--- product_id: 18281064 title: "234-4509 O2 Oxygen Sensor" brand: "denso" price: "₹ 17385" currency: INR in_stock: true reviews_count: 13 category: "Denso" url: https://www.desertcart.in/products/18281064-234-4509-o2-oxygen-sensor store_origin: IN region: India --- # Optimizes Fuel Efficiency Universal Fit for easy install Durable multi-layer protection 234-4509 O2 Oxygen Sensor **Brand:** denso **Price:** ₹ 17385 **Availability:** ✅ In Stock ## Summary > 🛠️ Upgrade your ride with precision sensing — never miss a beat on performance! ## Quick Answers - **What is this?** 234-4509 O2 Oxygen Sensor by denso - **How much does it cost?** ₹ 17385 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/18281064-234-4509-o2-oxygen-sensor) ## 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 - • **Reliable OEM Quality:** Constructed from premium stainless steel, platinum, and ceramics for unmatched durability. - • **Fuel Efficiency Booster:** Accurately detects oxygen levels to optimize combustion and reduce fuel consumption. - • **Plug & Play Universal Fit:** Seamlessly integrates with most vehicles for hassle-free installation. - • **Advanced Multi-Layer Protection:** Double protection with aluminum oxide trap and porous PTFE filter for extended sensor life. - • **Precision OE Standard Manufacturing:** Engineered to meet original equipment standards ensuring perfect performance. ## Overview The Denso-234-4509 Oxygen Sensor is a universal-fit, high-quality replacement part designed to accurately monitor oxygen levels in your vehicle's exhaust system. Built with premium materials and advanced multi-layer protection, it ensures precise fuel mixture control, improves engine efficiency, and extends sensor lifespan. Trusted by professionals and backed by OEM standards, this sensor is your go-to solution for restoring optimal engine performance and eliminating check engine warnings. ## Description Denso Oxygen Sensor is designed to detect the amount of oxygen in the exhaust stream. It is constructed from high quality stainless steel, porous polytetrafluoroethylene, fluorine rubber, aluminum oxide, high-grade platinum and ceramics. This Sensor features double protection layer, aluminum oxide trap layer, porous PTFE filter and stainless steel housing. It is manufactured with precision to meet OE standards. This oxygen sensor can be installed easily and ensures longevity. Review: Fixed the 2007 Lexus RX350. - Resolved the computer code and Service Engine Light. Pretty easy to replace with just metric ratchet set, metric wrench and mallet. Hardest part was getting the old one off. Tried PB Blaster, but not sure that helped. Tried running the engine for awhile to get it nice and hot (be careful under there when it is hot, easy to get a nasty burn). I think the heat may have helped along with a mallet to pound on the wrench handle. Either that or just persistence. Comes with a bit of anti-seize compound. All the attachment clips fit exactly which is great because these are always a bear to get off without breaking. In this case can just cut and grab without having to try and save them. Highly recommended to fix this sensor code. Review: Perfect OEM Replacement - Fixed My Check Engine Light Immediately - I purchased this Denso 234-4509 to replace the downstream O2 sensor on my 2015 Toyota Highlander Limited (U.S. model), and it worked perfectly. The part arrived well-packaged, brand-new, and matched the original factory sensor exactly, same connector, same length, same markings. Installation was straightforward, and after replacing it, my Check Engine light and “Check AWD System” message disappeared immediately. The engine is running smoother, and the readings stabilized right away. I know there are many counterfeit sensors out there, so I was a bit cautious ordering from desertcart, but this one turned out to be 100% genuine OEM Denso. Highly recommended if you want the right part without paying dealer prices. ## Features - Fit type: Universal Fit - Efficient Fuel Consumption - Constructed from high quality material - Designed to detect the amount of oxygen in the exhaust system ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0018JVJB6 | | Best Sellers Rank | #232,424 in Automotive ( See Top 100 in Automotive ) #105,721 in Automotive Replacement Parts | | Brand Name | Denso | | Customer Reviews | 4.6 4.6 out of 5 stars (293) | | Global Trade Identification Number | 00042511112728 | | Included Components | Oxygen (O2) Sensor | | Item Dimensions | 5.75 x 3.88 x 2.19 inches | | Item Type Name | Oxygen Sensor | | Item Weight | 4 ounces | | Manufacturer | DENSO | | Material Type | Stainless Steel, Zirconium | | Model | 234-4509 | | Mounting Type | Thread-In | | Output Type | Push-Pull | | Specific Uses For Product | Replacement Oxygen (O2) Sensor | | Style Name | Replacement Part | | UPC | 042511112728 | | Warranty Description | Manufacturer Warranty | ## Product Details - **Brand:** Denso - **Item Weight:** 4 ounces - **Item dimensions L x W x H:** 5.75 x 3.88 x 2.19 inches - **Material:** Stainless Steel, Zirconium - **Style:** Replacement Part ## Images ![234-4509 O2 Oxygen Sensor - Image 1](https://m.media-amazon.com/images/I/51hKYkf6-rL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fixed the 2007 Lexus RX350. *by I***R on September 30, 2017* Resolved the computer code and Service Engine Light. Pretty easy to replace with just metric ratchet set, metric wrench and mallet. Hardest part was getting the old one off. Tried PB Blaster, but not sure that helped. Tried running the engine for awhile to get it nice and hot (be careful under there when it is hot, easy to get a nasty burn). I think the heat may have helped along with a mallet to pound on the wrench handle. Either that or just persistence. Comes with a bit of anti-seize compound. All the attachment clips fit exactly which is great because these are always a bear to get off without breaking. In this case can just cut and grab without having to try and save them. Highly recommended to fix this sensor code. ### ⭐⭐⭐⭐⭐ Perfect OEM Replacement - Fixed My Check Engine Light Immediately *by T***S on November 26, 2025* I purchased this Denso 234-4509 to replace the downstream O2 sensor on my 2015 Toyota Highlander Limited (U.S. model), and it worked perfectly. The part arrived well-packaged, brand-new, and matched the original factory sensor exactly, same connector, same length, same markings. Installation was straightforward, and after replacing it, my Check Engine light and “Check AWD System” message disappeared immediately. The engine is running smoother, and the readings stabilized right away. I know there are many counterfeit sensors out there, so I was a bit cautious ordering from Amazon, but this one turned out to be 100% genuine OEM Denso. Highly recommended if you want the right part without paying dealer prices. ### ⭐⭐⭐⭐⭐ Oxygen Sensor downstream *by H***O on July 21, 2025* Exact fit for 2004 lexus rx330. Fixed check engine light issues. ## Frequently Bought Together - Denso 234-4509 Heated 4-Wire Oxygen Sensor with 25.5” Harness for 2004-2016 Lexus/Toyota V6 Right-Bank Downstream - Denso 234-4168 Downstream Oxygen Sensor with 4-Wire 13.7” Harness - Denso 234-9042 Air Fuel Ratio Sensor --- ## 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.in/products/18281064-234-4509-o2-oxygen-sensor](https://www.desertcart.in/products/18281064-234-4509-o2-oxygen-sensor) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-05-08*