--- product_id: 1253020 title: "Bosch Automotive 9657 Double Iridium OE Replacement Spark Plug Up to 4X Longer Life (1 Pk) Buick Cadillac Chevrolet Ford GMC Isuzu Mazda Mercedes-Benz Mercury, Merkur Oldsmobile Pontiac +More" brand: "bosch automotive" price: "98.33 DT" currency: TND in_stock: true reviews_count: 8 url: https://www.desertcart.tn/products/1253020-bosch-automotive-9657-double-iridium-oe-replacement-spark-plug-up store_origin: TN region: Tunisia --- # 0.6mm fine wire 4X longer life 360° laser weld Bosch Automotive 9657 Double Iridium OE Replacement Spark Plug Up to 4X Longer Life (1 Pk) Buick Cadillac Chevrolet Ford GMC Isuzu Mazda Mercedes-Benz Mercury, Merkur Oldsmobile Pontiac +More **Brand:** bosch automotive **Price:** 98.33 DT **Availability:** ✅ In Stock ## Summary > 🚗 Ignite Your Drive with Bosch's Best! ## Quick Answers - **What is this?** Bosch Automotive 9657 Double Iridium OE Replacement Spark Plug Up to 4X Longer Life (1 Pk) Buick Cadillac Chevrolet Ford GMC Isuzu Mazda Mercedes-Benz Mercury, Merkur Oldsmobile Pontiac +More by bosch automotive - **How much does it cost?** 98.33 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/1253020-bosch-automotive-9657-double-iridium-oe-replacement-spark-plug-up) ## Best For - bosch automotive enthusiasts ## Why This Product - Trusted bosch automotive brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Perfect Fit:** Original equipment, pre-gapped replacement for optimum fit, form, and function. - • **Unmatched Longevity:** Experience up to 4X longer service life than standard copper plugs. - • **Durability Redefined:** 360° continuous laser weld enhances corrosion resistance for lasting durability. - • **Precision Engineering:** 0.6mm fine wire firing pin ensures superior ignitability and performance. - • **Guaranteed Satisfaction:** Enjoy peace of mind with a 7-year performance satisfaction guarantee. ## Overview The Bosch Automotive 9657 Double Iridium OE Replacement Spark Plug is engineered for exceptional performance and longevity, featuring a double iridium firing pin that lasts up to 4X longer than standard plugs. With a 0.6mm fine wire design for superior ignitability and a robust 360° laser weld for enhanced durability, this spark plug is the perfect choice for a wide range of vehicles, backed by a 7-year satisfaction guarantee. ## Description Bosch Double Iridium Spark Plugs are engineered to deliver both high performance and long life, representing the best of 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. Unlock the performance in your engine with Bosch Double Iridium Spark Plugs. ## 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 guarantee - Original equipment, pre-gapped replacement delivering optimum fit, form and function - 86-88 Buick Century, 86-87 Buick Electra, 86-88 Buick LeSabre, 86-87 Buick Riviera, 86-88 Buick Skylark, 86-87 Buick Somerset, 85 Buick Somerset Regal, 82-83 Cadillac DeVille, 82-83 Cadillac Eldorado, 82-83 Cadillac Fleetwood, 82-83 Cadillac Seville - 98-02 Chevrolet Cavalier, 95-03 Chevrolet S10, 90-95 Ford Aerostar, 84-90 Ford Bronco II, 80-82 Ford Courier, 11 Ford Crown Victoria, 91-95 Ford Explorer, 80-83 Ford Fairmont, 09-10 Ford F-150, 81-82 Ford Granada, 79-86 Ford Mustang, 80 Ford Pinto - 83-92,01-10 Ford Ranger, 88-94 Ford Tempo, 95-03 GMC Sonoma, 98-00 Isuzu Hombre, 01-09 Mazda B2300, 84-93 Mercedes-Benz 0E, 87-89 Mercedes-Benz 260E, 88-89 Mercedes-Benz 300CE, 86-93 Mercedes-Benz 300E, 88-91 Mercedes-Benz 300SE - 88-91 Mercedes-Benz 300SEL, 88-93 Mercedes-Benz 300TE, 80 Mercury Bobcat, 80-82 Mercury Capri, 81 Mercury Cougar, 88-94 Mercury Topaz, 80-82 Mercury Zephyr, 88-89 Merkur Scorpio, 01-02 Oldsmobile Aurora, 85-87 Oldsmobile Calais - Oldsmobile: 88 Cutlass Calais, 86-88 Cutlass Ciera, 87-88 Cutlass Cruiser, 86-88 Delta 88, 99-02 Intrigue, 86-87 Toronado, 86-87 98; Pontiac: 87-88 Bonneville, 89 Firebird, 85-87 Grand Am, 89-90 Grand Prix, 98-02 Sunfire - Fit type: Vehicle Specific ## Images ![Bosch Automotive 9657 Double Iridium OE Replacement Spark Plug Up to 4X Longer Life (1 Pk) Buick Cadillac Chevrolet Ford GMC Isuzu Mazda Mercedes-Benz Mercury, Merkur Oldsmobile Pontiac +More - Image 1](https://images-na.ssl-images-amazon.com/images/I/71FZXJroy2L.jpg) ![Bosch Automotive 9657 Double Iridium OE Replacement Spark Plug Up to 4X Longer Life (1 Pk) Buick Cadillac Chevrolet Ford GMC Isuzu Mazda Mercedes-Benz Mercury, Merkur Oldsmobile Pontiac +More - Image 2](https://images-na.ssl-images-amazon.com/images/I/7146NFBC01L.jpg) ## Customer Reviews ### ⭐ Only Lasted 40k miles *by C***T on Reviewed in the United States on December 29, 2019* Installed these Bosch spark plugs on a 2010 Ford Ranger 2.3L 4 cylinder engine in Aug 2016. This month- Dec 2019 check engine light code P0302-cylinder 2 misfire came on. Had rough idle @ signal lights. Thought it was a bad ignition coil since I replaced the old iridium spark plugs with Bosch iridium spark plugs 3 years ago. Turned out to be a burnt Bosch iridium spark plug in cylinder 2. Replaced them with Motor Craft spark plugs & the engine sounds like new. I won't be buying any Bosch spark plugs in the future. Disappointed since they should have lasted @ least 100k miles. ### ⭐⭐⭐ Made in China *by B***K on Reviewed in the United States on July 14, 2019* Plugs are stamped with made in China, They were just thrown in a big box and two of the plugs came out of the obviously cheap cardboard packages and were rattling around inside the bigger box. Really disappointed. I don't want to install these. ### ⭐⭐⭐⭐⭐ Great Plugs *by A***B on Reviewed in the United States on July 10, 2012* I installed these plugs on a 2011 ford focus. No plug is going to turn your car into a supercharged prius, but the difference was definitely noticeable. My car was a 2011, so everything already worked up to factory specs, but i still noticed faster starts, better acceleration, and lower rpms at cruising speeds. I also average about 2-3 mpg improvement. For how inexpensive these are, you can't go wrong. The gaps are factory preset, so i would recommend going to the bosch website to determine the exact number for your vehicle with their parts finder. Mine was 9657, yours may be different. --- ## 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.tn/products/1253020-bosch-automotive-9657-double-iridium-oe-replacement-spark-plug-up](https://www.desertcart.tn/products/1253020-bosch-automotive-9657-double-iridium-oe-replacement-spark-plug-up) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-31*