--- product_id: 73330010 title: "9603 OE Fine Wire Double Iridium Spark Plug - Advanced Original Equipment Technology with 4X Life - Pack of 4" brand: "bosch" price: "NZ$105" currency: NZD in_stock: true category: "Bosch" url: https://www.desertcart.nz/products/73330010-9603-oe-fine-wire-double-iridium-spark-plug-advanced-original store_origin: NZ region: New Zealand --- # 4X longer lifespan 24% less voltage needed Corrosion-resistant threads 9603 OE Fine Wire Double Iridium Spark Plug - Advanced Original Equipment Technology with 4X Life - Pack of 4 **Brand:** bosch **Price:** NZ$105 **Availability:** ✅ In Stock ## Summary > ⚡ Spark your engine’s potential with Bosch Double Iridium – where longevity meets performance! ## Quick Answers - **What is this?** 9603 OE Fine Wire Double Iridium Spark Plug - Advanced Original Equipment Technology with 4X Life - Pack of 4 by bosch - **How much does it cost?** NZ$105 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/73330010-9603-oe-fine-wire-double-iridium-spark-plug-advanced-original) ## 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 - • **Ignite with Precision:** 360° laser-welded ultra-fine iridium wire ensures lightning-fast, reliable sparks every time. - • **OE-Grade Compatibility:** Meets or exceeds original equipment specs for modern GDI engines—trusted by top automakers worldwide. - • **Plug & Play Performance:** Factory pre-gapped and ready to install—no adjustments, no delays, just instant upgrade. - • **Engineered for Endurance:** Double iridium electrodes deliver 4X the lifespan of standard plugs—less hassle, more miles. - • **Corrosion-Proof Installation:** Nickel-plated rolled threads resist galling and eliminate the need for anti-seize—save time and stress. ## Overview Bosch 9603 OE Fine Wire Double Iridium Spark Plugs combine advanced iridium technology and precision engineering to deliver superior ignitability with 24% less voltage, 4X longer life than copper plugs, and corrosion-resistant nickel-plated threads. Pre-gapped and OE-matched for modern gasoline and GDI engines, these plugs ensure hassle-free installation and reliable performance across a wide range of vehicles. ## 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. ## 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 unthread 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): ACURA: 92-01 Integra, 91-95 Legend, 91-05 NSX; HONDA: 11-16 CR-Z; JAGUAR: 01 XJ8 - Compatible with (cont): JAGUAR: 98-01 XJR, 00-02 XKR; LEXUS: 94-06 ES300/330, 98-00 GS400, 01-07 GS430, 03-09 GX470, 10-12 HS250h, 90-94,97-00 LS400, 01-06 LS430, 98-07 LX470, 99-06 RX300/330, 06-08 RX400h, 92-94 SC300, 92-00 SC400, 02-10 SC430 - Compatible with (cont): LINCOLN: 00-06 LS; MERCEDES-BENZ: 02-04 C32, 05-07 C55, 03-06 CLK55, 00-04 SLK230, 02-04 SLK32, 06-11 SLK55; MITSUBISHI: 11-17 Lancer, 11-20 Outlander Sport; NISSAN: 99-01 Altima, 99-00 Frontier, 98-00 Pathfinder - Compatible with (cont): PONTIAC: 03-06,09-10 Vibe; SCION: 05-10 tC, 08-12 xB; SUBARU: 10-13 Legacy, 10-15 Outback; SUZUKI: 06-08 Grand Vitara, 04-11 Swift/Swift+, 04-06 Verona, 05-06 XL-7; TOYOTA: 03-09 4Runner, 95-04 Avalon, 92-11 Camry - Compatible with (cont): TOYOTA: 92-05 Celica, 05-06,09-10,12-13 Corolla, 01-10 Highlander, 98-07 Land Cruiser, 03-06,09-12 Matrix, 92-95 MR2, 96-08 RAV4, 05-12 Sequoia, 98-06 Sienna, 99-08 Solara, 93-98 Supra, 05-10 Tundra; VOLVO: 07-10 S80, 05-11 XC90 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0792LVCZW | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | #51,199 in Automotive ( See Top 100 in Automotive ) #316 in Automotive Replacement Spark Plugs | | Brand Name | Bosch | | Compatible with Vehicle Type | Car, SUV, Truck | | Core Material | Iridium | | Customer Reviews | 4.6 4.6 out of 5 stars (718) | | Global Trade Identification Number | 00028851010382 | | Included Components | Spark Plugs | | Item Type Name | Spark Plugs | | Item Weight | 6.88 ounces | | Manufacturer | Bosch Automotive | | Manufacturer Part Number | 9603 | | Manufacturer Warranty Description | Limited | | Model Number | 9603 | | Number of Items | 1 | | Thread Size | M30 | | Top Material Type | Iridium | | UPC | 028851010382 | | Unit Count | 1 Count | ## Product Details - **Brand:** Bosch - **Core Material:** Iridium - **Thread Size:** M30 - **Top Material Type:** Iridium - **Vehicle Service Type:** Car, SUV, Truck ## Images ![9603 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) ## Available Options This product comes in different **Size, Style** options. ## 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.nz/products/73330010-9603-oe-fine-wire-double-iridium-spark-plug-advanced-original](https://www.desertcart.nz/products/73330010-9603-oe-fine-wire-double-iridium-spark-plug-advanced-original) --- *Product available on Desertcart New Zealand* *Store origin: NZ* *Last updated: 2026-09-11*