--- product_id: 541777656 title: "Denso SC16HR11 Iridium Long-Life Spark Plugs 3499-4 PK" brand: "denso" price: "€ 114.21" currency: EUR in_stock: true category: "Denso" url: https://www.desertcart.hr/products/541777656-denso-sc16hr11-iridium-long-life-spark-plugs-3499-4-pk store_origin: HR region: Croatia --- # Lasts 3x longer than conventional plugs 0.7mm iridium electrode for max ignitability Dual copper & glass seal for gas-tight durability Denso SC16HR11 Iridium Long-Life Spark Plugs 3499-4 PK **Brand:** denso **Price:** € 114.21 **Availability:** ✅ In Stock ## Summary > ⚡ Ignite your drive with Denso’s iridium edge—where longevity meets performance! ## Quick Answers - **What is this?** Denso SC16HR11 Iridium Long-Life Spark Plugs 3499-4 PK by denso - **How much does it cost?** € 114.21 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/541777656-denso-sc16hr11-iridium-long-life-spark-plugs-3499-4-pk) ## Best For - denso enthusiasts ## Why This Product - Trusted denso brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Thermal Mastery:** Copper core center electrode delivers superior heat dissipation, protecting your engine under pressure. - • **Flashover Fighter:** Unique five-rib insulator design minimizes voltage loss and prevents misfires for smooth, reliable rides. - • **OEM Trusted Quality:** Factory-installed on luxury vehicles by GM, Toyota, Honda, and Mitsubishi—your car deserves the best. - • **Endurance That Outlasts:** Engineered to last up to three times longer than standard spark plugs—less hassle, more drive time. - • **Precision Ignition Power:** Ultra-fine 0.7mm iridium tip ensures lightning-fast starts and peak engine performance. ## Overview Denso SC16HR11 Iridium Long-Life Spark Plugs feature a patented 0.7mm iridium alloy center electrode for superior ignitability and durability. With a copper core for enhanced thermal conductivity and a unique five-rib insulator to reduce flashover, these plugs last up to three times longer than conventional models. Trusted by top automakers and designed for vehicle-specific fit, they deliver reliable, OEM-quality performance for cars and trucks. ## Description Using the same laser welding process as the Iridium Power spark plug, DENSO designed a long life spark plug factory-installed on luxury vehicles by automakers such as GM, Toyota, Honda and Mitsubishi. Using its patented Iridium alloy, DENSO was able to shrink the center electrode to 0. 7mm, dramatically improving ignitability and longevity. ## Features - 100 percent pre-fired to ensure reliable operation - Copper core center electrode for superior thermal conductivity - Unique five-rib insulator reduces flashover and decreases voltage loss - Dual copper and glass seal bonds the center electrode and insulator together for a gas-tight seal. - Lasts up to three times as long as conventional plugs ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B083NJKY3Z | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #36,821 in Automotive ( See Top 100 in Automotive ) #215 in Automotive Replacement Spark Plugs | | Brand | Denso | | Brand Name | Denso | | Compatible with Vehicle Type | Car, Truck | | Core Material | Copper | | Customer Reviews | 4.9 out of 5 stars 81 Reviews | | Gap Size | 0.04 inches | | Included Components | Spark Plugs (4) | | Item Highlight | Replaces 90919-01275 4912. OE-grade iridium center for factory-spec efficiency and 80,000-100,000 mile service life. | | Item Type Name | Spark Plugs | | Item Weight | 0.01 kg | | Manufacturer | Denso | | Manufacturer Part Number | 3499-4PK | | Manufacturer Warranty Description | 1 year manufacturer | | Model Number | SC16HR11 (4PK) | | Number of Items | 4 | | OEM Equivalent Part Number | 16 115 481 80-CITROËN/PEUGEOT,90919-01253-DAIHATSU,90919-01253-SUBARU,90919-01253-TOYOTA,90919-01275-DAIHATSU,90919-01275-TOYOTA,90919-T1009-TOYOTA,90919-W1006-TOYOTA,90919-W1007-TOYOTA | | Thread Size | 12mm x 1.25mm | | Top Material Type | Iridium | | UPC | 042511349940 | | Unit Count | 1 Count | | Vehicle Service Type | Car, Truck | ## Product Details - **Brand:** Denso - **Core Material:** Copper - **Thread Size:** 12mm x 1.25mm - **Top Material Type:** Iridium - **Vehicle Service Type:** Car, Truck ## Images ![Denso SC16HR11 Iridium Long-Life Spark Plugs 3499-4 PK - Image 1](https://m.media-amazon.com/images/I/61y9e1CwSJL.jpg) ![Denso SC16HR11 Iridium Long-Life Spark Plugs 3499-4 PK - Image 2](https://m.media-amazon.com/images/I/51Gxj6KDb9L.jpg) ![Denso SC16HR11 Iridium Long-Life Spark Plugs 3499-4 PK - Image 3](https://m.media-amazon.com/images/I/41xcu0QXrNL.jpg) ![Denso SC16HR11 Iridium Long-Life Spark Plugs 3499-4 PK - Image 4](https://m.media-amazon.com/images/I/51MJ8dMiFNL.jpg) ![Denso SC16HR11 Iridium Long-Life Spark Plugs 3499-4 PK - Image 5](https://m.media-amazon.com/images/I/41CuvrBiZ1L.jpg) ## Frequently Bought Together - Denso SC16HR11 Iridium Long-Life Spark Plugs 3499-4 PK - AISIN WPT-190 New Engine Water Pump with Gaskets - Compatible with Select Lexus CT200h Toyota Prius, Prius C, Prius Plug-In, Prius V - Toyota Pcv Valve - 12204-37010 --- ## 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.hr/products/541777656-denso-sc16hr11-iridium-long-life-spark-plugs-3499-4-pk](https://www.desertcart.hr/products/541777656-denso-sc16hr11-iridium-long-life-spark-plugs-3499-4-pk) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-10-20*