Autolite XP Iridium Spark Plug

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Part Number: XP104
In Stock
In Stock
Est. Delivery: Sep 01-02
Price: $ 6.99
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Features & Benefits

Our best spark plug! Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6 mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double iridium-enhanced alloy technology center electrode for improved durability and wear resistance. Autolite is an official NASCAR performance partner.

  • 0.6 mm finewire design improves ignitability
  • Patented V-trimmed platinum sidewire technology resists we
  • OE equivalent design is engineered for every engine
  • Designed for better overall durability with virtually no gap erosion
Product Details
Part Number: XP104
Weight: 0.106lbs
Center Electrode Core Material: Iridium
Center Electrode Design: Fine Wire
Center Electrode Tip Material: Iridium
Drive Size: 5/8 in
Ground Electrode Tip Material: Iridium
Insulator Material: Ceramic
Insulator Type: Projected
Package Quantity: 1
Reach (in): 0.7079
Resistor: Yes
Seat Style: Tapered
Thread Size: 14mm X 1.25
Shipping Information: Overnight and Two Day shipping are not available for PO Box, APO/FPO/DPO or US Territory addresses.
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    Autolite XP Iridium/Spark Plug

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    2 reviews


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    5

    This review is hidden because you have chosen to ignore Member 457145694. Show DetailsHide Details

    Good dam plugs!

    4 of 7 people found this helpful

    Good dam plugs! Been putting them in all my customers cars w/ great results and praise!!

    Pros: Good dam plugs!

    Cons: Good dam plugs!

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    3

    This review is hidden because you have chosen to ignore Member 2070306. Show DetailsHide Details

    No Change, but hopeful

    12 of 15 people found this helpful

    I've installed these plugs in my 07 Mercury Mariner Hybrid at 100,000 miles which was 8k miles ago. The factory plugs didn't seem bad when i switched them out. I was worried from previous reviews of this plug stating you'd get worse mileage from these plugs somehow. I was assured by an Autozone employee i'd get much better mileage. Neither one happened. I've noticed no change in mileage or performance which is disappointing. This is also coupled with a new fuel filter, air filter, and oil change. The biggest positive change I've noticed in achieving higher gas mileage and performance is using a higher grade gasoline. So these plugs remain neutral to me, but i'm hopeful they'll keep the Mariner running strong for years to come. I'm just glad I've purchased these during a rebate period for cheap, otherwise my review might be more negative. I'd recommend this product if you're installing them in a sports car (which might yield better results) or if another rebate pops up.

    Pros: No negative effects, plug has potential for performance

    Cons: No positive effects, higher priced for no change

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    Edited on 4/19/2014 by Editor

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