--- product_id: 457717869 title: "NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/-" brand: "ngk" price: "1033 kr" currency: NOK in_stock: true reviews_count: 5 category: "Ngk" url: https://www.desertcart.no/products/457717869-ngk-cr9eix-iridium-ix-spark-plug-4-pack store_origin: NO region: Norway --- # Iridium core for max spark efficiency 4-pack value bundle Direct OEM replacement fit NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/- **Brand:** ngk **Price:** 1033 kr **Availability:** ✅ In Stock ## Summary > ⚡ Ignite your drive with NGK Iridium IX – where precision meets power! ## Quick Answers - **What is this?** NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/- by ngk - **How much does it cost?** 1033 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/457717869-ngk-cr9eix-iridium-ix-spark-plug-4-pack) ## 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 - • **Value-Packed 4-Pack:** Stock up and save with a convenient four-pack, designed for hassle-free maintenance. - • **Top-Rated Spark Plug:** Join thousands of satisfied drivers with a 4.8-star rating and proven performance. - • **OEM-Grade Reliability:** Genuine NGK parts ensure perfect fit and consistent engine starts every time. - • **Precision Iridium Core:** Experience superior ignition with ultra-durable iridium for enhanced performance and fuel efficiency. - • **Vehicle-Specific Compatibility:** Tailored fit for your car model—no guesswork, just seamless installation. ## Overview The NGK CR9EIX Iridium IX Spark Plug 4-Pack delivers OEM-quality ignition performance with a durable iridium core, ensuring reliable starts and improved fuel efficiency. Designed as a direct replacement for vehicle-specific fitment, this top-rated spark plug bundle offers exceptional value and trusted NGK craftsmanship. ## Description NGK OEM part# 3521 Review: Pésimo material - Muy mala calidad del producto original. Review: Great maintenance item. Performs great! - Excellent for my ‘23 HD Road Glide Special. Put a little anti seize and dielectric grease. Easy to install, 25 min job and the bike runs like it should! ## Features - 4 pack NGK Iridium IX 3521 Spark Plug - Genuine NGK Parts - Includes original packaging and hardware - Direct replacement auto parts - Confirm vehicle fitment with desertcart Confirmed Fit ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004SKYAWM | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #9,095 in Automotive ( See Top 100 in Automotive ) #33 in Automotive Performance Spark Plugs | | Brand | NGK | | Brand Name | NGK | | Compatible with Vehicle Type | Car | | Core Material | Iridium | | Core material | Iridium | | Customer Reviews | 4.8 out of 5 stars 590 Reviews | | Included Components | 3521 | | Item Highlight | Replaces RG6HCC 31600012 31600085 90793-20123 90793-20125 90793-20151 90793-2B125 99000-69835-CR9 999-06910-X9-024 4132. | | Item Weight | 0.28 Pounds | | Manufacturer | NGK | | Manufacturer Part Number | CR9EIX | | Model Number | 3521 | | Number of Items | 1 | | OEM Equivalent Part Number | 7085731 | | Thread Size | 10mm | | Thread size | 10mm | | Top Material Type | Iridium | | Top material type | Iridium | | Unit Count | 1.0 Count | | Vehicle service type | Car | ## Product Details - **Brand:** NGK - **Core material:** Iridium - **Thread size:** 10mm - **Top material type:** Iridium - **Vehicle service type:** Car ## Images ![NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/- - Image 1](https://m.media-amazon.com/images/I/61wBxBvQUhL.jpg) ![NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/- - Image 2](https://m.media-amazon.com/images/I/61xGt1UU9GL.jpg) ![NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/- - Image 3](https://m.media-amazon.com/images/I/51OGK696KIL.jpg) ![NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/- - Image 4](https://m.media-amazon.com/images/I/51uBhtXk3NL.jpg) ![NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/- - Image 5](https://m.media-amazon.com/images/I/61CUnIeqKQL.jpg) ## Questions & Answers **Q: Are these ngk 3521 cr9eix iridium ix spark plugs?** A: These are correct and they perform flawlessly! Ron **Q: Will these fit a 2019 polaris rzr turbo s** A: To be safe: check with dealer or a cross reference app to be sure. Ron **Q: Will this work on my Harley Davidson 2018 street glide special?** A: I have a 2017 Road King with the Milwaukee 8 and this is the one it calls for. **Q: Are these the right iridium plugs for an Indian scout 60?** A: NGK has multiple grades of plugs that may fit your engine. It is recommended to go to NGK site at https://ngksparkplugs.com/en/part-finder to verify the applications that will fit your engine. This site will show you all of the available plugs to fit your engine and will also show you which grade plug is recommended for the best performance of your specific engine. ## Customer Reviews ### ⭐ Pésimo material *by O***O on 24 June 2026* Muy mala calidad del producto original. ### ⭐⭐⭐⭐⭐ Great maintenance item. Performs great! *by D***D on 28 July 2026* Excellent for my ‘23 HD Road Glide Special. Put a little anti seize and dielectric grease. Easy to install, 25 min job and the bike runs like it should! ### ⭐⭐⭐⭐⭐ Beau bon et beaucoup moins cher pour le jetski *by M***E on 17 August 2026* Parfaite pour le jetski excellente qualité ## Frequently Bought Together - NGK CR9EIX - Iridium IX Spark Plug - 4-Pack/-- - K&N Motorcycle Oil Filter: High Performance, Premium, Designed to be used with Synthetic or Conventional Oils, Wrench Off Nut: Fits Select Suzuki Motorcycles, KN-138 - K&N Engine Air Filter: High Performance, Premium, Powersport Air Filter: Fits 2006-2010 SUZUKI (GSXR600, GSXR750) SU-7506 --- ## 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.no/products/457717869-ngk-cr9eix-iridium-ix-spark-plug-4-pack](https://www.desertcart.no/products/457717869-ngk-cr9eix-iridium-ix-spark-plug-4-pack) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-09-28*