--- product_id: 278520763 title: "Autolite Spark Plug Autolite Iridium Xp Spark Plug , Neutral , Pack of 4 , XP3923-4PK" brand: "autolite iridium ultra" price: "€ 29.76" currency: EUR in_stock: true reviews_count: 5 category: "Autolite Iridium Ultra" url: https://www.desertcart.pt/products/278520763-autolite-spark-plug-autolite-iridium-xp-spark-plug-neutral-pack store_origin: PT region: Portugal --- # Platinum ground wire & V-trimmed electrode for optimal ignition 0.6mm finewire iridium tip for max fuel efficiency Up to 100,000 miles extended change interval Autolite Spark Plug Autolite Iridium Xp Spark Plug , Neutral , Pack of 4 , XP3923-4PK **Brand:** autolite iridium ultra **Price:** € 29.76 **Availability:** ✅ In Stock ## Summary > ⚡ Ignite Performance, Drive with Confidence! ## Quick Answers - **What is this?** Autolite Spark Plug Autolite Iridium Xp Spark Plug , Neutral , Pack of 4 , XP3923-4PK by autolite iridium ultra - **How much does it cost?** € 29.76 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/278520763-autolite-spark-plug-autolite-iridium-xp-spark-plug-neutral-pack) ## Best For - autolite iridium ultra enthusiasts ## Why This Product - Trusted autolite iridium ultra brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted Heritage:** Backed by Autolite’s legacy since 1936, delivering reliable OE-quality spark plugs for all vehicle types. - • **Fuel-Smart Design:** Advanced electrode technology maximizes fuel efficiency, helping you save at the pump without sacrificing power. - • **Precision Ignition:** 0.6mm finewire iridium center tip with laser welding ensures sharper, more consistent sparks for peak engine performance. - • **Unmatched Longevity:** Engineered to last up to 100,000 miles, reducing maintenance frequency and cost. - • **All-Weather Efficiency:** Platinum-protected ground wire and V-trimmed electrode optimize ignitability across all ignition systems, including DIS. ## Overview The Autolite Iridium XP Spark Plug pack of 4 features a durable 0.6mm iridium finewire tip and platinum-protected ground wire, engineered for up to 100,000 miles of reliable, fuel-efficient ignition. Designed for universal fit across domestic and foreign vehicles, these spark plugs combine advanced laser welding and V-trimmed electrodes to deliver consistent, optimized engine performance backed by a limited lifetime warranty. ## Description Autolite Iridium XP is designed and engineered in the USA, is one of the brand's most technologically advanced spark plugs ever. These spark plugs provide better durability and a more focused ignition for better overall ignitability and optimum performance. Autolite Iridium XP spark plugs function for all makes and models, both foreign and domestic, provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products. Consider upgrading to Autolite iridium XP spark plugs for increased performance. Autolite Iridium XP spark plugs are backed by an unmatched limited lifetime warranty. Review: 使用に支障はないでしょうが、国産品だと先端保護の筒があって安心ですね。 あと、この見た目で判断してください('ω`) Review: Price is perfect Quality is good I used it in my car vw tiguan 2014 and works perfectly All qhat you need for you car ## Features - EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for up to 100,000 miles depending on engine type making it one of the most durable spark plugs on the market today - FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency. Our finewire electrodes produce more focused and consistent ignitability resulting in less fuel consumption - OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and optimal performance - AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plug needs - CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems and a V-trimmed ground electrode for improved ignitability ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B009J58FJA | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | #76,823 in Automotive ( See Top 100 in Automotive ) #409 in Automotive Performance Spark Plugs | | Brand Name | Autolite Iridium Ultra | | Compatible with Vehicle Type | UTV | | Core Material | Iridium | | Country of Publication | Mexico | | Customer Reviews | 4.6 4.6 out of 5 stars (2,515) | | Gap Size | 0.04 Inches | | Global Trade Identification Number | 00009100044334 | | Included Components | 4 Iridium Spark Plugs | | Item Type Name | Spark Plug | | Manufacturer | FRAM | | Manufacturer Part Number | XP3923-4PK | | Manufacturer Warranty Description | Lifetime Limited Warranty | | Model Number | XP3923-4PK | | Thread Size | 14mm | | Top Material Type | Alloy Steel | | UPC | 009100044334 | | Unit Count | 4 Count | ## Product Details - **Brand:** Autolite Iridium Ultra - **Core material:** Iridium - **Thread size:** 14mm - **Top material type:** Alloy Steel - **Vehicle service type:** UTV ## Images ![Autolite Spark Plug Autolite Iridium Xp Spark Plug , Neutral , Pack of 4 , XP3923-4PK - Image 1](https://m.media-amazon.com/images/I/61dYhg-5lEL.jpg) ## Available Options This product comes in different **Number Of Items** options. ## Questions & Answers **Q: where does one find a 3/8 inch spark plug socket socket? I can only find 5/8 inch and larger.** A: Unless these are somehow the tiniest spark plugs in existence, you do not need a 3/8” socket. 5/8” will be the correct socket size and 3/8” will be the size of the ratchet attachment on the other end of the socket. 3/8” is about 10 mm which is smaller than the threads on this plug. **Q: will this fit 2004 dodge ram 1500 4.7 liter 4x4 v8?** A: No, these Autolite XP3923 spark plugs fit 2002-2005 Dodge Ram 1500 (3.7L). Autolite XP5224 will fit 2002-2007 Dodge Ram 1500 (4.7L V8). **Q: Will these spark plugs fit 2003 Altima 2.5** A: Hello, no these will not fit a Altima. Ngk are the original part number 6240. Please let us know if we can be of further assistance. **Q: Where are these made?** A: Autolite Iridium XP spark plugs are designed and engineered in the USA. However, they are manufactured in China - as are all Autolite spark plugs. ## Customer Reviews ### ⭐⭐ Review *by さ***す on 13 March 2022* 使用に支障はないでしょうが、国産品だと先端保護の筒があって安心ですね。 あと、この見た目で判断してください('ω`) ### ⭐⭐⭐⭐⭐ Review *by H***E on 16 November 2024* Price is perfect Quality is good I used it in my car vw tiguan 2014 and works perfectly All qhat you need for you car ### ⭐⭐⭐⭐⭐ Review *by R***T on 26 November 2023* perfect for the car big difference to old ones ## Frequently Bought Together - Autolite Iridium XP Automotive Replacement Spark Plugs, XP3923 (4 Pack) - 4PCS Ignition Coils for 2002 2003 2004 2005 2006 2007 2008 2009 2.4L Toyota Camry Matrix RAV4 Solara Highlander Scion TC xB Lexus HS250h 2.4 Coil Packs OE# UF333 C1330 90919-02244 - FEL-PRO VS 50530 R Engine Valve Cover Gasket Set for Toyota Camry --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/278520763-autolite-spark-plug-autolite-iridium-xp-spark-plug-neutral-pack](https://www.desertcart.pt/products/278520763-autolite-spark-plug-autolite-iridium-xp-spark-plug-neutral-pack) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-11*