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Autolite Iridium XP Automotive Replacement Spark Plugs, XP3923 (4 Pack)

4.6 4.6 out of 5 stars 2,001 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Automotive Replacement Spark Plugs by Autolite

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Purchase options and add-ons

Brand Autolite
Core Material Iridium
Top Material Type Alloy Steel

About this item

  • EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for up to 100,000 miles depending on engine type making it one of the most durable spark plugs on the market today
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency. Our finewire electrodes produce more focused and consistent ignitability resulting in less fuel consumption
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and optimal performance
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plug needs
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems and a V-trimmed ground electrode for improved ignitability
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Autolite Iridium XP Automotive Replacement Spark Plugs, XP3923 (4 Pack)
Autolite Iridium XP Automotive Replacement Spark Plugs, XP3923 (4 Pack)
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Price-29% $24.96
List:$35.16
-19% $20.18
Typical:$25.06
$28.51$17.99$19.99$18.99
Delivery
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Tuesday, Apr 2
Get it as soon as Monday, Apr 1
Customer Ratings
Value for money
4.3
4.8
4.7
Mileage
4.0
4.8
4.2
Sold By
Amazon.com
Amazon.com
Amazon.com
OYEAUTO
BS-AUTO
PremiumpartsWhosale
number of items
4
4
4
4
core material
Iridium
Iridium
Iridium
Iridium
Iridium
Iridium
top material
Alloy Steel
Nickel
Nickel
Nickel
iridium

From the manufacturer

The Autolite story began in 1911 when two small companies started producing buggy lamps, becoming a thriving automotive parts manufacturer by the 1930s. But its history as a spark plug manufacturer began in 1935 . With a handful of new draftsman and staff members, it only took a few months before the Electric Autolite Company had a spark plug available for distribution. Autolite had instant success, as the brand supplied spark plugs and other ignition parts to well-known automotive .

Product Description

Autolite Iridium XP is designed and engineered in the USA, is one of the brand's most technologically advanced spark plugs ever. These spark plugs provide better durability and a more focused ignition for better overall ignitability and optimum performance. Autolite Iridium XP spark plugs function for all makes and models, both foreign and domestic, provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products. Consider upgrading to Autolite iridium XP spark plugs for increased performance. Autolite Iridium XP spark plugs are backed by an unmatched limited lifetime warranty.

Product information

Technical Details

Additional Information

Warranty & Support

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Autolite Iridium XP Automotive Replacement Spark Plugs, XP3923 (4 Pack)


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What's in the box

  • 4 Iridium Spark Plugs
  • Looking for specific info?

    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    2,001 global ratings

    Customers say

    Customers like the performance, value, and ease of installation of the spark plug. For example, they mention that it works like it should, it makes their car run a lot better, and that it's easy to install. That said, opinions are mixed on the quality and fit.

    AI-generated from the text of customer reviews

    28 customers mention22 positive6 negative

    Customers like the performance of the spark plug. They say it works as expected, makes their car run better, and improves mileage. Some mention that the plugs are a direct replacement and have no issues with performance. Overall, most are happy with their purchase and recommend them to others.

    "These work wonderful my husband put them in without any problem an made my car run so much better. Their great will buy again if the time comes." Read more

    "...felt an immediate difference in the smoothness of idle and a slight increase to throttle response after installation...." Read more

    "Works great on my Rav 4. I have no issues with the performance." Read more

    "They were good, made my car run a lot better. Just as good or better as Denso. Had them on my car for about six weeks." Read more

    13 customers mention13 positive0 negative

    Customers appreciate the value of the spark plugs. They say it is a decent price for iridium plugs and a great price for 4 spark plug.

    "Great price but they do not work for Chevy Cruze's. My 2014 rejected 2 sets of these...." Read more

    "...don't know if will last like OEM.Good Price alternative with the same performance so far." Read more

    "This is an awesome product which is a great price for 4 spark plugs. These iridium spark plugs is usually 15 or 16 dollars for each in auto stores...." Read more

    "...No issues and the engine runs smoothly. Recommend for the cost value. I also changed the coils since it was part of the process." Read more

    6 customers mention6 positive0 negative

    Customers find the installation of the spark plug to be easy. They mention that the car starts right up and runs right after installation.

    "Easy to install on our 2007 Toyota Rav4. Car runs like a dream. Yes car is still going." Read more

    "Perfect fit and easy to install." Read more

    "Had them in for a few thousand miles and so far so good. Car starts right up and runs right, cant ask for more than that from a spark plug...." Read more

    "...I put them in a 351w and it fired right up! No more hard starting, surging, or hesitation! Worth the money!" Read more

    4 customers mention4 positive0 negative

    Customers like that the spark plugs are pre-gapped at 44 thousandths. They also say that there's no need to set a gap on these plugs as they're 100% iridium.

    "no need to set a gap on these plugs as they're 100% iridium...." Read more

    "These seem like quality plugs. They were all properly gapped at 44 thousandths. I put them in a 351w and it fired right up!..." Read more

    "...A good start every time, no miss-fires, it's been over a month now. Pre-gapped, easy to install." Read more

    "Pre-gapped and easy to replace on 2008 RAV4...." Read more

    41 customers mention24 positive17 negative

    Customers are mixed about the quality of the spark plug. Some mention it's a pretty good and satisfied spark plug, while others say that they were improperly gapped and varied with each plug. They also say that the plugs are of low quality and do not last very long.

    "I priced these before purchasing and got a great deal on these quality plugs." Read more

    "The plugs are not gapped for a Chevy Cruze, so check the gap. All 4 plugs were around 35 thousands." Read more

    "...difference in the smoothness of idle and a slight increase to throttle response after installation...." Read more

    "...Now I can relax and focus on something else. So yes, these spark plugs are perfect if you are looking for the same and have any rough idle issue..." Read more

    15 customers mention10 positive5 negative

    Customers are mixed about the fit of the spark plug. Some mention that they fit well and seem to be working great, while others say that they don't fit and are not the same size.

    "Perfect fit and easy to install." Read more

    "...them side by side to my old plugs and they definitely were not the same size. Disappointed." Read more

    "They fit well, and seem to be working great" Read more

    "Fit well That shirt in the line Jevity but it fits well" Read more

    Chevrolet Cruze 2012 Manual
    5 Stars
    Chevrolet Cruze 2012 Manual
    Excelentes bujías para mi carro, mucho mejor que otras marcas.Motor estáble, mejor desempeño del carro.Sería deseable que las bujías vengan con un proyector para la parte del electrodo
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    Top reviews from the United States

    Reviewed in the United States on March 21, 2024
    Reviewed in the United States on March 21, 2024
    Reviewed in the United States on December 10, 2023
    Reviewed in the United States on December 28, 2023
    Reviewed in the United States on February 1, 2024
    Reviewed in the United States on December 27, 2023

    Top reviews from other countries

    Translate all reviews to English
    christian
    5.0 out of 5 stars Ta bien
    Reviewed in Mexico on September 6, 2023
    Khaos_323
    5.0 out of 5 stars Oem fit
    Reviewed in Canada on October 25, 2020
    One person found this helpful
    Report
    Ross LIGHT
    5.0 out of 5 stars the right plug
    Reviewed in Australia on November 26, 2023
    Ricardo
    5.0 out of 5 stars Buen proveedor.
    Reviewed in Mexico on May 21, 2021
    Mike Bujtas
    5.0 out of 5 stars Great Value !
    Reviewed in Canada on December 4, 2020
    3 people found this helpful
    Report