--- product_id: 69009959 title: "Denso (3421) SK20HR11 Iridium Long Life Spark Plug Single Plug" brand: "denso" price: "€ 38.12" currency: EUR in_stock: true reviews_count: 5 category: "Denso" url: https://www.desertcart.it/products/69009959-denso-3421-sk20hr11-iridium-long-life-spark-plug-single-plug store_origin: IT region: Italy --- # extra long life durability 0.7mm fine wire iridium tip vehicle-specific precision fit Denso (3421) SK20HR11 Iridium Long Life Spark Plug Single Plug **Brand:** denso **Price:** € 38.12 **Availability:** ✅ In Stock ## Summary > ⚡ Ignite your drive with precision and power! ## Quick Answers - **What is this?** Denso (3421) SK20HR11 Iridium Long Life Spark Plug Single Plug by denso - **How much does it cost?** € 38.12 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/69009959-denso-3421-sk20hr11-iridium-long-life-spark-plug-single-plug) ## 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 - • **Unmatched Longevity:** Extra long life design means fewer replacements and more miles - • **Plug-and-Play Reliability:** No need to gap—ready to install right out of the box for hassle-free upgrades - • **Tailored Fit for Your Ride:** Engineered for vehicle-specific compatibility ensuring perfect installation - • **Premium Electrode Materials:** Iridium center and platinum ground electrodes for enhanced durability and consistent ignition - • **Precision Ignition Performance:** 0.7mm iridium center electrode for superior spark efficiency ## Overview The Denso SK20HR11 Iridium Long Life Spark Plug features a 0.7mm fine wire iridium-tipped center electrode and a platinum-tipped ground electrode, delivering superior ignition performance and extended durability. Designed for vehicle-specific fitment, this single spark plug offers hassle-free installation with no gapping required, making it a trusted upgrade for enhanced engine efficiency and reliability. ## Description This item is designed to fit specific vehicles. Please ensure correct part fitment before purchasing this project. Contact the seller directly for additional product information and availability.bBrand DescriptionbbrDenso has taken everything they have learned as an Original Equipment manufacturer and use it to their superior aftermarket product lines of auto parts.brbr Review: Replace the old ones. Review: One of the cylinders was giving a misfire and I decided to replace the previous autolite spark plug with these higher quality Denso plugs. It worked perfectly out of the box with no need to gap the plug. I would highly recommend these Denso plugs over the other brands. ## Features - Single Plug - Denso # 3421 - Extra Long Life Iridium Plug - 0.7mm Fine Wire Iridium Tipped Center Electrode - Platinum Tipped Ground Electrode ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B002FOO884 | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | 532,838 in Automotive ( See Top 100 in Automotive ) 2,039 in Car Spark Plugs | | Brand Name | Denso | | Compatible with Vehicle Type | Vehicle specific | | Core Material | Iridium | | Customer Reviews | 4.5 4.5 out of 5 stars (332) | | Global Trade Identification Number | 00042511034211 | | Included Components | Spark Plug | | Item Type Name | Spark plug | | Item Weight | 0.01 Ounces | | Manufacturer | Denso | | Manufacturer Part Number | SK20HR11 | | Model Number | 3421 (SK20HR11) | | OEM Equivalent Part Number | DAIHATSU 90048-51185-000, DAIHATSU 90919-01191-000, LEXUS 90919-01191, TOYOTA 90048-51185, TOYOTA 90919-01191 | | Thread Size | M14 | | Top Material Type | platinum | | UPC | 042511034211 | | Unit Count | 1.0 count | ## Product Details - **Brand:** Denso - **Core material:** Iridium - **Thread size:** M14 - **Top material type:** platinum - **Vehicle service type:** Vehicle specific ## Images ![Denso (3421) SK20HR11 Iridium Long Life Spark Plug Single Plug - Image 1](https://m.media-amazon.com/images/I/51+bqr9MqtL.jpg) ![Denso (3421) SK20HR11 Iridium Long Life Spark Plug Single Plug - Image 2](https://m.media-amazon.com/images/I/41D9uTNVzHL.jpg) ![Denso (3421) SK20HR11 Iridium Long Life Spark Plug Single Plug - Image 3](https://m.media-amazon.com/images/I/41mTW3uNF3L.jpg) ![Denso (3421) SK20HR11 Iridium Long Life Spark Plug Single Plug - Image 4](https://m.media-amazon.com/images/I/318AUIDRgML.jpg) ![Denso (3421) SK20HR11 Iridium Long Life Spark Plug Single Plug - Image 5](https://m.media-amazon.com/images/I/313RN97o5ZL.jpg) ## Questions & Answers **Q: is this spark plug compatible fit for my v6 sr5 4.o tacoma** A: Yes the exact fit for tacoma v6 4.0 great spark plugs I use them every time. **Q: My owners manual for 2014 toyoto land cruiser says these are the plugs for the 5.7 motor, same as the tundra. amazon has it wrong saying does not fit?** A: I have a 2011 Tacoma and I bought these Denso plugs and installed them. I would say that these are great plugs and considered O.E.M. replacement for Toyotas. That being said, I would caution you about trusting Amazon to sell you the correct plugs. Check your owner's manual and Toyota parts websites to be sure that you get the right ones. Cross reference the numbers as they all have slightly different specs. Changing plugs on a 4 cylinder was not easy but a V8 will be a challenge. Unfortunately, I have purchased auto parts from Amazon in the past and received the incorrect parts which I could not return. Amazon is not an authorized Toyota reseller. Also, be careful about non-Amazon vendors selling through Amazon. Their policies may be different than expected. Good luck! **Q: Does spark plug fits 08 honda civic 1.3L hybrid?** A: I don't know. check your owners manual if you have one or check online. I have a Toyota. **Q: What are these pre-gapped at? The sales page says .044" but some of the reviews say different. I know the spec gap for my Taco is .043"** A: I just bought 8 of these from a Toyota dealer. They were all gapped the same. Unfortunately, I also found out that NONE of the three gap gauges I have right now are accurate. I would say the plugs were accurately gapped at 044. 043 isn't going to hurt your Taco. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by L***N on 10 August 2025* Replace the old ones. ### ⭐⭐⭐⭐⭐ Review *by P***L on 22 March 2026* One of the cylinders was giving a misfire and I decided to replace the previous autolite spark plug with these higher quality Denso plugs. It worked perfectly out of the box with no need to gap the plug. I would highly recommend these Denso plugs over the other brands. ### ⭐⭐⭐⭐⭐ Review *by D***R on 4 April 2022* Great OEM replacement. Changed out the Champion plugged installed by previous owner of my 2007 Toyota FJ. Runs great, engine sounds healthier and runs smooth. ## Frequently Bought Together - Denso (3421) SK20HR11 Iridium Long Life Spark Plug, Single Plug - LEXIVON 5/8" Swivel Magnetic Spark Plug Socket, 3/8" Drive x 10" Total Length | Enhanced Magnetic Design with Thin Wall Socket, Cr-v Steel (LX-122) - DENSO -SK20HR11- IRIDIUM PLATINUM power pack Spark Plugs - # 3421-4 PCS * NEW * --- ## 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.it/products/69009959-denso-3421-sk20hr11-iridium-long-life-spark-plug-single-plug](https://www.desertcart.it/products/69009959-denso-3421-sk20hr11-iridium-long-life-spark-plug-single-plug) --- *Product available on Desertcart Italy* *Store origin: IT* *Last updated: 2026-05-12*