--- product_id: 54303635 title: "(8-Pack) NGK Spark Plugs LTR7IX-11 (Stock # 6510) | Replaces 5340 ITV22. 40k-60k mileage rated." brand: "ngk" price: "€ 125.94" currency: EUR in_stock: true reviews_count: 13 category: "Ngk" url: https://www.desertcart.hr/products/54303635-8-pack-ngk-spark-plugs-ltr7ix-11-stock-6510-replaces store_origin: HR region: Croatia --- # Iridium IX for superior ignition Colder running for enhanced performance OEM-grade fit & durability (8-Pack) NGK Spark Plugs LTR7IX-11 (Stock # 6510) | Replaces 5340 ITV22. 40k-60k mileage rated. **Brand:** ngk **Price:** € 125.94 **Availability:** ✅ In Stock ## Summary > ⚡ Ignite your drive with NGK’s precision spark—because every millisecond counts! ## Quick Answers - **What is this?** (8-Pack) NGK Spark Plugs LTR7IX-11 (Stock # 6510) | Replaces 5340 ITV22. 40k-60k mileage rated. by ngk - **How much does it cost?** € 125.94 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/54303635-8-pack-ngk-spark-plugs-ltr7ix-11-stock-6510-replaces) ## Best For - ngk enthusiasts ## Why This Product - Trusted ngk brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **8-Pack Convenience:** Complete set for a full engine refresh—no mid-project runs to the store. - • **OEM-Grade Reliability:** Trusted by manufacturers worldwide for consistent fit and long-lasting durability. - • **Universal Compatibility:** Vehicle-specific fit for cars and trucks, ensuring seamless installation and peak performance. - • **Precision Iridium IX Tech:** Experience sharper, more reliable ignition with NGK’s premium iridium tips. - • **Optimized Cold-Running Design:** Keeps your engine cooler under high-performance conditions, reducing knock and wear. ## Overview The NGK LTR7IX-11 Iridium IX spark plugs deliver OEM-level quality and durability with advanced iridium technology for superior ignition performance. Designed to run cooler and reduce engine knock, this 8-pack fits a wide range of cars and trucks, making it the go-to choice for professionals seeking reliable, high-performance engine parts. ## Description Genuine 8 pack NGK Iridium IX 6510 Spark Plug Review: Great plugs when needing a colder option - Engine in my 2015 Mustang GT feels a little snappier, less knock under acceleration after installing the GT350 throttle body and cold air intake. Review: Perfect for 2018 suburban - Works perfectly for my 2018 suburban. It was recommended I use these since they run a bit cooler...I have performance headers, a tune, and a cat back installed. So far so good! ## Features - Often specified as original equipment, NGK spark plugs are the best combination of performance and longevity. - Offering the Quality, Reliability and Durability You'd Expect from an OEM Manufacturer - NGK is the world's largest supplier of OEM spark plugs - Research Applications Prior to Purchase To Make Sure This OEM Part Fits Your Vehicle, Including Engine, Drivetrain and Quantity Needed. - This Listing is for 8 Spark Plugs ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0716788M2 | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #19,814 in Automotive ( See Top 100 in Automotive ) #107 in Automotive Replacement Spark Plugs | | Brand | NGK | | Brand Name | NGK | | Compatible with Vehicle Type | Car, Truck | | Core Material | Copper | | Customer Reviews | 4.8 out of 5 stars 313 Reviews | | Included Components | 6510 | | Item Weight | 0.27 g | | Manufacturer | NGK | | Manufacturer Part Number | 6510 | | Manufacturer Warranty Description | Includes manufacturer provided warranty | | Model Number | 6510 | | Number of Items | 8 | | Number of Packs | 8 | | OEM Equivalent Part Number | 6510 | | Thread Size | 14mm | | Top Material Type | Nickel | | UPC | 087295065105 | | Unit Count | 1 Count | | Vehicle Service Type | Car, Truck | ## Product Details - **Brand:** NGK - **Core Material:** Copper - **Thread Size:** 14mm - **Top Material Type:** Nickel - **Vehicle Service Type:** Car, Truck ## Images ![(8-Pack) NGK Spark Plugs LTR7IX-11 (Stock # 6510) | Replaces 5340 ITV22. 40k-60k mileage rated. - Image 1](https://m.media-amazon.com/images/I/71W3hTNBWkL.jpg) ## Questions & Answers **Q: Would these fit a 2017 ford mustang gt 5.0?** A: These plugs should fit your 5.0 because they fit my F150 2018, 5.0. Great plug. Smoother running and faster engine performance. **Q: are these actual NGK or knock offs?** A: If you purchase from OverstockDirect, you will receive genuine NGK spark plugs in NGK packaging. You can always authenticate NGK products you receive from us by calling their number (248) 926-6900. **Q: What socket size do I use to install these plugs?** A: 5/8" (16mm) **Q: Will this fit a 2014 Shelby GT500?** A: I installed them in a 2019 GT. I don’t think they would fit both but can’t be 100 percent ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great plugs when needing a colder option *by W***S on January 27, 2026* Engine in my 2015 Mustang GT feels a little snappier, less knock under acceleration after installing the GT350 throttle body and cold air intake. ### ⭐⭐⭐⭐⭐ Perfect for 2018 suburban *by R***L on October 2, 2025* Works perfectly for my 2018 suburban. It was recommended I use these since they run a bit cooler...I have performance headers, a tune, and a cat back installed. So far so good! ### ⭐⭐⭐⭐⭐ C7 z06 one step colder plugs *by P***S on July 19, 2026* This is for C7 Z06 - one step colder. Need to gap it. Good for bolt on mods or pulley change on Lt4 engine. I know Amazon says this doesn't fit but they're wrong. Also, they wanted me to use ltr5ix plugs which is 2 steps warmer and wrong. ## Frequently Bought Together - (8-Pack) NGK Spark Plugs LTR7IX-11 (Stock # 6510) - Motorcraft FL-500S Oil Filter - 5w50 Ford Motorcraft XO-5w50-QGT Full Synthetic Motor Oil 12 qt case --- ## 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.hr/products/54303635-8-pack-ngk-spark-plugs-ltr7ix-11-stock-6510-replaces](https://www.desertcart.hr/products/54303635-8-pack-ngk-spark-plugs-ltr7ix-11-stock-6510-replaces) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-09-08*