--- product_id: 261588335 title: "NGK 6441 ZFR6FIX-11 Iridium IX Spark Plug, Pack of 4" brand: "ngk" price: "€ 71.21" currency: EUR in_stock: true reviews_count: 5 category: "Ngk" url: https://www.desertcart.gr/products/261588335-ngk-6441-zfr6fix-11-iridium-ix-spark-plug-pack-4 store_origin: GR region: Greece --- # 0.6mm laser-welded iridium tip for stable spark High melting point iridium alloy for extreme durability Triple gasket seal to eliminate combustion gas leaks NGK 6441 ZFR6FIX-11 Iridium IX Spark Plug, Pack of 4 **Brand:** ngk **Price:** € 71.21 **Availability:** ✅ In Stock ## Summary > ⚡ Ignite your drive with NGK Iridium IX – where precision meets power! ## Quick Answers - **What is this?** NGK 6441 ZFR6FIX-11 Iridium IX Spark Plug, Pack of 4 by ngk - **How much does it cost?** € 71.21 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/261588335-ngk-6441-zfr6fix-11-iridium-ix-spark-plug-pack-4) ## 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 - • **Fouling Fighter:** Longer insulator nose and corrugated ribs prevent fouling and flashover, keeping your engine running clean and smooth. - • **Endurance Engineered:** Built to withstand intense heat and wear, thanks to the high melting point iridium alloy—your engine’s ultimate ally. - • **Leak-Proof Performance:** Triple gasket seal technology ensures zero combustion gas leakage, maximizing power and efficiency. - • **Precision Ignition Mastery:** Experience lightning-fast starts and razor-sharp throttle response with the ultra-fine 0.6mm iridium tip. - • **Corrosion-Resistant Champion:** Trivalent metal plating guards against corrosion and seizing, extending spark plug life and reliability. ## Overview The NGK 6441 ZFR6FIX-11 Iridium IX Spark Plug pack of 4 is engineered for performance enthusiasts seeking extreme ignitability and durability. Featuring a laser-welded 0.6mm iridium tip, tapered ground electrode, and triple gasket seal, it delivers stable sparks, improved throttle response, and prevents combustion gas leaks. Its high melting point iridium alloy and corrosion-resistant plating ensure long-lasting reliability in high-performance engines. ## Description Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior fouling. The 0.6mm laser welded fine iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect. Longer insulator nose avoids fouling, the corrugated ribs on insulator avoids flashover, and a triple gasket seal eliminates combustion gas leakage. Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high-performance engines. Trivalent metal plating has superior corrosion and seizing properties. Review: Good but all of them needed to be re-gapped. Checked on multiple gauges and calipers. all 4 of them were too closely gapped. Description said it was pre-gapped .044" more like .036" Review: conforme vraies bougies NGK. pour ceux qui se posent la question, il existe des contrefacons NGK; celles ci ne le sont pas, elles sont arrivés rapidement, parfait état. Sur honda accord 2.0i es 147cv année 1999, zfr6fix-11 parfait, meilleur ralenti, plus doux, plus réactive, je sens une petite différence. Le gap est juste en dessous de 1.1mm, ce qui est recommandé pour ce modèle de véhicule et ces bougies: donc pas eu à retoucher quoique ce soit. n'hésitez pas, ce vendeur est sérieux, les bougies sont de qualité. je partage cela pour les prochains qui passent après moi, ca peut aider. cordialement ## Features - Designed specifically for performance enthusiasts, Iridium IX offers extreme ignition, improved throttle response and anti-fouling. - 0.6mm laser welded iridium fine tip ensures high durability and constant spark and tapered ground electrode minimizes the effect of electric quenching - The longer insulating nose prevents clogging, wavy ribs on the insulator prevent flashover, and a triple seal eliminates flue gas leaks. - Iridium alloy has an extremely high melting point, which gives it great durability to heat and electrical wear, perfect for today's high-performance engines. - Trivalent metal plating provides superior anti-corrosion and non-stick properties; Spark plug part number inside the box: ZFR6FIX-11. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00CC0E6GA | | Automotive Fit Type | Universal Fit | | Brand Name | NGK | | Compatible with Vehicle Type | Car, Truck, Motorcycle, etc. | | Core Material | Iridium | | Country of Publication | Japan | | Customer Reviews | 4.8 4.8 out of 5 stars (817) | | Gap Size | 0.6 Millimeters | | Global Trade Identification Number | 00087295064412 | | Included Components | Other Vehicle Parts( AUTO_PART ),Replacement Parts - Underhood, Engine Management, spark-plugs | | Item Type Name | ZFR6FIX11 Iridium Plug | | Item Weight | 0.01 Ounces | | Manufacturer | NGK | | Manufacturer Part Number | 6441-4PK | | Model Number | 6441-4PK | | Thread Size | M10x1.0 or M12x1.25 | | Top Material Type | Metal | | UPC | 087295064412 | | Unit Count | 1 Count | ## Product Details - **Brand:** NGK - **Core material:** Iridium - **Thread size:** M10x1.0 or M12x1.25 - **Top material type:** Metal - **Vehicle service type:** Car, Truck, Motorcycle, etc. ## Images ![NGK 6441 ZFR6FIX-11 Iridium IX Spark Plug, Pack of 4 - Image 1](https://m.media-amazon.com/images/I/81lMBJ-5KgL.jpg) ![NGK 6441 ZFR6FIX-11 Iridium IX Spark Plug, Pack of 4 - Image 2](https://m.media-amazon.com/images/I/81j6VztQB8L.jpg) ![NGK 6441 ZFR6FIX-11 Iridium IX Spark Plug, Pack of 4 - Image 3](https://m.media-amazon.com/images/I/71UT4tYQitL.jpg) ![NGK 6441 ZFR6FIX-11 Iridium IX Spark Plug, Pack of 4 - Image 4](https://m.media-amazon.com/images/I/61pRw94V5LL.jpg) ## Available Options This product comes in different **Number Of Items** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by H***N on 5 January 2024* Good but all of them needed to be re-gapped. Checked on multiple gauges and calipers. all 4 of them were too closely gapped. Description said it was pre-gapped .044" more like .036" ### ⭐⭐⭐⭐⭐ Review *by C***N on 14 April 2019* conforme vraies bougies NGK. pour ceux qui se posent la question, il existe des contrefacons NGK; celles ci ne le sont pas, elles sont arrivés rapidement, parfait état. Sur honda accord 2.0i es 147cv année 1999, zfr6fix-11 parfait, meilleur ralenti, plus doux, plus réactive, je sens une petite différence. Le gap est juste en dessous de 1.1mm, ce qui est recommandé pour ce modèle de véhicule et ces bougies: donc pas eu à retoucher quoique ce soit. n'hésitez pas, ce vendeur est sérieux, les bougies sont de qualité. je partage cela pour les prochains qui passent après moi, ca peut aider. cordialement ### ⭐⭐⭐⭐⭐ Review *by J***A on 5 July 2024* Have not installed yet but should be good. used it previously. ## Frequently Bought Together - NGK 6441 ZFR6FIX-11 Iridium IX Spark Plug, Pack of 4 - ENA Set of 4 Ignition Coil Pack Compatible with Honda Civic 2001 2002 2003 2004 2005 Acura EL 2002 2003 2004 L4 1.7L Coils for UF307 UF400 UF512 5C1451 E1012 UF307 30520P8EA00 C1460 - A-Premium 2-PC Cabin Air Filter w/Activated Carbon Compatible with Honda & Acura Model - Civic (01-05), CR-V (02-06), Element (03-11), CSX (06), EL (97-00 02-05), RSX (02-06) --- ## 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.gr/products/261588335-ngk-6441-zfr6fix-11-iridium-ix-spark-plug-pack-4](https://www.desertcart.gr/products/261588335-ngk-6441-zfr6fix-11-iridium-ix-spark-plug-pack-4) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-04-22*