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

Part No. XP985 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:3/4 in
Resistor:Suppressor
Seat Type:Gasket
Thread Diameter:14 mm
Tip Configuration:Special Power
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
AutoliteIridium XP Spark Plug
 
4.8

(based on 4 reviews)

Ratings Distribution

  • 5 Stars

     

    (3)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

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

Cons

No Cons

Best Uses

  • Everyday driving (4)
  • Performance driving (3)
  • Replacement (3)
    • Reviewer Profile:
    • Auto enthusiast (3)

Reviewed by 4 customers

Displaying reviews 1-4

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(3 of 5 customers found this review helpful)

 
5.0

GREAT UPGRADE TO ANY VEHICLE !!

By 

from BRADFORD OHIO

About Me Auto Enthusiast

Verified Buyer
Helpful Reviewer

Pros

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

Cons

    Best Uses

    • Everyday Driving
    • Performance Driving
    • Replacement

    Comments about Autolite Iridium XP Spark Plug:

    Recently Purchased a 2003 Jeep Wrangler, these woke up the 4.0 Engine quickly !!

    Comment on this reviewHelp Icon

    (4 of 4 customers found this review helpful)

     
    5.0

    These Don't Cost They Pay

    By 

    from Midlothian, VA

    About Me Auto Enthusiast, Mechanic, Truck Enthusiast

    See all my reviews

    Ask me a question

    Helpful Reviewer

    Pros

    • Easy To Install
    • Great Fuel Mileage
    • Improves Engine Efficiency
    • Increases Power

    Cons

      Best Uses

      • Everyday Driving
      • Replacement

      Comments about Autolite Iridium XP Spark Plug:

      I installed these in my 1993, 4.0L 6 cylinder, 183K+ Jeep! Thought I was crazy for paying over $6.00 per plug! But it instantly improved my fuel economy from 14.8 MPG to 17.5 MPG. At first I didn't believe it but have been running them for over 6 months and the mileage hasn't fallen off. With gas at $3.40+ per gallon, like I said these didn't cost they pay! Well worth every penny! And the warranty is for 5 years! Why do they sell anything other than these? Or why would you buy anything other than these?

      Comment on this reviewHelp Icon

      (4 of 6 customers found this review helpful)

       
      5.0

      these plugs are awsome

      By 

      from roanoke va

      About Me Auto Enthusiast

      Verified Buyer
      Helpful Reviewer

      Pros

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

      Cons

        Best Uses

        • Everyday Driving
        • Performance Driving
        • Replacement

        Comments about Autolite Iridium XP Spark Plug:

        mdi wires,fine wire plugs ,accell cap and rotor,instant gain of 3+ mpg,my 200,000 mile jeep runs better than ever

        Comment on this reviewHelp Icon

        (5 of 9 customers found this review helpful)

         
        4.0

        I would buy this product again

        By 

        from Dallas, PA

        Verified Buyer
        Helpful Reviewer

        Pros

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

        Cons

          Best Uses

          • Everyday Driving
          • Performance Driving

          Comments about Autolite Iridium XP Spark Plug:

          This Product preforms above the oem

          • Car & Truck:
          • Auto Enthusiast, Casual Driver, Competitive Driver, Mechanic, Truck Enthusiast

          Comment on this reviewHelp Icon

          Displaying reviews 1-4

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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.

          2 Questions | 2 Answers
          Displaying questions 1-2
          • Q:

            for 1989 wrangler with 4.2l engine..what is spark plug gap setting?
            Asked on 1/28/2016 by joe from ashburn, va

            1 answer

            • CUSTOMER CARE

              A:

              Hi Joe, happy to help you! The spark plug gap for your 1989 Jeep Wrangler 4.2L is 0.035 inches. However, when it comes to repair and maintenance it is always recommended to refer the vehicle owner's manual for the exact specifications to get better results.

              Answered on 1/31/2016 by Steve from AAP
          • Q:

            Do they come pregapped ?
            Asked on 4/6/2014 by Maw from Ky

            1 answer

            • CUSTOMER CARE

              A:

              Hi Maw, I'm glad to assist you! 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.

              Answered on 4/7/2014 by Steve from AAP
          Displaying questions 1-2

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