---
product_id: 322248232
title: "Denso 234-9051 Right-Bank Upstream with 4-Wire 8.5” Option Air Fuel Ratio Oxygen Sensor"
brand: "denso"
price: "FREE"
currency: ARS
in_stock: false
reviews_count: 5
url: https://www.desertcart.com.ar/products/322248232-denso-234-9051-right-bank-upstream-with-4-wire-8
store_origin: AR
region: Argentina
---

# 12V max supply voltage Operates up to 600°C temperature Easy installation with anti-seize pre-coating Denso 234-9051 Right-Bank Upstream with 4-Wire 8.5” Option Air Fuel Ratio Oxygen Sensor

**Brand:** denso
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Upgrade your ride’s brain with precision sensing ⚡

## 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?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/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

- • **High-Heat Endurance:** Built to withstand extreme engine temps up to 600°C ensuring long-lasting performance.
- • **Plug & Play OEM Fit:** Direct replacement with pre-applied anti-seize and plastic thread protector for hassle-free install.
- • **Trusted Denso Quality:** OEM-grade sensor ranked #17 in Automotive Electrical Air & Fuel Ratio with 4.4-star rating from 500+ users.
- • **Precision Zirconium Sensor:** Engineered with zirconia solid electrolyte for ultra-accurate air-fuel ratio detection.
- • **Fuel Efficiency & Emissions Control:** Optimizes your engine’s air-fuel mix to reduce emissions and boost MPG.

## Overview

The Denso 234-9051 is a high-accuracy zirconium oxygen sensor designed for right-bank upstream placement. Operating at up to 600°C and powered by 12V, it ensures optimal air-fuel ratio detection to improve engine efficiency and reduce emissions. Featuring easy installation with anti-seize coating and a plastic thread protector, this OEM-quality sensor is a trusted, durable replacement favored by professionals and enthusiasts alike.

## Description

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

## 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 | #135,413 in Automotive (See Top 100 in Automotive) #16 in Automitive Electrical Air & Fuel Ratio |
| Brand Name | Denso |
| Customer Reviews | 4.4 4.4 out of 5 stars (518) 4.4 out of 5 stars |
| 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 | 0.25 Pounds |
| Manufacturer | Denso |
| Material Type | Zirconium |
| Maximum Supply Voltage | 12 Volts (DC) |
| Measurement Accuracy | Highly accurate |
| Measuring Range | 10.0 - 20.0 |
| Model | 234-9051 |
| Mounting Type | Layered mounting |
| Number Of Items | 1 |
| Output Type | electrical |
| Part Interchange Info | 234-9051 |
| Part Number | 234-9051 |
| Specific Uses For Product | Oxygen Sensor |
| Style Name | Modern |
| Unit Count | 1 Count |
| Upc | 042511112889 |
| 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:** 113 g
- **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 legit and works
*by  on Reviewed in Canada 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!

### ⭐⭐⭐⭐⭐ Buy Denso because it works.
*by  on Reviewed in the United States 18 September 2026*

Perfect fit, works fantastic.Don't do what I did and buy the cheap off brand parts for your toyotas. Toyota vehicles prefer Denso or Toyota parts. I bought off brand cheap 02 sensor that worked for a couple of days.Denso is worth the price because it works.

### ⭐⭐⭐⭐⭐ Fit and worked as oem should.
*by  on Reviewed in the United States 1 August 2026*

Exactly what it was supposed to be.

## Frequently Bought Together

- Denso 234-9051 Right-Bank Upstream with 4-Wire 8.5” Option Air Fuel Ratio Oxygen Sensor
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**Shop now:** [https://www.desertcart.com.ar/products/322248232-denso-234-9051-right-bank-upstream-with-4-wire-8](https://www.desertcart.com.ar/products/322248232-denso-234-9051-right-bank-upstream-with-4-wire-8)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-10-05*