--- product_id: 382744229 title: "Autolite Iridium XP Automotive Replacement Spark Plugs, XP3924 (4 Pack)" brand: "autolite iridium ultra" price: "€ 0.08" currency: EUR in_stock: true url: https://www.desertcart.pt/products/382744229-autolite-iridium-xp-automotive-replacement-spark-plugs-xp3924-4-pack store_origin: PT region: Portugal --- # Up to 100,000 miles extended change interval Platinum ground wire & V-trimmed electrode for optimal ignition 0.6mm finewire iridium tip for max fuel efficiency Autolite Iridium XP Automotive Replacement Spark Plugs, XP3924 (4 Pack) **Brand:** autolite iridium ultra **Price:** € 0.08 **Availability:** ✅ In Stock ## Summary > ⚡ Ignite Performance, Slash Fuel Costs, Own the Road! ## Quick Answers - **What is this?** Autolite Iridium XP Automotive Replacement Spark Plugs, XP3924 (4 Pack) by autolite iridium ultra - **How much does it cost?** € 0.08 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/382744229-autolite-iridium-xp-automotive-replacement-spark-plugs-xp3924-4-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 Legacy:** Backed by Autolite’s 80+ years of expertise, ensuring reliability and OE-level quality in every plug. - • **Precision Ignition:** 0.6mm finewire iridium tip laser welded for razor-sharp, consistent sparks that boost fuel economy and performance. - • **Lifetime Confidence:** Limited lifetime warranty means you’re covered for the long haul—upgrade your ride with zero compromise. - • **Unmatched Longevity:** Drive worry-free with spark plugs engineered to last up to 100,000 miles—because your time is valuable. - • **Advanced Construction:** Platinum-protected ground wire and V-trimmed electrode deliver superior ignitability across all ignition systems. ## Overview Autolite Iridium XP spark plugs feature a 0.6mm finewire iridium center electrode with laser welding for enhanced fuel efficiency and ignition precision. Designed to last up to 100,000 miles, they incorporate a platinum-protected ground wire and V-trimmed electrode for superior durability and performance across all ignition systems. Trusted since 1936, these spark plugs come with a limited lifetime warranty, making them a top-tier OE replacement choice for both domestic and foreign vehicles. ## 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. ## 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 | |---------------|-------| | Manufacturer | FRAM | | Brand | Autolite Iridium Ultra | | Model | XP3924-4PK | | Product Dimensions | 8.59 x 10.16 x 2.54 cm; 199.58 g | | Item model number | XP3924-4PK | | Exterior | Chrome | | Manufacturer part number | XP3924-4PK | | Position | Centre | | Special Features | Finewire design, Limited Lifetime Warranty | | Item Weight | 200 g | ## Product Details - **Brand:** Autolite Iridium Ultra - **Core material:** Iridium - **Top material type:** Nickel - **Vehicle service type:** Car - **Global Trade Identification Number:** 00009100044358 ## Images ![Autolite Iridium XP Automotive Replacement Spark Plugs, XP3924 (4 Pack) - Image 1](https://m.media-amazon.com/images/I/61dYhg-5lEL.jpg) ![Autolite Iridium XP Automotive Replacement Spark Plugs, XP3924 (4 Pack) - Image 2](https://m.media-amazon.com/images/I/71Bp1U-IOzL.jpg) ![Autolite Iridium XP Automotive Replacement Spark Plugs, XP3924 (4 Pack) - Image 3](https://m.media-amazon.com/images/I/81a9JQsxxyL.jpg) ![Autolite Iridium XP Automotive Replacement Spark Plugs, XP3924 (4 Pack) - Image 4](https://m.media-amazon.com/images/I/81X6OoVygxL.jpg) ![Autolite Iridium XP Automotive Replacement Spark Plugs, XP3924 (4 Pack) - Image 5](https://m.media-amazon.com/images/I/71OdKPYQstL.jpg) ## Questions & Answers **Q: Will these work on 2016 corolla s** A: No, these spark plugs XP3924 do not fit that model. Autolite XP5683 will fit 2009-2019 Toyota Corolla 1.8L **Q: how many spark plugs invluded** A: My Mercedes has 2 plugs per cylinder so 12. **Q: How do you make warranty claim for lifetime warranty?** A: This is really life time device. **Q: Ya vienen calibradas** A: Si yo se los instale a mi toyota y encendido muy bien ## Frequently Bought Together - Autolite Iridium XP Automotive Replacement Spark Plugs, XP3924 (4 Pack) - Autolite Iridium XP Automotive Replacement Spark Plug, XP3924 (1 Pack) - LEXIVON 5/8" Swivel Magnetic Spark Plug Socket, 3/8" Drive x 10" Total Length | Enhanced Magnetic Design with Thin Wall Socket, Cr-v Steel (LX-122) --- ## 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/382744229-autolite-iridium-xp-automotive-replacement-spark-plugs-xp3924-4-pack](https://www.desertcart.pt/products/382744229-autolite-iridium-xp-automotive-replacement-spark-plugs-xp3924-4-pack) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-22*