--- product_id: 13328065 title: "234-9042 Air Fuel Ratio Sensor" brand: "denso" price: "A$247" currency: AUD in_stock: true reviews_count: 13 category: "Denso" url: https://www.desertcart.com.au/products/13328065-234-9042-air-fuel-ratio-sensor store_origin: AU region: Australia --- # Optimizes fuel efficiency Withstands up to 1000°C Precision OE fit & performance 234-9042 Air Fuel Ratio Sensor **Brand:** denso **Price:** A$247 **Availability:** ✅ In Stock ## Summary > ⛽ Upgrade your ride with precision fuel control — because every drop counts! ## Quick Answers - **What is this?** 234-9042 Air Fuel Ratio Sensor by denso - **How much does it cost?** A$247 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/13328065-234-9042-air-fuel-ratio-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 - • **Performance Mapping:** Continuously monitors air/fuel ratios across RPMs to boost engine responsiveness. - • **Exact OE Replacement:** Denso’s precision build guarantees a first-time perfect fit for your Lexus or Toyota. - • **Durability Under Fire:** Crafted from stainless steel and zirconium to endure extreme engine temps up to 1000°C. - • **Long-Term Reliability:** Trusted OEM quality that lasts decades, protecting your catalytic converter and wallet. - • **Fuel Efficiency Maximized:** Engineered to fine-tune air/fuel mix for peak MPG and lower emissions. ## Overview The Denso 234-9042 Air Fuel Ratio Sensor is a high-precision replacement part designed specifically for select Lexus and Toyota models. Built to OE standards with stainless steel and zirconium, it ensures exact fitment and reliable performance. By accurately monitoring and adjusting the air/fuel mixture, it maximizes fuel efficiency, reduces emissions, and extends catalytic converter life, all while enduring engine temperatures up to 1000°C. ## Description Denso part number 234-9042 is a replacement air/fuel ratio sensor for 2002-2003 Lexus ES300, 2004-2006 Lexus ES330, 2004-2006 Lexus RX330, 2007 & 2010-2011 Lexus RX350, 2006-2008 Lexus RX400h, 2002-2006 Toyota Camry, 2004-2007 Toyota Highlander, 2004-2006 Toyota Sienna, and 2004-2008 Toyota Solara vehicles.Denso Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement, and a first time fit. The superior design of Denso Air/Fuel Ratio Sensors maximizes engine performance and fuel efficiency while reducing fuel consumption and harmful emissions. Denso Air/Fuel Ratio Sensors increase performance by mapping air/fuel ratios throughout the RPM range. They also reduce emissions by keeping the air-fuel mixture at an optimum ratio. Optimal air/fuel ratios reduce fuel consumption and maximize catalytic converter life. Denso gives you the right part and the right fit, the first time.. Review: Perfect fit works good - Great product worked as described Review: EXACT replacement for Toyota OEM unit - OEM spec Denso O2 sensor. This is an identical OEM part, so it fit perfectly and performed as it should. Yes, it is two or three time more than some copy, but it is the exact right part, not something generic and the original lasted 20+ years. ## Features - Efficient Fuel Consumption - Fit type: Vehicle Specific ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000PWUX14 | | Best Sellers Rank | #96,456 in Automotive ( See Top 100 in Automotive ) #211 in Automotive Replacement Oxygen Sensors | | Brand | Denso | | Brand Name | Denso | | Customer Reviews | 4.5 out of 5 stars 460 Reviews | | Global Trade Identification Number | 00042511112650 | | Included Components | Air/Fuel Ratio Sensor | | Item Dimensions | 5.75 x 2.19 x 1.88 inches | | Item Type Name | Air Fuel Ratio Sensor | | Item dimensions L x W x H | 5.75 x 2.19 x 1.88 inches | | Manufacturer | Denso | | Material | Stainless Steel, Zirconium | | Material Type | Stainless Steel, Zirconium | | Measurement Accuracy | Good | | Measuring Range | 10:1 - 18:1 | | Model | 234-9042 | | Mounting Type | Thread-In | | Output Type | analog or digital | | Part Number | 234-9042 | | Specific Uses For Product | Replacement Air/Fuel Ratio Sensor | | Style | Replacement Part | | Style Name | Replacement Part | | UPC | 042511112650 | | Unit Count | 1.0 Count | | Upper Temperature Rating | 1000 Degrees Celsius | | Warranty Description | 30 Days | ## Product Details - **Brand:** Denso - **Item dimensions L x W x H:** 5.75 x 2.19 x 1.88 inches - **Material:** Stainless Steel, Zirconium - **Style:** Replacement Part - **Measurement Accuracy:** Good ## Images ![234-9042 Air Fuel Ratio Sensor - Image 1](https://m.media-amazon.com/images/I/41m7WOJ0XzL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect fit works good *by J***K on May 16, 2026* Great product worked as described ### ⭐⭐⭐⭐⭐ EXACT replacement for Toyota OEM unit *by M***G on February 17, 2024* OEM spec Denso O2 sensor. This is an identical OEM part, so it fit perfectly and performed as it should. Yes, it is two or three time more than some copy, but it is the exact right part, not something generic and the original lasted 20+ years. ### ⭐⭐⭐⭐⭐ OEM Denso! *by E***V on April 30, 2019* Awesome!! You get what you pay for. I ONLY go with OEM Denso for my sensors on my Toyotas. This was perfect for my 2005 Highlander with the V6 engine. It fit Bank 2, sensor 1 which is at the front of the exhaust manifold, directly behind the radiator. The wire was the exact length and the wire colors matched my old sensor. It even included a tube of copper anti-seize. The wire loom also came with the plastic clip that snaps into a bracket. Perfect exact oem replacement!! --- ## 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.au/products/13328065-234-9042-air-fuel-ratio-sensor](https://www.desertcart.com.au/products/13328065-234-9042-air-fuel-ratio-sensor) --- *Product available on Desertcart Australia* *Store origin: AU* *Last updated: 2026-06-23*