---
product_id: 322248232
title: "Denso 234-9051 Right-Bank Upstream with 4-Wire 8.5” Option Air Fuel Ratio Oxygen Sensor"
brand: "denso"
price: "1409.99 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "Denso"
url: https://www.desertcart.tn/products/322248232-denso-234-9051-right-bank-upstream-with-4-wire-8
store_origin: TN
region: Tunisia
---

# zirconia solid electrolyte for precision pre-applied anti-seize for easy install 18mm thread diameter Denso 234-9051 Right-Bank Upstream with 4-Wire 8.5” Option Air Fuel Ratio Oxygen Sensor

**Brand:** denso
**Price:** 1409.99 DT
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your ride’s brain with precision you can trust! ⚙️

## Quick Answers

- **What is this?** Denso 234-9051 Right-Bank Upstream with 4-Wire 8.5” Option Air Fuel Ratio Oxygen Sensor by denso
- **How much does it cost?** 1409.99 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/322248232-denso-234-9051-right-bank-upstream-with-4-wire-8)

## 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

- • **Durable & Reliable:** Built to withstand harsh engine conditions, promising up to 14 years and 110,000 miles of service.
- • **OEM Quality Assurance:** Direct replacement part from trusted Denso, ensuring perfect fit and long-lasting performance.
- • **Cost-Effective Upgrade:** Save hundreds compared to dealership prices without compromising on quality or performance.
- • **Effortless Installation:** Comes with pre-applied anti-seize and plastic thread protector to save time and avoid damage.
- • **Precision Zirconia Sensor:** Engineered with high-grade zirconium for ultra-accurate air-fuel ratio detection.

## Overview

The Denso 234-9051 Oxygen Sensor is a high-precision, OEM-quality zirconia sensor designed for right-bank upstream air-fuel ratio monitoring. Featuring an 18mm thread diameter and a durable 4-wire 8.5” design, it ensures accurate exhaust gas readings and easy installation with pre-applied anti-seize. Trusted by professionals and enthusiasts alike, it offers long-lasting reliability and significant savings over dealership parts.

## Description

Denso 234-9051 Right-Bank Upstream with 4-Wire 8.5” Option Air Fuel Ratio Oxygen Sensor

Review: Looks to be legitimate Denso OEM AFR Sensor, great price, perfect fit... - Not a whole lot to say as this looks like it is a legitimate Denso (OEM supplier) sensor. Based on the part number, this should have been a direct replacement for the sensor that had gone bad in my car, and it was. It was a little difficult taking the old one out due to the very limited space in the engine bay, but the install was relatively easy. Just be very careful not to touch the probe end or to bang it on anything, and be VERY careful not to cross-thread it. I was happy that it shipped with a plastic thread protector and the threads were pre-coated with anti-seize (a good thing, because I forgot to buy some beforehand, and once I took the old one out it was a little to late to run to the auto parts store and buy it). Overall, the replacement stopped the ECU from throwing the codes and causing the CEL. It also looks to be good OEM-like quality. I've put 500-600 miles on since the replacement and haven't had any issues. Let's hope this one lasts 14 years and 110,000 miles like the first one.
Review: Looks legit and works - Driver side upstream sensor went bad on my 07 gx470 so I managed to track down the part number and narrowed it down to this OEM part. Dealership wanted over $400 CAD for the part so there's massive savings to be had. Part came in a legit looking box and anti-seize pre applied. Car runs with no issues now so I highly recommend it!

## Features

- Manufactured to detect the amount of exhaust gas air fuel ratio.Material:Zirconium
- Constructed from durable material
- Features zirconia solid electrolyte
- Highly accurate; Thread Diameter: 18mm
- Easy installation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0018JUJ9O |
| Best Sellers Rank | #115,822 in Automotive ( See Top 100 in Automotive ) #11 in Automitive Electrical Air & Fuel Ratio |
| Brand | Denso |
| Brand Name | Denso |
| Customer Reviews | 4.4 out of 5 stars 515 Reviews |
| Global Trade Identification Number | 00042511112889 |
| Included Components | Oxygen Sensor |
| Item Dimensions | 14.6 x 5.6 x 4.8 centimeters |
| Item Type Name | Oxygen Sensor |
| Item Weight | 113 g |
| Item dimensions L x W x H | 14.6 x 5.6 x 4.8 centimeters |
| Item weight | 113 g |
| Manufacturer | Denso |
| Material | Zirconium |
| Material Type | Zirconium |
| Maximum Supply Voltage | 12 Volts (DC) |
| Maximum supply voltage | 12 Volts (DC) |
| Measurement Accuracy | Highly accurate |
| Measuring Range | 10.0 - 20.0 |
| Model | 234-9051 |
| Mounting Type | Layered mounting |
| Output Type | electrical |
| Part Interchange Info | 234-9051 |
| Part Number | 234-9051 |
| Specific Uses For Product | Oxygen Sensor |
| Style | Modern |
| Style Name | Modern |
| UPC | 042511112889 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 600 Degrees Celsius |

## Product Details

- **Brand:** Denso
- **Item dimensions L x W x H:** 14.6 x 5.6 x 4.8 centimeters
- **Item weight:** 0.25 Pounds
- **Material:** Zirconium
- **Style:** Modern

## Images

![Denso 234-9051 Right-Bank Upstream with 4-Wire 8.5” Option Air Fuel Ratio Oxygen Sensor - Image 1](https://m.media-amazon.com/images/I/71h6HzYy4HL.jpg)
![Denso 234-9051 Right-Bank Upstream with 4-Wire 8.5” Option Air Fuel Ratio Oxygen Sensor - Image 2](https://m.media-amazon.com/images/I/51DMNcCYOsL.jpg)
![Denso 234-9051 Right-Bank Upstream with 4-Wire 8.5” Option Air Fuel Ratio Oxygen Sensor - Image 3](https://m.media-amazon.com/images/I/51Gs+mLvdWL.jpg)
![Denso 234-9051 Right-Bank Upstream with 4-Wire 8.5” Option Air Fuel Ratio Oxygen Sensor - Image 4](https://m.media-amazon.com/images/I/41wHSKrZZvL.jpg)
![Denso 234-9051 Right-Bank Upstream with 4-Wire 8.5” Option Air Fuel Ratio Oxygen Sensor - Image 5](https://m.media-amazon.com/images/I/412FcijsV1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Looks to be legitimate Denso OEM AFR Sensor, great price, perfect fit...
*by C***P on 9 March 2022*

Not a whole lot to say as this looks like it is a legitimate Denso (OEM supplier) sensor. Based on the part number, this should have been a direct replacement for the sensor that had gone bad in my car, and it was. It was a little difficult taking the old one out due to the very limited space in the engine bay, but the install was relatively easy. Just be very careful not to touch the probe end or to bang it on anything, and be VERY careful not to cross-thread it. I was happy that it shipped with a plastic thread protector and the threads were pre-coated with anti-seize (a good thing, because I forgot to buy some beforehand, and once I took the old one out it was a little to late to run to the auto parts store and buy it). Overall, the replacement stopped the ECU from throwing the codes and causing the CEL. It also looks to be good OEM-like quality. I've put 500-600 miles on since the replacement and haven't had any issues. Let's hope this one lasts 14 years and 110,000 miles like the first one.

### ⭐⭐⭐⭐⭐ Looks legit and works
*by L***. on 5 July 2023*

Driver side upstream sensor went bad on my 07 gx470 so I managed to track down the part number and narrowed it down to this OEM part. Dealership wanted over $400 CAD for the part so there's massive savings to be had. Part came in a legit looking box and anti-seize pre applied. Car runs with no issues now so I highly recommend it!

### ⭐⭐⭐⭐⭐ As advertised
*by M***L on 2 June 2026*

Direct OEM replacement for my 2007 Toyota Tundra. Hopefully last a long time.

## Frequently Bought Together

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-06-11*