PTF16TT Platinum TT Spark Plug
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Denso PTF16TT Platinum TT Spark Plug

Part No. 4509 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
Material:1.1mm Platinum
Reach:.460 in
Seat Type:Tapered
Thread Diameter:14 mm
Tip Configuration:1.1mm Platinum
Type:Platinum TT
Wrench Diameter:5/8 in


by PowerReviews
DensoPTF16TT Platinum TT Spark Plug

(based on 1 review)

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Reviewed by 1 customer

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Great Plugs


from Keysville, VA

About Me Auto Enthusiast, Casual Driver

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3 or more reviews submitted


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


    Best Uses

    • Everyday Driving
    • Performance Driving
    • Replacement

    Comments about Denso PTF16TT Platinum TT Spark Plug:

    These spark plugs are great, they improved both gas mileage, and performance for me also.

    Comment on this reviewHelp Icon

    Do you have questions about this product?


    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.

    1 Question | 1 Answer
    Displaying question 1
    • Q:

      I have a 1996 f150 5.0L do I need to gap these spark plugs?
      Asked on 8/28/2014 by Willy the wisle from Hidalgo Tx

      1 answer



        I'd be happy to help you with that! All the plugs come pre-gapped, but you still want to make sure they are at the specifications that your vehicle requires by measuring the gap and adjusting as necessary.

        Answered on 8/29/2014 by K from AAP
    Displaying question 1

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