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

Part No. XP104 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
Reach:.708 in
Resistor:Suppressor
Seat Type:Tapered
Thread Diameter:14 mm
Tip Configuration:Power
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
AutoliteIridium XP Spark Plug
 
3.8

(based on 9 reviews)

Ratings Distribution

  • 5 Stars

     

    (5)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (2)

78%

of respondents would recommend this to a friend.

Pros

  • Easy to install (6)
  • Improves engine efficiency (5)
  • Increases power (4)
  • Durable (3)

Cons

No Cons

Best Uses

  • Everyday driving (7)
  • Replacement (4)
    • Car & Truck:
    • Casual driver (3)
    • Reviewer Profile:
    • Auto enthusiast (3)

Reviewed by 9 customers

Displaying reviews 1-9

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5.0

I'm buying this product again and again.

By 

from Houston Texas

Verified Buyer

Pros

  • Great product.

Cons

    Best Uses

      Comments about Autolite Iridium XP Spark Plug:

      Gas saver

      • Was this a gift?:
      • No

      (5 of 5 customers found this review helpful)

       
      5.0

      Good Plug - Great Price

      By 

      from Parker, CO

      About Me Auto Enthusiast

      Verified Buyer
      Helpful Reviewer

      Pros

      • Easy To Install
      • Improves Engine Efficiency

      Cons

        Best Uses

        • Everyday Driving
        • Performance Driving
        • Replacement

        Comments about Autolite Iridium XP Spark Plug:

        I bought this plug mainly becuase I wanted an Iridium plug that would have the durability, and reliability to match that of the OEM plugs. I spent a lot of time researching various plugs, but when it comes down to it; for a daily driver just about any plug will be fine. What I did like was that between the online savings code with Advance Auto and the mail-in rebate from Autolite, I was able to purchase these for less than $3 a plug. I put the plugs into both a 2002 Lincoln Navigator with the 5.4L and a 2002 Ford Mustang GT with the 4.6L. After a month of driving, both run very smoothly and are performing as expected. These are a good plug at a good price.

        (2 of 2 customers found this review helpful)

         
        5.0

        Great Spark Plug

        By 

        from Blacksburg, VA

        About Me Auto Enthusiast, Casual Driver, Mechanic, Truck Enthusiast

        See all my reviews

        Ask me a question

        3 or more reviews submitted

        Pros

        • Easy To Install
        • Improves Engine Efficiency
        • Increases Power

        Cons

          Best Uses

          • Everyday Driving
          • Replacement

          Comments about Autolite Iridium XP Spark Plug:

          The truck had one OEM spark plug which had fouled out and needed replacement. I had a friend recommend these Iridium spark plugs to me after he had put 50k on his vehicle. I found that the spark plugs were easy to install except for the ones in the very back of the 4.6L Triton. It ended up taking me a couple of hours to install because I had to go back out and purchase a socket size that I had lost at some time in the past. I will have to see how these spark plugs hold up to long term usage but my hopes are with a 5yr warranty there shouldn't be any problems.

          (1 of 4 customers found this review helpful)

           
          4.0

          Autolite Xp Iridium Spark Plugs

          By 

          from Schenectady, NY

          About Me Casual Driver

          Verified Buyer

          Pros

          • Durable
          • Improves Engine Efficiency

          Cons

          • Decreases Gas Mileage

          Best Uses

          • Everyday Driving

          Comments about Autolite Iridium XP Spark Plug:

          Bought them because Autolite had a rebate and Advance Auto Parts had 20% off. Do not plan on installed them for several months.

          (1 of 10 customers found this review helpful)

           
          1.0

          Made vehicle run worse than before.

          By 

          from evansville, in

          About Me Truck Enthusiast

          Verified Buyer

          Pros

            Cons

            • Made truck misfire more
            • No Improvement In Performance

            Best Uses

            • None that I knwo of

            Comments about Autolite Iridium XP Spark Plug:

            Just a regular looking plug. Alot of advertising hype about this plug. It may very well work great in other brands of vehicles but autolite is made by fram and fram doesnt really carry a good quality filter, nothing like the purolator 1.

            (1 of 5 customers found this review helpful)

             
            3.0

            they are not so good for a ford freestyl

            By 

            from Camp HIl pa

            About Me Auto Enthusiast

            Pros

            • Easy To Install
            • Increases Power

            Cons

            • Decreases Gas Mileage

            Best Uses

            • Everyday Driving

            Comments about Autolite Iridium XP Spark Plug:

            I only paid like 18 for 6 of them with the rebate, installed them on a 2005 ford freestyle , they don`t work that well , my gas mileage decrease instead of increasing , I m going to try pulstar or denso , they din`t work for me thanks

            (1 of 1 customers found this review helpful)

             
            5.0

            High quality plug for Ford replacement

            By 

            from Acworth, GA

            See all my reviews

            Verified Buyer
            3 or more reviews submitted

            Pros

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

            Cons

            • none

            Best Uses

            • Everyday Driving
            • Replacement

            Comments about Autolite Iridium XP Spark Plug:

            Verify replacement plugs are an exact replacement for OEM plugs.

            Moderate mechanical skill and much patience are necessary for Ford V6 replacements. Research online websites to replace plugs and wires.

            • Car & Truck:
            • Casual Driver

            (5 of 5 customers found this review helpful)

             
            5.0

            Great plug for the extra money spent!

            By 

            from Oakland, ME

            Verified Buyer
            Helpful Reviewer

            Pros

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

            Cons

            • none

            Best Uses

            • Everyday Driving
            • Replacement
            • Upgrade

            Comments about Autolite Iridium XP Spark Plug:

            This spark plug helped my Ford ranger with 156000 miles on it a lot. It provided better acceleration and smoother idle when engine was cold. Start up was also improved for a much faster ignition. You intall them just like any other, very easy.

            • Car & Truck:
            • 1996 Ford Ranger, Casual Driver, Truck Enthusiast

            (3 of 14 customers found this review helpful)

             
            1.0

            problems

            By 

            from wheeling wv

            Pros

            • Easy To Install

            Cons

            • No Improvement In Performance

            Best Uses

            • Everyday Driving

            Comments about Autolite Iridium XP Spark Plug:

            They would not start well when engine was cold at 70 degree.

            • Car & Truck:
            • Casual Driver

            Displaying reviews 1-9

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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.

            1 Question | 1 Answer
            Displaying question 1
            • Q:

              Are these plugs pre-gapped? or do I need to re-gap for a Ford Taurus 05
              Asked on 9/30/2010 by Peter from Gray, TN

              1 answer

              • CUSTOMER CARE

                A:

                No they are not pre-gapped.

                Answered on 9/30/2010 by Kevin from AAP
            Displaying question 1

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