---
product_id: 322248232
title: "Denso 234-9051 Right-Bank Upstream with 4-Wire 8.5” Option Air Fuel Ratio Oxygen Sensor"
brand: "denso"
price: "8066015₫"
currency: VND
in_stock: true
reviews_count: 5
category: "Denso"
url: https://www.desertcart.vn/products/322248232-denso-234-9051-right-bank-upstream-with-4-wire-8
store_origin: VN
region: Vietnam
---

# 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:** 8066015₫
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your ride’s brain with precision that lasts! ⚙️

## 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?** 8066015₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/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

- • **Proven Reliability:** Trusted by thousands with 500+ miles of flawless performance post-install.
- • **OEM-Grade Durability:** Built to last with high-quality materials trusted by Toyota and Lexus.
- • **Effortless Installation:** Comes with pre-applied anti-seize and thread protector to save you time and hassle.
- • **Cost-Effective Replacement:** Avoid dealership markups and get genuine quality at a fraction of the price.
- • **Precision Air-Fuel Ratio Detection:** Engineered with zirconium for ultra-accurate exhaust gas readings.

## Overview

The Denso 234-9051 Oxygen Sensor is a high-precision, OEM-quality air-fuel ratio sensor featuring a durable zirconia solid electrolyte and an 18mm thread diameter. Designed for easy installation with pre-applied anti-seize and thread protection, it offers a cost-effective, reliable replacement trusted by Toyota and Lexus owners to keep engine performance optimized and check engine lights at bay.

## Description

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

Review: 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: 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 | #97,389 in Automotive ( See Top 100 in Automotive ) #10 in Automitive Electrical Air & Fuel Ratio |
| Brand | Denso |
| Customer Reviews | 4.2 4.2 out of 5 stars (502) |
| Date First Available | 11 August 2012 |
| Exterior | Machined |
| Item Weight | 113 g |
| Item model number | 234-9051 |
| Manufacturer | Denso |
| Manufacturer Part Number | 234-9051 |
| Model | Oxygen Sensor |
| OEM Part Number | 15-988 Bosch, 89467-0C010 Toyota/Lexus, NAPA 234-9051 |
| Product Dimensions | 14.61 x 5.56 x 4.78 cm; 113.4 g |

## 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/412FcijsV1L.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/41wHSKrZZvL.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/51DMNcCYOsL.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/51Gs+mLvdWL.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/51OJ-qitO6L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*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.

### ⭐⭐⭐⭐⭐ Review
*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!

### ⭐⭐⭐⭐⭐ Review
*by P***T on 25 January 2023*

Working like it is supposed to. No more check engine light!!

## Frequently Bought Together

- Denso 234-9051 Right-Bank Upstream with 4-Wire 8.5” Option Air Fuel Ratio Oxygen Sensor
- Denso 234-4261 Oxygen Sensor with 4-Wire 10” Harness for Lexus/Toyota V-6 Downstream Left/Front

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-12*