--- product_id: 5394991 title: "Autolite Iridium XP Automotive Replacement Spark Plug, XP3924 (1 Pack)" brand: "autolite iridium ultra" price: "€ 27.58" currency: EUR in_stock: true reviews_count: 8 category: "Autolite Iridium Ultra" url: https://www.desertcart.be/products/5394991-autolite-iridium-xp-automotive-replacement-spark-plug-xp3924-1-pack store_origin: BE region: Belgium --- # 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 Plug, XP3924 (1 Pack) **Brand:** autolite iridium ultra **Price:** € 27.58 **Availability:** ✅ In Stock ## Summary > ⚡ Ignite Your Drive with Autolite Iridium XP – Where Durability Meets Precision! ## Quick Answers - **What is this?** Autolite Iridium XP Automotive Replacement Spark Plug, XP3924 (1 Pack) by autolite iridium ultra - **How much does it cost?** € 27.58 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/5394991-autolite-iridium-xp-automotive-replacement-spark-plug-xp3924-1-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, 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 centerwire with laser welding ensures sharper, more consistent sparks for peak engine performance. - • **Plug & Play Upgrade:** Pre-gapped and compatible with domestic and foreign cars and trucks, making installation effortless and performance instantly noticeable. - • **Unmatched Longevity:** Engineered to last up to 100,000 miles, reducing maintenance frequency and cost. ## Overview The Autolite Iridium XP XP3924 spark plug is a high-performance automotive replacement designed for up to 100,000 miles of use. Featuring a 0.6mm finewire iridium tip and platinum-protected ground wire, it delivers superior ignitability and fuel efficiency. Trusted since 1936, Autolite offers a lifetime limited warranty on this OE-quality spark plug compatible with a wide range of cars and trucks. ## 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: Great product - Excellent for. Performance of vehicle improved. Gap was preset and installed easily. Review: Great product with better power distribution than regular spark plugs - These are great! Worth the money. After changing them out, it took care of the stalling at Red lights. ## 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 | B000ET3XCY | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #394,060 in Automotive ( See Top 100 in Automotive ) #2,212 in Automotive Replacement Spark Plugs | | Brand | Autolite Iridium Ultra | | Brand Name | Autolite Iridium Ultra | | Compatible with Vehicle Type | Car, Truck | | Core Material | Iridium | | Customer Reviews | 4.5 out of 5 stars 167 Reviews | | Gap Size | 0.6 millimeters | | Global Trade Identification Number | 00009100044365 | | Included Components | Iridium Spark Plug | | Item Highlight | Replaces 613FP 12590701 3303 HR8NPP302 2071 1311. 40k-60k mileage rated. | | Item Type Name | Spark Plug | | Item Weight | 1.76 ounces | | Manufacturer | FRAM | | Manufacturer Part Number | XP3924 | | Manufacturer Warranty Description | Lifetime Limited Warranty | | Model Number | XP3924 | | Number of Items | 1 | | Number of Packs | 1 | | OEM Equivalent Part Number | XP3924 | | Thread Size | 12 mm | | Top Material Type | Nickel | | UPC | 009100044365 | | Unit Count | 1 Count | | Vehicle Service Type | Car, Truck | ## Product Details - **Brand:** Autolite Iridium Ultra - **Core Material:** Iridium - **Thread Size:** 12 mm - **Top Material Type:** Nickel - **Vehicle Service Type:** Car, Truck ## Images ![Autolite Iridium XP Automotive Replacement Spark Plug, XP3924 (1 Pack) - Image 1](https://m.media-amazon.com/images/I/61dYhg-5lEL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product *by K***E on September 25, 2025* Excellent for. Performance of vehicle improved. Gap was preset and installed easily. ### ⭐⭐⭐⭐⭐ Great product with better power distribution than regular spark plugs *by K***R on July 23, 2026* These are great! Worth the money. After changing them out, it took care of the stalling at Red lights. ### ⭐⭐⭐⭐⭐ Autolite Iridium XP in a John Deere LA120 riding lawnmower *by D***N on June 8, 2024* I replaced the 2 champion spark plugs in our John Deere LA120 riding lawnmower with 2 Autolite Iridium XP3924 spark plugs and it has never started quicker. It has over 200 hours on it and even when new it did not start so quickly. I have mowed our lawn twice (over 4.5 acres) since installing these Autolite Iridium spark plugs and I have not had to refill the gas tank. In the past I could get 1 and 3/4 mowings on a full tank of gas. Being Iridium spark plugs, these will not need to be replaced anywhere near as often as copper or platinum spark plugs. These Autolite Iridium spark plugs would be well worth the price just for the longer replacement intervals but factoring the quicker, smoother starts and lowered fuel consumption make these an even greater value! ## Frequently Bought Together - Autolite Iridium XP Automotive Replacement Spark Plug, XP3924 (1 Pack) - HQPASFY Ignition Coil Pack 6pcs Compatible with Audi A4 A5 A6 Q5 Q7 R8 S4 S5 Volkswagen Touareg 3.0L 3.2L 4.2L 5.2L & More Replaces# 06E905115E, UF529, 06E905115F - 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.be/products/5394991-autolite-iridium-xp-automotive-replacement-spark-plug-xp3924-1-pack](https://www.desertcart.be/products/5394991-autolite-iridium-xp-automotive-replacement-spark-plug-xp3924-1-pack) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-09-22*