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Denso 4503 Spark Plug

4.6 4.6 out of 5 stars 1,256 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Automotive Replacement Spark Plugs by Denso

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1 Count (Pack of 1)

Purchase options and add-ons

Brand Denso
Core Material Platinum
Gap Size 1 Millimeters
Thread Size 1.25mm
Top Material Type Titanium

About this item

  • Twin-tip technology with 11 mm platinum center electrode and 11 mm titanium enhanced ground electrode
  • Improve fuel economy, better acceleration and faster starts than all other single platinum plugs
  • Purified alumina powder insulator provides exceptional dielectric strength and thermal conductivity, allowing the material to stand up to extreme stress
  • Purified alumina powder insulator provides exceptional dielectric strength and thermal conductivity, allowing the material to stand up to extreme stress
See more product details

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From the manufacturer

-

Denso (4503) PK16TT Platinum TT Spark Plug

Description:

Denso’s Twin-Tip design allows for a more efficient combustion, which yields better engine performance in terms of power and fuel economy.

  • 1.1mm platinum tipped center electrode and titanium-enhanced 1.1mm ground electrode
  • Machine rolled threads prevent seizing or cross threading during installation and removal
  • 100% pre-fired to assure the highest quality possible
  • Purified alumina powder insulator provides exceptional strength and thermal conductivity
  • Five rib insulator prevents flashover
  • Copper-glass seal bonds center electrode and insulator for a gas-tight seal

Product Description

Denso 4503 Spark Plug

Product information

Technical Details

Additional Information

Warranty & Support

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Denso 4503 Spark Plug


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What's in the box

  • Spark Plug
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    Price$3.29$14.99$17.99-21% $35.82
    Typical:$45.62
    $44.56$27.99
    Delivery
    Get it as soon as Tuesday, Apr 2
    Get it Apr 2 - 4
    Get it as soon as Tuesday, Apr 2
    Get it Apr 2 - 3
    Get it Apr 4 - 5
    Get it as soon as Tuesday, Apr 2
    Customer Ratings
    Value for money
    4.5
    5.0
    4.8
    4.5
    Mileage
    4.3
    4.4
    4.8
    4.4
    Longevity
    4.4
    4.6
    4.8
    Sold By
    Amazon.com
    Sixity Auto
    OYEAUTO
    SUPER SHOPS
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    number of items
    1
    1
    1
    core material
    Platinum
    Copper
    Iridium
    Iridium
    Iridium
    Platinum
    top material
    Titanium
    Nickel
    Ceramic
    Ceramic

    Looking for specific info?

    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    1,256 global ratings

    Customers say

    Customers like the performance, quality and value of the spark plug. For example, they mention that it's delivering great performance, works effectively and is good value for money. Opinions are mixed on the fit.

    AI-generated from the text of customer reviews

    56 customers mention50 positive6 negative

    Customers like the performance of the spark plug. For example, they say it delivers great performance, makes their truck run better, and accelerates smoother. Some mention it's easy to install and provides great mileage improvement. That said, some say they've noticed an increase in response and gears seem to be engaging quicker than before.

    "No issue with these plugs, easy to install and great mileage improvement" Read more

    "I got this spark plugs for the second time and they work effectively, very good product, highly recommend it!" Read more

    "Worked great in my 98 tacoma 2.7 liter" Read more

    "...The Caliber is now driving much better, absolutely no stuttering. Will update review if product fails abnormally quickly." Read more

    53 customers mention45 positive8 negative

    Customers like the quality of the spark plugs. They mention that they work effectively, are a great buy, and are reliable. Some say that the plugs are in good working condition and have no issues.

    "No issue with these plugs, easy to install and great mileage improvement" Read more

    "...this spark plugs for the second time and they work effectively, very good product, highly recommend it!" Read more

    "...Very simple repair, the plugs are easily accessible and the spark plug socket with the magnet meant I didn't have to fish around for the old..." Read more

    "Quality and clean" Read more

    32 customers mention32 positive0 negative

    Customers are satisfied with the value of the spark plug. They mention that it is an excellent OEM plug, cheap, and a great buy.

    "Great spark for this price" Read more

    "...These plugs were a great price and you can't go wrong with Denso parts on a Toyota. Car Purrs like a kitten now so I have no complaints." Read more

    "Great price, and Denso is a great brand no doubt." Read more

    "Worked great should get plenty of mileage out of these and are priced great." Read more

    8 customers mention8 positive0 negative

    Customers find the installation of the spark plug to be easy. They mention that the plugs are easy to install, and the car now runs smooth and has easy starting.

    "No issue with these plugs, easy to install and great mileage improvement" Read more

    "...Car now runs smooth and easy starting!" Read more

    "Easy install truck runs better" Read more

    "...have gotten away with leaving them in, but it's a cheap part and an easy job." Read more

    14 customers mention9 positive5 negative

    Customers are mixed about the fit of the spark plug. Some mention that it fits perfectly, while others say that it does not fit their car and causes damage.

    "Just right." Read more

    "These do not fit a 2007 dodge magnum sxt. They are for the V8s only." Read more

    "This Worked on a 2002 Toyota Tacoma Xtracab Prerunner 2.7L. They fit right in and had no problems after installing them." Read more

    "Fits perfect and very good quality" Read more

    cracked after a year
    2 Stars
    cracked after a year
    what else to say, it ran fine for a year or so, then cold start misfires out of nowhere, spark plugs were the last thing I thought of, hopefully that ceramic looking piece just got pulverized and expelled from the engine
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    Top reviews from the United States

    Reviewed in the United States on February 21, 2024
    Size: 1 Count (Pack of 1)Verified Purchase
    Reviewed in the United States on January 31, 2024
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    Reviewed in the United States on March 11, 2024
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    Reviewed in the United States on November 7, 2017
    Size: 1 Count (Pack of 1)Verified Purchase
    One person found this helpful
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    Reviewed in the United States on January 30, 2024
    Size: 1 Count (Pack of 1)Verified Purchase
    Reviewed in the United States on May 22, 2023
    Size: 1 Count (Pack of 1)Verified Purchase
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    Reviewed in the United States on June 18, 2023
    Size: 1 Count (Pack of 1)Verified Purchase
    One person found this helpful
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    Top reviews from other countries

    Translate all reviews to English
    Roger L.
    5.0 out of 5 stars Fits 2002 Toyota Corolla
    Reviewed in Canada on October 14, 2023
    Size: 1 Count (Pack of 1)Verified Purchase
    BRAD FARMER
    5.0 out of 5 stars Don;t cheap out on Spark Plugs
    Reviewed in Canada on May 31, 2021
    Size: 1 Count (Pack of 1)Verified Purchase
    Matt
    5.0 out of 5 stars Work great
    Reviewed in Canada on March 4, 2020
    Size: 1 Count (Pack of 1)Verified Purchase
    Sinan T.
    5.0 out of 5 stars Good product
    Reviewed in Canada on November 4, 2019
    Size: 1 Count (Pack of 1)Verified Purchase
    bruno tremblay
    5.0 out of 5 stars bon
    Reviewed in Canada on December 5, 2019
    Size: 1 Count (Pack of 1)Verified Purchase