--- product_id: 86992814 title: "BOSCH 9621 OE Fine Wire Double Iridium Spark Plug - Advanced Original Equipment Technology with 4X Life - Pack of 4" brand: "bosch" price: "E£ 6010" currency: EGP in_stock: true reviews_count: 13 category: "Bosch" url: https://www.desertcart.com.eg/products/86992814-bosch-9621-oe-fine-wire-double-iridium-spark-plug-advanced store_origin: EG region: Egypt --- # 4X longer lifespan iridium tech 24% less voltage needed Factory pre-gapped, ready to install BOSCH 9621 OE Fine Wire Double Iridium Spark Plug - Advanced Original Equipment Technology with 4X Life - Pack of 4 **Brand:** bosch **Price:** E£ 6010 **Availability:** ✅ In Stock ## Summary > ⚡ Ignite your engine’s potential with Bosch’s double iridium spark plugs! ## Quick Answers - **What is this?** BOSCH 9621 OE Fine Wire Double Iridium Spark Plug - Advanced Original Equipment Technology with 4X Life - Pack of 4 by bosch - **How much does it cost?** E£ 6010 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/86992814-bosch-9621-oe-fine-wire-double-iridium-spark-plug-advanced) ## Best For - bosch enthusiasts ## Why This Product - Trusted bosch brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fuel Economy Boost:** Optimized spark efficiency translates to noticeable improvements in fuel mileage—drive smarter, save more. - • **Durability That Outlasts:** Double iridium electrodes deliver 4X the lifespan of standard plugs, keeping your ride smooth and reliable mile after mile. - • **Plug & Play Installation:** Pre-gapped at 0.04 inches and corrosion-resistant nickel-plated threads mean no fuss, no anti-seize, just quick upgrades. - • **Precision Ignition Efficiency:** 360° laser-welded ultra-fine iridium wire slashes voltage demand by up to 24%, sparking peak engine performance. - • **Engineered for Modern Powertrains:** OE-matched design ensures flawless fit and function with Gasoline Direct Injection (GDI) engines for cutting-edge compatibility. ## Overview Bosch 9621 OE Fine Wire Double Iridium Spark Plugs combine advanced 360-degree laser welding and ultra-fine iridium electrodes to reduce voltage requirements by 24% and extend spark plug life by 4X. Factory pre-gapped and corrosion-resistant, these plugs are engineered for perfect fit and optimal performance in modern gasoline engines, including GDI technology, delivering enhanced durability, improved fuel efficiency, and hassle-free installation. ## Description Bosch OE Fine Wire Double Iridium Spark Plugs are engineered to deliver both high performance and long life, representing advanced original equipment (OE) spark plug technology. The ultra-fine wire design and laser welded tapered ground electrode deliver optimum performance, while the iridium center electrode and iridium ground electrode inlay help it to go the distance. OE-matched spark position ensures compatibility with Gasoline Direct Injection (GDI) technology used in modern gas engines. Bosch OE Fine Wire Double Iridium spark plugs are pre-gapped at the factory and ready to install right out of the box - gap adjustment prior to installation not required. The Nickel-plated rolled threads provide maximum resistance to corrosion - ensuring the spark plug removes easily from the cylinder head without galling - and do not require anti-seize during installation - saving time. Bosch Double Iridium Spark Plugs meet or exceed manufacturer design requirements for OE fit, form, and function for modern gasoline engines. Unlock the performance in your engine with Bosch Double Iridium Spark Plugs. Review: Near OEM quality at 1/4 cost - Near OEM performance at 25% of the cost! Bosch Quality replaced NGKs/Toyota OEMs. Great value and now the engine is running smoothly! I have seen a slight improvement in my mpg @1mpg overall in mixed driving conditions. Review: Quality Spark plugs - Installed in my Mazda 6 and now it's running much better ## Features - Bosch OE Fine Wire Double Iridium Spark Plugs feature both an iridium firing pin and an iridium ground electrode inlay that offer higher performance and 4X longer life compared to standard copper spark plugs - 360-degree laser welded ultra-fine wire iridium firing pin provides better ignitability - reducing voltage requirements up to 24% - and enhanced durability - Nickel-plated rolled threads provide maximum resistance to corrosion - ensuring the spark plugs remove easily from the cylinder head without galling - and do not require anti-seize during installation - saving time - Bosch OE Fine Wire Double Iridium spark plugs are pre-gapped at the factory and ready to install right out of the box - gap adjustment prior to installation not required - Meets or exceeds manufacturer design requirements for OE fit, form, and function for modern gasoline engines - including Gasoline Direct Injection (GDI) engines - Compatible with select vehicles including, but not limited to, the following (Note: engine affects fitment - verify specific fitment details with fit checker above): INFINITI: 2008-12 EX35, 2013 EX37, 2009-12 FX35, 2013 FX37, 2009-13 FX50, 2011-12 G25 - Compatible with (continued): INFINITI: 2007-08 G35, 2008-13 G37, 2013 JX35, 2009-10 M35, 2012-13 M35h, 2011-13 M37, 2011-13 M56, 2015 Q40, 2014-18 Q50, 2014-16 Q60, 2014-19 Q70, 2015-19 Q70L, 2014-17 QX50, 2011-13 QX56, 2014-24 QX60 - Compatible with (continued): INFINITI: 2014-20 QX70, 2014-24 QX80; MAZDA: 2015-16,2018-21 2, 2012-23 3, 2014-21 6, 2016-21 CX-3, 2020-23 CX-30, 2013-24 CX-5, 2023-24 CX-50, 2025 CX-70, 2024-25 CX-90, 2016-25 Miata; NISSAN: 2007-09 350Z - Compatible with (continued): NISSAN: 2009-20 370Z, 2007-22 Altima, 2017-24 Armada, 2006-08 Frontier, 2020-25 Frontier, 2009-23 Maxima, 2009-24 Murano, 2018-21 NV2500, 2018-21 NV3500, 2013-25 Pathfinder, 2011-17 Quest, 2021 Rogue - Compatible with (continued): NISSAN: 2020-22 Sentra, 2017-24 Titan, 2016-24 Titan XD; PONTIAC: 2009-10 Vibe; SCION: 2016 iA; TOYOTA: 2016-20 Yaris, 2017-18 Yaris iA, 2016-20 Yaris R ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0762GB2TM | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #26,517 in Automotive ( See Top 100 in Automotive ) #157 in Automotive Replacement Spark Plugs | | Brand | Bosch | | Brand Name | Bosch | | Compatible with Vehicle Type | Car, SUV, Truck | | Core Material | Iridium | | Customer Reviews | 4.5 out of 5 stars 681 Reviews | | Gap Size | 0.04 inches | | Global Trade Identification Number | 00028851034265 | | Included Components | Spark Plugs | | Item Type Name | Spark Plugs | | Manufacturer | Bosch Automotive | | Manufacturer Part Number | 9621 | | Manufacturer Warranty Description | Limited | | Model Number | 9621 | | Number of Items | 1 | | Thread Size | 12mm | | Top Material Type | Iridium | | UPC | 028851034265 | | Unit Count | 4 Count | | Vehicle Service Type | Car, SUV, Truck | ## Product Details - **Brand:** Bosch - **Core Material:** Iridium - **Thread Size:** 12mm - **Top Material Type:** Iridium - **Vehicle Service Type:** Car, SUV, Truck ## Images ![BOSCH 9621 OE Fine Wire Double Iridium Spark Plug - Advanced Original Equipment Technology with 4X Life - Pack of 4 - Image 1](https://m.media-amazon.com/images/I/71FZXJroy2L.jpg) ![BOSCH 9621 OE Fine Wire Double Iridium Spark Plug - Advanced Original Equipment Technology with 4X Life - Pack of 4 - Image 2](https://m.media-amazon.com/images/I/61GmL0w8STL.jpg) ![BOSCH 9621 OE Fine Wire Double Iridium Spark Plug - Advanced Original Equipment Technology with 4X Life - Pack of 4 - Image 3](https://m.media-amazon.com/images/I/61SR5jxEiPL.jpg) ![BOSCH 9621 OE Fine Wire Double Iridium Spark Plug - Advanced Original Equipment Technology with 4X Life - Pack of 4 - Image 4](https://m.media-amazon.com/images/I/51Q9udIwTTL.jpg) ![BOSCH 9621 OE Fine Wire Double Iridium Spark Plug - Advanced Original Equipment Technology with 4X Life - Pack of 4 - Image 5](https://m.media-amazon.com/images/I/61xQszqJFIL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Near OEM quality at 1/4 cost *by R***R on April 22, 2026* Near OEM performance at 25% of the cost! Bosch Quality replaced NGKs/Toyota OEMs. Great value and now the engine is running smoothly! I have seen a slight improvement in my mpg @1mpg overall in mixed driving conditions. ### ⭐⭐⭐⭐⭐ Quality Spark plugs *by S***H on August 2, 2026* Installed in my Mazda 6 and now it's running much better ### ⭐⭐⭐⭐⭐ Make that motor purr *by S***B on August 30, 2026* Inexpensive and added the pep back to a motor that needed some love. Gap was perfect out of the box and the installation went without a hitch. Gas mileage improved by a decent amount, we're averaging about 20 extra miles per tank. --- ## 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.com.eg/products/86992814-bosch-9621-oe-fine-wire-double-iridium-spark-plug-advanced](https://www.desertcart.com.eg/products/86992814-bosch-9621-oe-fine-wire-double-iridium-spark-plug-advanced) --- *Product available on Desertcart Egypt* *Store origin: EG* *Last updated: 2026-10-20*