---
product_id: 173452342
title: "Denso 234-9042 Air Fuel Ratio Sensor"
brand: "denso"
price: "£138.04"
currency: GBP
in_stock: true
reviews_count: 5
category: "Denso"
url: https://www.desertcart.co.uk/products/173452342-denso-234-9042-air-fuel-ratio-sensor
store_origin: GB
region: United Kingdom
---

# 302mm wire length 18mm thread diameter Durable corrosion-resistant build Denso 234-9042 Air Fuel Ratio Sensor

**Brand:** denso
**Price:** £138.04
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your ride with precision that lasts – because your engine deserves the best!

## Quick Answers

- **What is this?** Denso 234-9042 Air Fuel Ratio Sensor by denso
- **How much does it cost?** £138.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/173452342-denso-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

- • **Built to Last:** Corrosion and abrasion-resistant materials guarantee longevity and reliability under harsh conditions.
- • **OEM-Grade Quality:** Exact Denso OEM spec replacement trusted for 20+ years of consistent performance.
- • **Plug & Play Installation:** Designed for hassle-free setup with standard 18mm thread and optimal 302mm wire length.
- • **Precision Oxygen Sensing:** Zirconia solid electrolyte ensures ultra-accurate air-fuel ratio detection for peak engine performance.
- • **Smart Contaminant Defense:** Porous PTFE filter blocks water and engine grime, protecting sensor integrity and accuracy.

## Overview

The Denso 234-9042 Air Fuel Ratio Sensor is a high-precision automotive sensor featuring a zirconia solid electrolyte and alumina heater substrate for accurate oxygen level detection. Built with durable, corrosion-resistant materials and a protective PTFE filter, it ensures long-lasting performance and easy installation with an 18mm thread and 302mm wire length. Trusted as an OEM-quality replacement, it delivers reliable engine efficiency and emissions control.

## Description

Denso Air and Fuel Ratio sensor is designed to detect the amount of the exhaust gas air and fuel ratio. It is constructed from durable material that is corrosion and abrasion resistant. This sensor features zirconia solid electrolyte integrated with alumina heater substrate which precicely controls the amount of oxygen concentration that flows into the diffusion layer to limit current flow. This sensor can easily be installed and ensures longevity.Porous PTFE filter allows atmospheric oxygen the enter the sensor without permitting water or engine contaminants to seep into the casing.

Review: El mejor - 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: Perfect fit works good - Great product worked as described

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Denso |
| Item dimensions L x W x H | 14.6 x 5.6 x 4.8 centimetres |
| Material | Alumina |
| Measurement accuracy | <5% |
| Measuring range | 10:1 - 18:1 |
| Style | Modern |

## Product Details

- **Brand:** Denso
- **Item dimensions L x W x H:** 14.6 x 5.6 x 4.8 centimetres
- **Material:** Alumina
- **Measurement accuracy:** <5%
- **Style:** Modern

## Images

![Denso 234-9042 Air Fuel Ratio Sensor - Image 1](https://m.media-amazon.com/images/I/41m7WOJ0XzL.jpg)
![Denso 234-9042 Air Fuel Ratio Sensor - Image 2](https://m.media-amazon.com/images/I/41SDX1m+OjL.jpg)
![Denso 234-9042 Air Fuel Ratio Sensor - Image 3](https://m.media-amazon.com/images/I/41mlBYG8--L.jpg)
![Denso 234-9042 Air Fuel Ratio Sensor - Image 4](https://m.media-amazon.com/images/I/51rkofayB9L.jpg)
![Denso 234-9042 Air Fuel Ratio Sensor - Image 5](https://m.media-amazon.com/images/I/51OJ-qitO6L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ El mejor
*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

### ⭐⭐⭐⭐⭐ Perfect fit works good
*by J***K on 16 May 2026*

Great product worked as described

### ⭐⭐⭐⭐⭐ Works great so far
*by R***. on 12 August 2024*

Works great so far, no check engine light.

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**Shop now:** [https://www.desertcart.co.uk/products/173452342-denso-234-9042-air-fuel-ratio-sensor](https://www.desertcart.co.uk/products/173452342-denso-234-9042-air-fuel-ratio-sensor)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-15*