--- product_id: 345556227 title: "Bosch 9603 OE Fine Wire Double Iridium Spark Plug - Pack of 4" brand: "bosch" price: "€ 79.18" currency: EUR in_stock: true reviews_count: 5 category: "Bosch" url: https://www.desertcart.de/products/345556227-bosch-9603-oe-fine-wire-double-iridium-spark-plug-pack store_origin: DE region: Germany --- # 4X longer service life vs copper plugs 0.6mm ultra-fine wire for superior ignitability 360° laser weld for unmatched durability Bosch 9603 OE Fine Wire Double Iridium Spark Plug - Pack of 4 **Brand:** bosch **Price:** € 79.18 **Availability:** ✅ In Stock ## Summary > ⚡ Ignite your drive with Bosch’s double iridium spark—where precision meets endurance! ## Quick Answers - **What is this?** Bosch 9603 OE Fine Wire Double Iridium Spark Plug - Pack of 4 by bosch - **How much does it cost?** € 79.18 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/345556227-bosch-9603-oe-fine-wire-double-iridium-spark-plug-pack) ## 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 - • **Built to Withstand:** 360-degree continuous laser weld fuses corrosion-resistant iridium for maximum durability under pressure. - • **Plug & Play Simplicity:** Factory pre-gapped and nickel-plated threads mean no anti-seize needed—easy install, zero hassle. - • **Endurance That Outlasts:** Double iridium electrodes deliver 4X longer lifespan, keeping your ride smooth and reliable. - • **Precision Ignition Power:** Ultra-fine 0.6mm iridium wire ensures lightning-fast spark and peak engine performance. - • **OE-Matched for Modern Engines:** Perfectly compatible with Gasoline Direct Injection (GDI) tech for optimized fuel efficiency and power. ## Overview Bosch 9603 OE Fine Wire Double Iridium Spark Plugs feature ultra-fine 0.6mm iridium firing pins and ground electrodes, delivering 4X longer service life than standard copper plugs. With 360-degree laser welding for enhanced durability and factory pre-gapped nickel-plated threads, these plugs ensure easy installation and optimal performance, especially in modern GDI engines. ## Description Bosch 9603/FR7KII33X 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 ground electrode help it to go the distance. OE-matched spark position ensures compatibility with Gasoline Direct Injection (GDI) technology used in modern gas engines. Bosch Double Iridium Spark Plugs are pre-gapped at the factory and feature nickel plated rolled threads that require no anti-seize, for simple, easy installation right out of the box. Unlock the performance in your engine with Bosch Double Iridium Spark Plugs. Review: Works well - Works well as it is supposed to do.. Review: طابق مع سيارتك قبل ماتشتري - تاكد انه مخصص لسيارتك ## Features - Double Iridium firing pin and ground electrode inlay provide 4X longer service life compared to standard copper plugs - 0.6mm fine wire firing pin provides superior ignitability and performance - 360 Degree continuous laser weld fuses corrosion resistant iridium firing pin to base for increased durability - 7 year performance satisfaction - International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0792LVCZW | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | 407,902 in Automotive ( See Top 100 in Automotive ) 1,666 in Car Spark Plugs | | Brand | Bosch | | Brand Name | Bosch | | Compatible with Vehicle Type | Car, SUV, Truck | | Core Material | Iridium | | Core material | Iridium | | Customer Reviews | 4.6 out of 5 stars 676 Reviews | | Gap Size | 0.6 Millimeters | | Global Trade Identification Number | 00028851010382 | | Item Type Name | Up to 4X Longer Life (4 Pk) Acura; Chrysler; Ford; Honda; Infiniti; Jaguar; Lexus; Mercedes-Benz; Mitsubishi; Nissan; Subaru; Toyota +More | | Item Weight | 197 g | | Manufacturer | Bosch | | Manufacturer Part Number | 9603 | | Model Number | 9603 | | Thread Size | M30 | | Thread size | M30 | | Top Material Type | Nickel | | Top material type | Nickel | | UPC | 028851010382 | | Unit Count | 4.0 count | | Vehicle service type | Car, SUV, Truck | ## Product Details - **Brand:** Bosch - **Core material:** Iridium - **Thread size:** M30 - **Top material type:** Nickel - **Vehicle service type:** Car, SUV, Truck ## Images ![Bosch 9603 OE Fine Wire Double Iridium Spark Plug - Pack of 4 - Image 1](https://m.media-amazon.com/images/I/71FZXJroy2L.jpg) ![Bosch 9603 OE Fine Wire Double Iridium Spark Plug - Pack of 4 - Image 2](https://m.media-amazon.com/images/I/61GmL0w8STL.jpg) ![Bosch 9603 OE Fine Wire Double Iridium Spark Plug - Pack of 4 - Image 3](https://m.media-amazon.com/images/I/61SR5jxEiPL.jpg) ![Bosch 9603 OE Fine Wire Double Iridium Spark Plug - Pack of 4 - Image 4](https://m.media-amazon.com/images/I/51Q9udIwTTL.jpg) ![Bosch 9603 OE Fine Wire Double Iridium Spark Plug - Pack of 4 - Image 5](https://m.media-amazon.com/images/I/61xQszqJFIL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works well *by A***N on 23 October 2024* Works well as it is supposed to do.. ### ⭐⭐⭐⭐⭐ طابق مع سيارتك قبل ماتشتري *by M***N on 10 November 2023* تاكد انه مخصص لسيارتك ### ⭐⭐⭐⭐⭐ Excellent spark plug *by D***R on 22 April 2025* I hadn't replaced the spark plugs in my Toyota Corolla for over 15,000 km and though I should, even though I had no issues. Interestingly I removed the old ones which were identical to these that I just purchased. Obviously I made the right choice again without knowing it. Car continues to run great with 171,000 km. ## Frequently Bought Together - BOSCH 9603 OE Fine Wire Double Iridium Spark Plug - Pack of 4 - FEL-PRO VS 50530 R Engine Valve Cover Gasket Set for Toyota Camry --- ## 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.de/products/345556227-bosch-9603-oe-fine-wire-double-iridium-spark-plug-pack](https://www.desertcart.de/products/345556227-bosch-9603-oe-fine-wire-double-iridium-spark-plug-pack) --- *Product available on Desertcart Germany* *Store origin: DE* *Last updated: 2026-09-07*