---
product_id: 341678752
title: "234-9042 air fuel ratio sensor"
brand: "denso"
price: "$273.02"
currency: USD
in_stock: true
reviews_count: 5
category: "Denso"
url: https://www.desertcart.us/products/341678752-234-9042-air-fuel-ratio-sensor
store_origin: US
region: United States of America
---

# Precision air/fuel ratio 10:1-18:1 Withstands up to 1000°C Exact OE fit for Lexus & Toyota 234-9042 air fuel ratio sensor

**Brand:** denso
**Price:** $273.02
**Availability:** ✅ In Stock

## Summary

> 🔥 Tune your ride like a pro — OEM precision, zero compromises!

## Quick Answers

- **What is this?** 234-9042 air fuel ratio sensor by denso
- **How much does it cost?** $273.02 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/341678752-234-9042-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

- • **Long-Term Value:** Original Denso quality proven to last 20+ years, not a generic copy
- • **Durability Under Fire:** Zirconium stainless steel sensor endures extreme temperatures up to 1000°C
- • **OEM-Grade Reliability:** Manufactured to strict OE standards for first-time perfect fit
- • **Fuel Efficiency Booster:** Optimizes combustion to reduce fuel consumption and emissions
- • **Precision Engine Tuning:** Maps air/fuel ratios across RPM for peak performance

## Overview

The Denso 234-9042 air/fuel ratio sensor is a vehicle-specific replacement part engineered for Lexus and Toyota models from 2002 to 2011. Built with zirconium stainless steel and tested to OE standards, it delivers precise air/fuel mixture readings (10:1 to 18:1) to maximize engine performance, fuel efficiency, and reduce emissions. Designed for a perfect first-time fit, it withstands extreme temperatures up to 1000°C, ensuring long-lasting durability and optimal catalytic converter life.

## 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: 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.
Review: El sensor es original Esta a un super precio funciona muy bien con toyota Cumple con todo lo que ofrece Solo Denso para tu toyota

## Features

- Efficient Fuel Consumption
- Fit type: Vehicle Specific

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000PWUX14 |
| Brand Name | Denso |
| Country Of Origin | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (449) |
| Global Trade Identification Number | 00042511112650 |
| Included Components | Air/Fuel Ratio Sensor |
| Item Dimensions | 14.6 x 5.6 x 4.8 centimeters |
| Item Type Name | ACCESSORIES |
| Manufacturer | Denso |
| Material Type | Zirconium Stainless Steel |
| Measurement Accuracy | Good |
| Measuring Range | 10:1 - 18:1 |
| Model | 234-9042 |
| Mounting Type | Thread-In |
| Output Type | electrical signal |
| Part Number | 234-9042 |
| Smart Home Compatibility | Not Smart Home Compatible |
| Specific Uses For Product | Replacement Air/Fuel Ratio Sensor |
| Style Name | Replacement Part |
| UPC | 042511112650 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 1000 Degrees Celsius |

## Product Details

- **Brand:** Denso
- **Item dimensions L x W x H:** 14.6 x 5.6 x 4.8 centimeters
- **Material:** Zirconium Stainless Steel
- **Measurement accuracy:** Good
- **Style:** Replacement Part

## Images

![234-9042 air fuel ratio sensor - Image 1](https://m.media-amazon.com/images/I/41m7WOJ0XzL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***G on 17 February 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.

### ⭐⭐⭐⭐⭐ Review
*by S***A on 9 August 2023*

El sensor es original Esta a un super precio funciona muy bien con toyota Cumple con todo lo que ofrece Solo Denso para tu toyota

### ⭐⭐⭐⭐⭐ Review
*by R***. on 12 August 2024*

Works great so far, no check engine light.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-19*