PK20TT Platinum TT Spark Plug
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Denso PK20TT Platinum TT Spark Plug

Part No. 4504 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: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 55 reviews)

Ratings Distribution

  • 5 Stars

     

    (37)

  • 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 (45)
  • Improves engine efficiency (41)
  • Increases power (37)
  • Durable (25)
  • Lightweight (11)

Cons

  • No improvement in performance (4)

Best Uses

  • Everyday driving (49)
  • Replacement (35)
  • Performance driving (13)
  • Restoration (7)
  • Racing (4)
    • Car & Truck:
    • Auto enthusiast (6), Casual driver (5), Mechanic (3)
    • Reviewer Profile:
    • Casual driver (25), Auto enthusiast (23), Mechanic (11), Truck enthusiast (5), Competitive driver (3)

Most Liked Positive Review

 

Noticeable difference.

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...Read complete review

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.

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 55 customers

Displaying reviews 1-10

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5.0

You can't go wrong with Denso in a Japanese import

By 

from Colorado

Verified Buyer

Comments about Denso PK20TT Platinum TT Spark Plug:

It's a spark plug. Pretty plain and simple. But, I have used Bosch in my Toyotas on a couple of occasions, and they just don't seem to perform as well as the Denso. So, I am happy to spend an extra $5 or so and get the good stuff ..

Comment on this reviewHelp Icon(earn points)

 
5.0

great plugs!

By 

from Kittanning, PA

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

Verified Buyer
3 or more reviews submitted

Pros

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

Cons

    Best Uses

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

    Comments about Denso PK20TT Platinum TT Spark Plug:

    I bought six denso spark plugs for my 2006 dodge Dakota 3.7L v6. I was badly in need of a tune up, my old plugs were so worn out that the gap was almost a quarter of an inch. since replacing the plugs with the denso plugs, ive noticed a big increase in performance for a great price. the plugs are made of quality materials and are worth every penny. I have even noticed an increase in fuel economy. which is great because fuel prices keep going up. I highly recommend these plugs to anyone who wants to increase performance while saving money

    Comment on this reviewHelp Icon(earn points)

    (27 of 52 customers found this review helpful)

     
    5.0

    2007 Honda Civic EX

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    By 

    from Punxsutawney, PA

    About Me Auto Enthusiast, Casual Driver

    Ask me a question

    Level 4

    Pros

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

    Cons

      Best Uses

      • Everyday Driving
      • Replacement

      Comments about Denso PK20TT Platinum TT Spark Plug:

      Bought these for my Dad's Civic as he was still running the old factory Iridium plugs at 100,000+ miles. We figured it wasn't worth buying a new set of Iridiums seeing as the car was already well over 100,000 miles. We were a little skeptical about the twin tip design but we decided to go with it. Platinum was the next best material under Iridium in terms of endurance and longer amount of miles. These plugs are amazing! Easily helped us get 40 MPG on a drive from PA to TX. The engine runs great and they seem to be a great investment.

      Comment on this reviewHelp Icon(earn points)

      (25 of 50 customers found this review helpful)

       
      5.0

      good replacement for original equipment

      By 

      from Pendleton, TX

      About Me Auto Enthusiast, Truck Enthusiast

      Ask me a question

      Level 6

      Pros

      • Easy To Install
      • Improves Engine Efficiency
      • Increases Power

      Cons

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about Denso PK20TT Platinum TT Spark Plug:

        not identical to original equipment, but truck performance improved with these new plugs as part of the tune-up, most notably with faster start-ups.

        Comment on this reviewHelp Icon(earn points)

        (21 of 34 customers found this review helpful)

         
        5.0

        Works good. Fits 2007 Civic LX

        By 

        from MD

        Verified Buyer
        Level 3

        Pros

        • Durable
        • Easy To Install

        Cons

          Best Uses

            Comments about Denso PK20TT Platinum TT Spark Plug:

            Fits 2007 Civic LX. Works good for price. Not expensive to change out at 50K intervals

            Comment on this reviewHelp Icon(earn points)

            (22 of 39 customers found this review helpful)

             
            5.0

            Great Plug

            By 

            from La Grange, KY

            About Me Casual Driver

            Ask me a question

            Verified Buyer
            3 or more reviews submitted

            Pros

            • Easy To Install
            • Improves Engine Efficiency

            Cons

              Best Uses

              • Everyday Driving

              Comments about Denso PK20TT Platinum TT Spark Plug:

              Easy to install in my accord. Great replacement plug. Works great.

              Comment on this reviewHelp Icon(earn points)

              (24 of 41 customers found this review helpful)

               
              4.0

              Noticeable difference.

              By 

              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 reviewHelp Icon(earn points)

                (23 of 46 customers found this review helpful)

                 
                5.0

                Significant performance improvement

                By 

                from Kohler, WI

                About Me Casual Driver

                Ask me a question

                Verified Buyer
                Level 3

                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 reviewHelp Icon(earn points)

                  (22 of 46 customers found this review helpful)

                   
                  4.0

                  not pregapped

                  By 

                  from south bend IN

                  Verified Buyer
                  Helpful Reviewer

                  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 reviewHelp Icon(earn points)

                  (23 of 48 customers found this review helpful)

                   
                  3.0

                  No improvement

                  By 

                  from Syracuse, NY

                  About Me Auto Enthusiast

                  Verified Buyer
                  Level 2

                  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 reviewHelp Icon(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. For further assistance, please review your support options on our Contact Us page.

                  11 Questions | 13 Answers
                  Displaying questions 1-10Previous | Next »
                  • Q:

                    07 bmw 750li
                    do i gap these plugs .40?
                    Asked on 6/5/2016 by Winn

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Hi Winn, glad to assist you! This Denso PK20TT Platinum TT Spark Plug (Part No. 4504) is an exact fit for your 2007 BMW 750li and it is pre-gapped at 0.040 inch.

                      Answered on 6/6/2016 by Steve from AAP
                  • Q:

                    Hi, my car uses a NGK BKR6E Spark Plug, I want to know if i can use a PK20TT DENSO. Thanks
                    Asked on 6/3/2014 by Luis from Venezuela

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Hi Luis, glad to assist you! To check the exact fit application for the Denso PK20TT Platinum TT Spark Plug (Part No. 4504), please provide us the year, make, model and engine size of your vehicle.

                      Answered on 6/3/2014 by Steve from AAP
                  • 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
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