Iridium XP Spark Plug
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Autolite Iridium XP Spark Plug

Part No. XP5263 Warranty Details  

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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
Manufacturer Heat Range:G16
Resistor:Suppressor
Spark Plug Reach:1 in
Spark Plug Seat Type:Tapered
Spark Plug Thread Size:14 mm
Tip Configuration:Power
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
AutoliteIridium XP Spark Plug
 
4.5

(based on 16 reviews)

Ratings Distribution

  • 5 Stars

     

    (11)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

94%

of respondents would recommend this to a friend.

Pros

  • Improves engine efficiency (11)
  • Easy to install (10)
  • Increases power (10)
  • Durable (8)
  • Lightweight (3)

Cons

No Cons

Best Uses

  • Everyday driving (12)
  • Replacement (10)
  • Performance driving (3)
    • Car & Truck:
    • Casual driver (4)
    • Reviewer Profile:
    • Casual driver (5), Auto enthusiast (3), Mechanic (3)

Most Liked Positive Review

 

Good Plugs

I put these in a 1999 Dodge intrepid. I can feel the increase in engine performance. You dont want to just put 2 dollar plugs in your car. Go with the better or...Read complete review

I put these in a 1999 Dodge intrepid. I can feel the increase in engine performance. You dont want to just put 2 dollar plugs in your car. Go with the better or best plugs.

VS

Most Liked Negative Review

 

danger

This is the worst and most dangerous product I have ever bought I ran them for a month then the car started missing and I pulled out four plugs and they all had the ceramic...Read complete review

This is the worst and most dangerous product I have ever bought I ran them for a month then the car started missing and I pulled out four plugs and they all had the ceramic busted off now my car smokes as well

Reviewed by 16 customers

Displaying reviews 1-10

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4.0

nice plugs, good price

By 

from East Branch, NY

About Me Casual Driver

Verified Buyer

Pros

  • Improves Engine Efficiency

Cons

    Best Uses

    • Everyday Driving
    • Replacement

    Comments about Autolite Iridium XP Spark Plug:

    My Suzuki starts easier and runs great with these plugs.

    Comment on this reviewHelp Icon(earn points)

     
    5.0

    great price for iridium spark plugs

    By 

    from lansing il

    Verified Buyer

    Comments about Autolite Iridium XP Spark Plug:

    I always had bad luck with a utilities do I tend to stay away from them. I needed some iridium spark plugs with that were 1 degree colder than stock. I normally use ngk but they were not in Stock anywhere. So I gave the auto kites a try and they were in sale for half the normal price and worked out greaat.

    Comment on this reviewHelp Icon(earn points)

     
    5.0

    Automate XP spark plugs

    By 

    from Douglasville, Ga. 30134

    About Me Diy

    Ask me a question

    Verified Buyer
    3 or more reviews submitted

    Pros

    • Durable
    • Easy To Install
    • Improves Engine Efficiency

    Cons

    • None

    Best Uses

    • Everyday Driving
    • Performance Driving
    • Replacement

    Comments about Autolite Iridium XP Spark Plug:

    One of the best spark plugs for longevity.

    Comment on this reviewHelp Icon(earn points)

     
    4.0

    Don't assume all inside the individual box are new products

    By 

    from Gulfport Ms.

    About Me Auto Enthusiast, Mechanic

    Verified Buyer

    Pros

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

    Cons

    • One Of The Plugs Was Used

    Best Uses

    • Everyday Driving
    • Replacement

    Comments about Autolite Iridium XP Spark Plug:

    Bought 6 plugs. 4 were in a box and two were individual. 5 of them were new but one in the individual box had been used as there was carbon on the tip and the electrode was bent down touching the center point. Had to wire brush it clean and then regap to .50 as it was touching the point of the electrode. Then it worked as designed

    Comment on this reviewHelp Icon(earn points)

     
    5.0

    Great plugs

    Pros

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

    Cons

      Best Uses

        Comments about Autolite Iridium XP Spark Plug:

        I put these in my 2010 Dodge Challenger SRT8 that has a heavily modified motor. I have been having issues with plugs fowling,I've had these in for now 1 month and theiy still look like new. I also noticed better throttle response.

        Comment on this reviewHelp Icon(earn points)

        (2 of 2 customers found this review helpful)

         
        5.0

        Much better gas milage, fixed misfire

        By 

        from Terre Haute, IN

        About Me Auto Enthusiast, Casual Driver, DIY Mechanic

        Ask me a question

        Level 4

        Pros

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

        Cons

          Best Uses

          • Everyday Driving
          • Replacement

          Comments about Autolite Iridium XP Spark Plug:

          I used these coupled with autolite wires on a 2005 pt cruiser and they work GREAT. Fixed a misfire in the motor and improve MPG @ 5 MPG!!:) Installation was a little tricky but is working great several weeks later. Pricing was AWESOME. Absolutely get the better plugs my car will die or be sold before i have to replace these again!!:)

          Comment on this reviewHelp Icon(earn points)

          (0 of 2 customers found this review helpful)

           
          5.0

          great spark plug

          By 

          from Woodbridge, Va

          About Me Mechanic

          Verified Buyer
          Level 1

          Pros

          • Improves Engine Efficiency
          • Increases Power

          Cons

            Best Uses

              Comments about Autolite Iridium XP Spark Plug:

              Fixed the misfire

              Comment on this reviewHelp Icon(earn points)

              (0 of 2 customers found this review helpful)

               
              4.0

              Good replacement plug.

              By 

              from Georgetown Ontario Canada.

              About Me Casual Driver

              Ask me a question

              Verified Buyer
              Level 3

              Pros

              • Easy To Install

              Cons

                Best Uses

                • Replacement

                Comments about Autolite Iridium XP Spark Plug:

                Ready to use. Preset gap.

                Comment on this reviewHelp Icon(earn points)

                (5 of 8 customers found this review helpful)

                 
                5.0

                Iridium and forget doing it again

                By 

                from Naperville, IL.

                About Me Mechanic

                Verified Buyer
                Level 3

                Pros

                • Bad To The Bone
                • Durable
                • Easy To Install
                • Improves Engine Efficiency
                • Increases Power

                Cons

                  Best Uses

                  • Everyday Driving
                  • Performance Driving
                  • Replacement

                  Comments about Autolite Iridium XP Spark Plug:

                  I have a 2005 Dodge Magnum R/T 5.7L HEMI. OEM plugs are Champion standard electrode..."change every 30,000 miles". Sorry, but I don't have time for that. I put 25,000+ miles or 2.5 hours/6 days a week. So, my point is I need something that will go more than 2 years on my car before I have to change it. Why? Because the awesome HEMI production team wanted 2 spark plugs per cylinder...so NOT 8 plugs but 16. I don't want to change spark plugs every year, bottom line. So I go with a minimum double platinum, or like this plug, iridium. Iridium is the second-densest element (after osmium) and is the most corrosion-resistant metal...on the planet! So I like it HARD, and NON-corrosive. And you should too ;) At least I think so!

                  Comment on this reviewHelp Icon(earn points)

                  (0 of 1 customers found this review helpful)

                   
                  5.0

                  best plug i have ever used

                  By 

                  from manning south carolina

                  About Me Casual Driver

                  Pros

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

                  Cons

                    Best Uses

                    • Everyday Driving

                    Comments about Autolite Iridium XP Spark Plug:

                    i have instaled these plugs in my 2003 carvan with a 2.4 4 cylender engine and the performance has inproved 100% it is nice to step on the gas petal and have the engine respond imedeleaty. the van shifts much better and the miles per gallon of gas has incresed by 15%. the van has 236000 thousand miles on it. i replaced bosh platium plugs with 35000 miles on them with the autolite iridium plugs.

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

                      This website says that this product is compatible with my 2004 Chrysler P.T. Cruiser. However, I would like to know if there is any danger or even a chance of it if installed in my engine. The engine is a 2004 2.4 Liter Automatic 4-Cylinder. It leaks a few drops of oil in the top of the spark plug, where wire connects. I just needed to know if there is any risk whatsoever to the engine itself. Eg. Damage to pistons, heads, etc. I plan on buying the set with matching, compatible wires and waiting until I know for sure what the effects are of installing this product. Please respond to me A.S.A.P. so I can either install them with no worry or return them. Thank you for your response.
                      Asked on 3/1/2016 by Larry the wannabe car mechanic from Jackson, KY

                      1 answer

                      • CUSTOMER CARE

                        A:

                        Hi Larry, glad to help you! This Autolite Xp (Xtreme Performance) Iridium Enhanced Fine Wire, Spark Plug (Part No. XP5263) is an exact fit for your 2004 Chrysler PT Cruiser 2.4L. But, I would suggest that you take your vehicle and get it thoroughly checked by a certified mechanic to properly diagnose it for the oil leak before buying any parts that may/may not solve the problem and also to avoid any risks.

                        Answered on 3/2/2016 by Steve from AAP
                    • Q:

                      Do these need to be gapped on my 2008 cadillac cts?
                      Asked on 2/10/2014 by Joe S from NJ

                      1 answer

                      • CUSTOMER CARE

                        A:

                        Hi Joe, great question! This spark plug is pre-gapped at 0.050" and is an exact fit for your 2008 Cadillac CTS.

                        Answered on 2/11/2014 by Vincent from AAP
                    • Q:

                      do i need to gap my plugs on a 2004 chevy cavalier 2.2l ? or are they pre-gapped ?
                      Asked on 12/29/2013 by joealphin from Pink Hill . N.C.

                      1 answer

                      • CUSTOMER CARE

                        A:

                        Hi Joealphin, glad to assist you! This spark plug is pre-gapped at 0.043 - inch.

                        Answered on 12/30/2013 by Steve from AAP
                    • Q:

                      Hi, I am thinking of replacing the spark plugs in my 2004 Dodge Ram 1500 5.7 Hemi. Is the gap correct for my engine? How long do you think they will last? Are they OEM approved equipment for my truck?
                      Asked on 11/14/2013 by Laugy from appleton Wi

                      1 answer

                      • CUSTOMER CARE

                        A:

                        Great question Laugy. The 2004 Dodge Ram 1500 with the 5.7L Hemi most likely came originally with Champion or NGK Copper Core spark plugs. These iridium plugs meet OE specifications to run in your vehicle. The iridium material should allow the plugs to last around twice as long as the original plugs if not more. The gap on these plugs is .045 and they are pre-gapped.

                        Answered on 11/14/2013 by Heath from AAP
                    • Q:

                      Does the plug need to be re-gapped? I have a 2007 Cadillac CTS 3.6L. What is the gap for that car?
                      Asked on 11/6/2013 by Kevin from Churchville, PA

                      1 answer

                      • CUSTOMER CARE

                        A:

                        Hi Kevin, this Autolite Xp (Xtreme Performance) Iridium Enhanced Fine Wire Spark Plug - Part No. XP5263 was pre-gapped at 0.050 inch. All the spark plugs are pre-gapped from the factory, the fact remains that the gap must be adjusted for the vehicle that the spark plug is intended for. Those with modified engines must remember that a modified engine with higher compression or forced induction will typically require a smaller gap settings (to ensure ignitability in these denser air/fuel mixtures). As a rule, the more power you are making, the smaller the gap you will need.

                        Answered on 11/6/2013 by Morgan from AAP
                    • Q:

                      l have heard some spark plugs are not recommended with an old school small block like 289 and a High Performance ignition system,because of high resistance, so what is my best option in this case for autolite spark plugs??? thanks
                      Asked on 7/20/2013 by jogito 57

                      1 answer

                      • CUSTOMER CARE

                        A:

                        Yes, there are a few high resistance spark plugs which are not recommended for a vintage Ford 289 small block engine. The Autolite Xp (Xtreme Performance) Iridium Enhanced Fine Wire Spark Plug - Part No. XP5263 is not compatible with this engine. Instead I would recommend the Autolite Professional Series Ignition Wireset - Part No. 96205 which is compatible with a Ford 289 small block. 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 7/23/2013 by John the Car-Doc from AAP
                    • Q:

                      Are these sold in sets or only in single quantity?
                      Asked on 9/24/2012 by newyorknowreadingpa

                      1 answer

                      • CUSTOMER CARE

                        A:

                        This Autolite Xp (Xtreme Performance) Iridium Enhanced Fine Wire Spark Plug (Part# XP5263) is sold individually. For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto store and one of our representatives will gladly assist you with any questions or concerns you may have.

                        Answered on 9/24/2012 by Rick from AAP
                    • Q:

                      Everything I've read about these plugs so far mention that they do not need to be gapped because you may damage the tip. My 2006 Pontiac G6 2.4L ecotech states the gap should be 0.040. Is this correct?
                      Asked on 9/5/2012 by Ron

                      1 answer

                      • CUSTOMER CARE

                        A:

                        This Autolite Xp (Xtreme Performance) Iridium Enhanced Fine Wire Spark Plug (Part No. XP5263) is an exact fit for your 2006 Pontiac G6 at 0.040 gap. 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 9/6/2012 by Steve from AAP
                    • Q:

                      do these spark plugs come pregapped or do they need to be gapped
                      Asked on 2/21/2012 by Anonymous

                      1 answer

                      • CUSTOMER CARE

                        A:

                        This Autolite Xp Iridium Enhanced Fine Wire Spark Plug (Part No. XP5263) already comes pregapped with 1.3 mm gap.

                        Answered on 2/22/2012 by Dennis from AAP
                    • Q:

                      when i went to pick these up at my local store, i noticed that the proper gap for my car is .043, i drive a 2002 saturn L200...is this the proper gap?
                      Asked on 2/17/2012 by Anonymous

                      1 answer

                      • CUSTOMER CARE

                        A:

                        Yes, this part Autolite Xp (Xtreme Performance) Iridium Enhanced Fine Wire Spark Plug, Part No. XP5263 manufactured by Autolite fits your vehicle 2002 Saturn L200. Yes 0.043 is the proper gap for your car 2002 Saturn L200.

                        Answered on 2/18/2012 by Aaron from AAP
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