMER CARE

                      A:

                      Yes, this part fits a 2002 Volkswagen Passat 1.8L 1781CC L4 FI Turbo & 2002 Volkswagen Passat GLS 4 Motion 2.8L 2771CC.

                      Answered on 12/16/2010 by Anonymous
                  • Q:

                    My question is:
                    Spark Plugs are easy to install in 2005 Honda Civic?
                    Any simple mechanic can install it?
                    There need to change other parts such as cables, rubber etc?
                    Thanks
                    Asked on 9/10/2010 by Hilton from Nashua NH

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Yes spark plugs are easy to install. I do recommend that you change your spark plug wires with the new spark plugs for a smoother running engine and better fuel economy.

                      Answered on 9/10/2010 by Kevin from AAP
                  • Q:

                    Will these spark plugs last 100,000 miles as the original plugs have? My car's manufacturer recommends 100,000 mile interval change. I have not installed these plugs yet.
                    Asked on 7/8/2010 by Anonymous from Cleveland, Ohio

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Aftermarket spark plugs are known and can last up to 100,000 miles. It depends on how you drive the vehicle and the condition of it.

                      Answered on 7/9/2010 by Kevin from AAP
                  • Q:

                    Are these spark plugs PRE gapped?
                    Asked on 7/4/2010 by Kyle from Evans, GA

                    2 answers

                    • CUSTOMER CARE

                      A:

                      They should come pre-gapped for the application they are being used for.

                      Answered on 7/6/2010 by Mike from AAP
                    • CUSTOMER CARE

                      A:

                      They should come pre-gapped for the application they are being used for.

                      Answered on 7/6/2010 by Mike from AAP
                  Displaying questions 1-9

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