Iridium XP Spark Plug
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Iridium XP Spark Plug
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Autolite Iridium XP Spark Plug

Part No. XP5325 Warranty Details  

See if this part fits a specific vehicle.

Check Vehicle Fit

The Iridium XP is Autolite’s most technologically advanced plug ever. These spark plugs provide better durability* and a more focused ignition for better overall ignitability** and optimum performance.

Product Features:
  • Iridium enhanced 0.6mm finewire design for optimal durability and performance
  • Platinum ground wire for maximum efficiency in all ignition types including DIS systems
  • V-trimmed ground electrode for improved ignitability
  • Heat range precisely set by Ionization Sensing Technology
  • Lifetime Limited Warranty
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Electrode Tip Material:Xtreme Performance
Reach:1 in
Resistor:Suppressor
Seat Type:Gasket
Thread Diameter:14 mm
Tip Configuration:Power
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
AutoliteIridium XP Spark Plug
 
3.7

(based on 6 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

83%

of respondents would recommend this to a friend.

Pros

  • Easy to install (3)

Cons

No Cons

Best Uses

No Best Uses

Reviewed by 6 customers

Displaying reviews 1-6

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5.0

Solid quality plugs

By 

from Mahopac

Verified Buyer

Comments about Autolite Iridium XP Spark Plug:

Great upgrade replacement for stock plugs.

  • Was this a gift?:
  • No

(0 of 1 customers found this review helpful)

 
4.0

As good as a spark plug.

By 

from Inman

Verified Buyer

Comments about Autolite Iridium XP Spark Plug:

If it wasn't for spark plugs, car and truck would not run. As long as they work, it's good to me, I don't drive a race car to notice any differents.

  • Was this a gift?:
  • No

(2 of 11 customers found this review helpful)

 
1.0

Not for 350z

By 

from Austin, TX

About Me Auto Enthusiast

Comments about Autolite Iridium XP Spark Plug:

This is not a match for the 350z. Compare thread size of Autolite (14mm) to thread size of Denzo (12mm). I found out the hard way that the Autolite is too wide to fit into the spark plug hole. The Autolite cannot be used as a replacement for plugs on 350z.

(2 of 3 customers found this review helpful)

 
4.0

Great value for the money

By 

from Cornelius, NC

About Me Casual Driver

Verified Buyer

Pros

  • Easy To Install
  • Lightweight

Cons

    Best Uses

    • Everyday Driving
    • Replacement

    Comments about Autolite Iridium XP Spark Plug:

    Needed to replace spark plugs after 95,000 miles on my car.

    (0 of 3 customers found this review helpful)

     
    4.0

    I would buy this product again

    By 

    from McKinney ,Tx

    About Me Auto Enthusiast, Competitive Driver, Mechanic

    Verified Buyer

    Pros

    • Easy To Install

    Cons

      Best Uses

      • Performance Driving
      • Racing

      Comments about Autolite Iridium XP Spark Plug:

      I personally use the product for racing it creates a great take off for the car

      (0 of 7 customers found this review helpful)

       
      4.0

      I love the sparkplug

      By 

      from leesport pa

      About Me Mechanic

      Pros

      • Easy To Install
      • Increases Power
      • Lightweight

      Cons

      • Decreases Gas Mileage

      Best Uses

      • Everyday Driving
      • Performance Driving
      • Racing

      Comments about Autolite Iridium XP Spark Plug:

      I got real good gas mails with the spark plugs.I wood use again in any one of my cars.

      Displaying reviews 1-6

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      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.

      3 Questions | 4 Answers
      Displaying questions 1-3
      • Q:

        I have a 2014 Chrysler 300C with a 5.7 Hemi. What is the difference in performance between this plug and those costing twice as much? Also, my car takes 16 plugs, two for each cylinder. Your information says I only need eight. Should I stay with the OEM's?
        Asked on 1/20/2015 by Ron from Knoxville TN

        1 answer

        • CUSTOMER CARE

          A:

          I'm happy to help, Ron! On most vehicles, unless you have done some modifications to the engine, "high performance" spark plugs will typically not yield much additional performance than a standard plug. This Autolite XP (Xtreme Performance) Iridium Enhanced Fine Wire Spark Plug (Part No. XP5325) is a great choice for your 2014 Chrysler 300C with the 5.7L 345 CID HEMI V8. The addition of iridium provides a longer lasting spark plug that is also more conductive than platinum.

          Thank you for bringing it to our attention that the number of spark plugs required is listed incorrectly. I will have this updated to reflect the correct number needed for the 5.7L HEMI V8.

          Your OEM spark plugs should have a 100,000 mile service interval. Check your owner's manual to be sure. Your current spark plugs should provide you with reliable service until that time.

          Answered on 1/21/2015 by Heath, ASE Parts Specialist from AAP
      • Q:

        Will these spark plugs harm my 5.7 hemi? The Dodge dealer said not to use anything but oem spark plugs. I do not want to change spark plugs every 30,000 mi. They said I could burn out the coil with these plugs. I just recieved the plugs this week and want to have them installed, but do not want to harm my engine.
        Asked on 9/21/2011 by Bob from Maine

        2 answers

        • CUSTOMER CARE

          A:

          In order to check the exact fit application, please provide the year, make, model and engine size of the vehicle.

          Answered on 9/22/2011 by Vincent from AAP
        • A:

          I would double check the factory specs of the original plugs and compare them to these. Alot of Car Makers will tell you that if you dont use there products something catastrophic will happen just to sell you parts from there warehouse.

          Answered on 12/20/2011 by Tstrick/ average joe from Rossville, GA
      • Q:

        should i gap the spark plug any in my 08 fj cruiser trail teams ed
        Asked on 10/18/2010 by beaver from jacksonville,,nc

        1 answer

        • CUSTOMER CARE

          A:

          Depends on what spark plugs you get. Most spark plugs these days come pre-gapped and should be left alone.

          Answered on 10/18/2010 by Mike the master of auto parts from AAP
      Displaying questions 1-3

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