---
product_id: 173452348
title: "Denso Air/Fuel Ratio Sensor - 234-9051 (Fits Select Years of Toyota: 4Runner/FJ Cruiser/Land Cruiser/Sequoia/Tacoma/Tundra and Lexus GS300/GS350/GS450h/GX470/IS250/IS350/LS460/LS600h/LX470 Vehicles)"
brand: "denso"
price: "฿18337"
currency: THB
in_stock: true
reviews_count: 5
category: "Denso"
url: https://www.desertcart.co.th/products/173452348-denso-air-fuel-ratio-sensor-234-9051-fits-select-years
store_origin: TH
region: Thailand
---

# Fast-response zirconia sensor Optimizes fuel efficiency Exact OE fit & easy install Denso Air/Fuel Ratio Sensor - 234-9051 (Fits Select Years of Toyota: 4Runner/FJ Cruiser/Land Cruiser/Sequoia/Tacoma/Tundra and Lexus GS300/GS350/GS450h/GX470/IS250/IS350/LS460/LS600h/LX470 Vehicles)

**Brand:** denso
**Price:** ฿18337
**Availability:** ✅ In Stock

## Summary

> 🚗 Upgrade your ride with precision sensing — because your engine deserves the best!

## Quick Answers

- **What is this?** Denso Air/Fuel Ratio Sensor - 234-9051 (Fits Select Years of Toyota: 4Runner/FJ Cruiser/Land Cruiser/Sequoia/Tacoma/Tundra and Lexus GS300/GS350/GS450h/GX470/IS250/IS350/LS460/LS600h/LX470 Vehicles) by denso
- **How much does it cost?** ฿18337 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/173452348-denso-air-fuel-ratio-sensor-234-9051-fits-select-years)

## 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

- • **OEM-Grade Quality:** Factory-tested for first-time fit and reliable engine performance
- • **Wide Compatibility:** Fits 2005-2013 Toyota & Lexus models for seamless replacement
- • **Rapid Oxygen Detection:** Planar zirconia element delivers lightning-fast air/fuel ratio readings
- • **Fuel Efficiency Booster:** Maintains optimal air/fuel mix to reduce consumption and emissions
- • **Precision Platinum Electrodes:** Tarnish-proof for longer sensor life and consistent accuracy

## Overview

The Denso 234-9051 Air/Fuel Ratio Sensor is a high-precision, OEM-quality replacement part designed for select Toyota and Lexus models (2005-2013). Featuring tarnish-proof platinum electrodes and a fast-response planar zirconia element, it ensures accurate oxygen detection to optimize fuel efficiency, reduce emissions, and enhance engine performance. With an exact fit and pre-applied anti-seize threads, installation is straightforward, making it the smart choice for professional-grade vehicle maintenance.

## Description

Denso part number 234-9051 is a replacement air/fuel ratio sensor for 2005-2009 Toyota 4Runner, 2007 Toyota FJ Cruiser, 2005-2007 Toyota Land Cruiser, 2005-2007 Toyota Sequoia, 2005-2006 Toyota Tacoma, 2005-2007 Toyota Tundra, 2006 Lexus GS300, 2007-2008 Lexus GS350, 2007-2011 Lexus GS450h, 2005-2009 Lexus GX470, 2006-2008 Lexus IS250, 2006-2008 Lexus IS350, 2009-2013 Lexus LS460, 2008-2012 Lexus LS600h, and 2005-2007 Lexus LX470 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: 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

- Denso wide-band Air/Fuel Ratio Sensor with 4 wire 8.66 inch long wiring harness
- Part Number: 234-9051
- Application: Toyota: (2005-2009 4Runner, 2007 FJ Cruiser, 2005-2007 Land Cruiser, 2005-2007 Sequoia, 2005-2006 Tacoma, 2005-2007 Tundra) / Lexus: (2006 GS300, 2007-2008 GS350, 2007-2011 GS450h, 2005-2009 GX470, 2006-2008 IS250, 2006-2008 IS350, 2009-2013 LS460, 2008-2012 LS600h, 2005-2007 LX470)
- Parts Interchange: 894670C010, 8946750030, 8946750040, 8946771020, 8946704020, 8946760020, 8946730010
- Tarnish-proof platinum electrodes provides longer life and maintains accuracy
- Quick-response planar zirconia element can quickly detect oxygen concentration
- Measures Air/Fuel ratios from approximately 12:1 to 19:1
- Package Quantity: 1
- Item Dimensions: 5.75 x 2.19 x 1.88 Inches
- Item Weight: 0.25 Pounds

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0018JUJ9O |
| Best Sellers Rank | 788,553 in Automotive ( See Top 100 in Automotive ) 2,265 in Car Oxygen Sensors |
| Brand | Denso |
| Customer Reviews | 4.2 4.2 out of 5 stars (502) |
| Date First Available | 11 Aug. 2012 |
| 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 centimetres
- **Item weight:** 113 g
- **Material:** Zirconium Stainless Steel
- **Style:** Replacement Part

## Images

![Denso Air/Fuel Ratio Sensor - 234-9051 (Fits Select Years of Toyota: 4Runner/FJ Cruiser/Land Cruiser/Sequoia/Tacoma/Tundra and Lexus GS300/GS350/GS450h/GX470/IS250/IS350/LS460/LS600h/LX470 Vehicles) - Image 1](https://m.media-amazon.com/images/I/71h6HzYy4HL.jpg)
![Denso Air/Fuel Ratio Sensor - 234-9051 (Fits Select Years of Toyota: 4Runner/FJ Cruiser/Land Cruiser/Sequoia/Tacoma/Tundra and Lexus GS300/GS350/GS450h/GX470/IS250/IS350/LS460/LS600h/LX470 Vehicles) - Image 2](https://m.media-amazon.com/images/I/51DMNcCYOsL.jpg)
![Denso Air/Fuel Ratio Sensor - 234-9051 (Fits Select Years of Toyota: 4Runner/FJ Cruiser/Land Cruiser/Sequoia/Tacoma/Tundra and Lexus GS300/GS350/GS450h/GX470/IS250/IS350/LS460/LS600h/LX470 Vehicles) - Image 3](https://m.media-amazon.com/images/I/51Gs+mLvdWL.jpg)
![Denso Air/Fuel Ratio Sensor - 234-9051 (Fits Select Years of Toyota: 4Runner/FJ Cruiser/Land Cruiser/Sequoia/Tacoma/Tundra and Lexus GS300/GS350/GS450h/GX470/IS250/IS350/LS460/LS600h/LX470 Vehicles) - Image 4](https://m.media-amazon.com/images/I/41wHSKrZZvL.jpg)
![Denso Air/Fuel Ratio Sensor - 234-9051 (Fits Select Years of Toyota: 4Runner/FJ Cruiser/Land Cruiser/Sequoia/Tacoma/Tundra and Lexus GS300/GS350/GS450h/GX470/IS250/IS350/LS460/LS600h/LX470 Vehicles) - Image 5](https://m.media-amazon.com/images/I/412FcijsV1L.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 Thailand*
*Store origin: TH*
*Last updated: 2026-03-07*