--- product_id: 20323951 title: "ACDelco Professional 41-121 (55585517) Iridium Spark Plug (Pack of 1)" brand: "acdelco" price: "B/.52" currency: PAB in_stock: true url: https://www.desertcart.com.pa/products/20323951-acdelco-professional-41-121-55585517-iridium-spark-plug-pack-1 store_origin: PA region: Panama --- # Iridium fine-wire electrode for efficient spark Suppressor seal blocks radio frequency interference High melting point for durability & wear resistance ACDelco Professional 41-121 (55585517) Iridium Spark Plug (Pack of 1) **Brand:** acdelco **Price:** B/.52 **Availability:** ✅ In Stock ## Summary > ⚡ Ignite your ride with precision and power — don’t get left in the dust! ## Quick Answers - **What is this?** ACDelco Professional 41-121 (55585517) Iridium Spark Plug (Pack of 1) by acdelco - **How much does it cost?** B/.52 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/20323951-acdelco-professional-41-121-55585517-iridium-spark-plug-pack-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 - • **Clean Performance:** Fine-wire design actively burns away carbon deposits, maintaining peak efficiency. - • **Electronics Friendly:** One-piece suppressor seal blocks disruptive radio frequencies for smooth vehicle electronics. - • **Perfect Fit Guarantee:** Engineered as an exact OEM replacement for seamless installation and optimal performance. - • **Long-Lasting Durability:** High melting point iridium core resists wear for extended spark plug life. - • **Precision Ignition Power:** Iridium electrode ensures stable engine idle and lightning-fast acceleration. ## Overview The ACDelco Professional 41-121 Iridium Spark Plug delivers superior engine performance with a durable iridium fine-wire electrode that ensures stable idling, quick acceleration, and long-lasting wear resistance. Its suppressor seal minimizes electronic interference, making it an ideal OEM replacement for motorcycles and other vehicles, backed by a 7-year unlimited mile warranty. ## 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. ## 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 | #396,734 in Automotive ( See Top 100 in Automotive ) #2,205 in Automotive Replacement Spark Plugs | | Brand Name | ACDelco | | Compatible with Vehicle Type | Motorcycle | | Core Material | Iridium | | Customer Reviews | 4.8 4.8 out of 5 stars (806) | | 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 | | Number of Items | 1 | | Number of Packs | 1 | | OEM Equivalent Part Number | 55585517 | | Part Interchange Info | 41-121 | | Thread Size | 14mm | | Top Material Type | Nickel | | UPC | 707773972090 | | Unit Count | 1 Count | ## Product Details - **Brand:** ACDelco - **Core Material:** Iridium - **Thread Size:** 14mm - **Top Material Type:** Nickel - **Vehicle Service Type:** Motorcycle ## Images ![ACDelco Professional 41-121 (55585517) Iridium Spark Plug (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/61Z3E8ykbwL.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. ## 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.pa/products/20323951-acdelco-professional-41-121-55585517-iridium-spark-plug-pack-1](https://www.desertcart.com.pa/products/20323951-acdelco-professional-41-121-55585517-iridium-spark-plug-pack-1) --- *Product available on Desertcart Panama* *Store origin: PA* *Last updated: 2026-10-09*