--- product_id: 20323951 title: "Professional 41-121 (55585517) Iridium Spark Plug (Pack of 1)" brand: "acdelco" price: "KD 7.10" currency: KWD in_stock: true reviews_count: 13 category: "Ac Delco" url: https://www.desertcart.com.kw/products/20323951-professional-41-121-55585517-iridium-spark-plug-pack-of-1 store_origin: KW region: Kuwait --- # One-piece suppressor seal blocks radio interference Iridium fine-wire electrode for superior ignition Quick cold starts & rapid acceleration Professional 41-121 (55585517) Iridium Spark Plug (Pack of 1) **Brand:** acdelco **Price:** KD 7.10 **Availability:** ✅ In Stock ## Summary > ⚡ Ignite your drive with ACDelco’s pro-grade iridium spark plug — because smooth rides wait for no one! ## Quick Answers - **What is this?** Professional 41-121 (55585517) Iridium Spark Plug (Pack of 1) by acdelco - **How much does it cost?** KD 7.10 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/20323951-professional-41-121-55585517-iridium-spark-plug-pack-of-1) ## Best For - acdelco enthusiasts ## Why This Product - Trusted acdelco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Tech-Forward Design:** Suppressor seal prevents electronic interference for seamless vehicle operation - • **Effortless Cold Starts:** Small electrode design enables quick ignition even in low temps - • **Precision Ignition Power:** Iridium electrode ensures stable idle and smooth engine performance - • **Carbon-Busting Efficiency:** Fine-wire tip actively burns away deposits, maintaining peak spark quality - • **Durability Meets Performance:** High melting point iridium resists wear for long-lasting reliability ## Overview The ACDelco Professional 41-121 Iridium Spark Plug delivers cutting-edge ignition technology with a fine-wire iridium electrode that enhances engine idle stability, accelerates cold starts, and resists carbon buildup. Its one-piece suppressor seal blocks radio frequency interference, ensuring flawless vehicle electronics performance. Backed by a 7-year unlimited mile warranty, this spark plug is engineered for durability, precision, and seamless OEM fitment across compatible motorcycles and vehicles. ## Description ACDelco Professional Iridium Spark Plugs are a high quality replacement for many vehicles on the road today. They are our latest in spark plug technology and an exact replacement for your vehicle’s original components. Iridium composition provides a high melting point and great strength, and provides excellent wear resistance and durability. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. Review: Great product - Great price Came fast Works great in 2015 Cruze Review: OEM plugs. Get a torque wrench. - OEM plugs for my 2015 Chevrolet Trax. Came pre-gapped. I verified the gap and they were all correct. Took minutes to install. My vehicle runs much smoother nwo! Word of the wise: use a torque wrench to make sure you don’t over tighten the plugs. You’ll regret it otherwise. ## Features - Iridium offers excellent engine idle stability and smooth performance - Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration - Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form - One piece suppressor seal helps block radio frequencies that can affect vehicle electronics - Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00DU252BM | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #115,433 in Automotive ( See Top 100 in Automotive ) #785 in Automotive Replacement Spark Plugs | | Brand | ACDelco | | Brand Name | ACDelco | | Compatible with Vehicle Type | Motorcycle | | Core Material | Iridium | | Customer Reviews | 4.8 out of 5 stars 799 Reviews | | Global Trade Identification Number | 40707773972098 | | Included Components | Spark Plug | | Item Type Name | Spark Plug | | Item Weight | 1.44 Ounces | | Manufacturer | ACDelco | | Manufacturer Part Number | 55585517 | | Manufacturer Warranty Description | 7 Year / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details. | | Model Number | 41-121 | | OEM Equivalent Part Number | 55585517 | | Part Interchange Info | 41-121 | | Thread Size | 14mm | | Top Material Type | Nickel | | UPC | 707773972090 | | Unit Count | 1.0 Count | | Vehicle Service Type | Motorcycle | ## Product Details - **Brand:** ACDelco - **Core Material:** Iridium - **Thread Size:** 14mm - **Top Material Type:** Nickel - **Vehicle Service Type:** Motorcycle ## Images ![Professional 41-121 (55585517) Iridium Spark Plug (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/61Z3E8ykbwL.jpg) ![Professional 41-121 (55585517) Iridium Spark Plug (Pack of 1) - Image 2](https://m.media-amazon.com/images/I/818P2Bdzy9L.jpg) ![Professional 41-121 (55585517) Iridium Spark Plug (Pack of 1) - Image 3](https://m.media-amazon.com/images/I/51GsZPs3vtL.jpg) ![Professional 41-121 (55585517) Iridium Spark Plug (Pack of 1) - Image 4](https://m.media-amazon.com/images/I/61xROU51oHL.jpg) ![Professional 41-121 (55585517) Iridium Spark Plug (Pack of 1) - Image 5](https://m.media-amazon.com/images/I/71dSTHf6S5L.jpg) ## Questions & Answers **Q: Is there a recommended interval for changing my vehicle’s spark plugs?** A: Yes, the interval depends on each vehicle model’s specifications. Refer to your vehicle Owner’s Manual for guidance on when you should change your vehicle’s spark plugs. **Q: Should I change all of my vehicle’s spark plugs at the same time?** A: Yes, when it is time for a scheduled spark plug replacement, all spark plugs should be changed. If a single spark plug is fouled or damaged outside of scheduled maintenance, finding the source of the damage and changing it is recommended. **Q: Can I just clean my spark plugs instead of replacing them?** A: No, ACDelco does not recommend cleaning old spark plugs. Cleaning spark plugs does not repair broken components, chipped insulator tips, and worn electrodes and wires. **Q: What is pre-ignition and can it damage my engine?** A: Yes, pre-ignition can cause serious damage to an engine. Pre-ignition, often accompanied by engine knocking sounds, air and fuel ignite in the engine before the spark plug fires. The condition commonly occurs when old spark plugs are worn or dirty. **Q: Does a diesel engine require a different type of plug than a gas engine?** A: Yes, diesel engines require glow plugs instead of spark plugs. To learn what type of glow plugs or spark plugs your vehicle requires, refer to your vehicle Owner’s Manual for guidance. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product *by A***N on September 5, 2025* Great price Came fast Works great in 2015 Cruze ### ⭐⭐⭐⭐⭐ OEM plugs. Get a torque wrench. *by M***D on September 28, 2025* OEM plugs for my 2015 Chevrolet Trax. Came pre-gapped. I verified the gap and they were all correct. Took minutes to install. My vehicle runs much smoother nwo! Word of the wise: use a torque wrench to make sure you don’t over tighten the plugs. You’ll regret it otherwise. ### ⭐⭐⭐⭐⭐ Great quality *by L***S on February 7, 2025* Excellent quality and great price! ## Frequently Bought Together - ACDelco GM Original Equipment 41-121 Iridium Spark Plug - ACDelco GM Original Equipment D521C Ignition Coil - Permatex 22058 Dielectric Tune-Up Grease, 3oz. - High Performance Dielectric Grease Used To Protect Terminals, Spark Plugs, Wiring And Other Electrical Connections Against Salt, Dirt, And Corrosion --- ## 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.kw/products/20323951-professional-41-121-55585517-iridium-spark-plug-pack-of-1](https://www.desertcart.com.kw/products/20323951-professional-41-121-55585517-iridium-spark-plug-pack-of-1) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-21*