---
product_id: 18281064
title: "Denso-234-4509 O2 Oxygen Sensor"
brand: "denso"
price: "$702925"
currency: COP
in_stock: true
reviews_count: 12
category: "Denso"
url: https://www.desertcart.co/products/18281064-denso-234-4509-o2-oxygen-sensor
store_origin: CO
region: Colombia
---

# Optimizes Fuel Efficiency Universal Fit for seamless install Durable multi-layer protection Denso-234-4509 O2 Oxygen Sensor

**Brand:** denso
**Price:** $702925
**Availability:** ✅ In Stock

## Summary

> 🛠️ Upgrade your ride with precision – never miss a beat on the road!

## Quick Answers

- **What is this?** Denso-234-4509 O2 Oxygen Sensor by denso
- **How much does it cost?** $702925 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/18281064-denso-234-4509-o2-oxygen-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

- • **Fuel Efficiency Booster:** Accurately detects oxygen levels to optimize combustion and reduce fuel waste.
- • **Universal Fit Compatibility:** Designed to fit a wide range of vehicles, making upgrades effortless and reliable.
- • **Advanced Multi-Layer Protection:** Double protection layers with aluminum oxide trap and PTFE filter ensure long-lasting durability.
- • **Precision OE Standard Engineering:** Engineered to meet exact original equipment specs for flawless performance.
- • **Easy Installation with Anti-Seize Compound:** Comes ready with anti-seize for hassle-free replacement and secure mounting.

## Overview

The Denso-234-4509 Oxygen Sensor is a high-quality, universal-fit replacement part crafted from premium stainless steel and advanced materials. Designed to precisely monitor oxygen levels in your vehicle’s exhaust, it ensures optimal fuel efficiency and engine performance. Featuring multi-layer protection and easy installation with anti-seize compound, this sensor meets OE standards for durability and reliability, making it a trusted choice for professional-grade automotive maintenance.

## Description

Denso Oxygen Sensor is designed to detect the amount of oxygen in the exhaust stream. It is constructed from high quality stainless steel, porous polytetrafluoroethylene, fluorine rubber, aluminum oxide, high-grade platinum and ceramics. This Sensor features double protection layer, aluminum oxide trap layer, porous PTFE filter and stainless steel housing. It is manufactured with precision to meet OE standards. This oxygen sensor can be installed easily and ensures longevity.

Review: Fixed the 2007 Lexus RX350. - Resolved the computer code and Service Engine Light. Pretty easy to replace with just metric ratchet set, metric wrench and mallet. Hardest part was getting the old one off. Tried PB Blaster, but not sure that helped. Tried running the engine for awhile to get it nice and hot (be careful under there when it is hot, easy to get a nasty burn). I think the heat may have helped along with a mallet to pound on the wrench handle. Either that or just persistence. Comes with a bit of anti-seize compound. All the attachment clips fit exactly which is great because these are always a bear to get off without breaking. In this case can just cut and grab without having to try and save them. Highly recommended to fix this sensor code.
Review: Oxygen Sensor downstream - Exact fit for 2004 lexus rx330. Fixed check engine light issues.

## Features

- Fit type: Universal Fit
- Efficient Fuel Consumption
- Constructed from high quality material
- Designed to detect the amount of oxygen in the exhaust system

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0018JVJB6 |
| Best Sellers Rank | #578,233 in Automotive ( See Top 100 in Automotive ) #303,490 in Automotive Replacement Parts |
| Brand | Denso |
| Customer Reviews | 4.6 4.6 out of 5 stars (290) |
| Date First Available | January 2, 2007 |
| Exterior | Machined |
| Global Trade Identification Number | 00042511112728 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4 ounces |
| Item dimensions L x W x H | 5.75 x 3.88 x 2.19 inches |
| Item model number | 234-4509 |
| Manufacturer | DENSO |
| Manufacturer Part Number | 234-4509 |
| Material | Stainless Steel, Zirconium |
| Model | Oxygen Sensor |
| Mounting Type | Thread-In |
| Output Type | Push-Pull |
| Product Dimensions | 5.75 x 3.88 x 2.19 inches |
| Specific Uses For Product | Replacement Oxygen (O2) Sensor |
| Style | Replacement Part |
| UPC | 042511112728 |

## Product Details

- **Brand:** Denso
- **Item Weight:** 0.25 Pounds
- **Item dimensions L x W x H:** 5.75 x 3.88 x 2.19 inches
- **Material:** Stainless Steel, Zirconium
- **Style:** Replacement Part

## Images

![Denso-234-4509 O2 Oxygen Sensor - Image 1](https://m.media-amazon.com/images/I/51hKYkf6-rL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fixed the 2007 Lexus RX350.
*by I***R on September 30, 2017*

Resolved the computer code and Service Engine Light. Pretty easy to replace with just metric ratchet set, metric wrench and mallet. Hardest part was getting the old one off. Tried PB Blaster, but not sure that helped. Tried running the engine for awhile to get it nice and hot (be careful under there when it is hot, easy to get a nasty burn). I think the heat may have helped along with a mallet to pound on the wrench handle. Either that or just persistence. Comes with a bit of anti-seize compound. All the attachment clips fit exactly which is great because these are always a bear to get off without breaking. In this case can just cut and grab without having to try and save them. Highly recommended to fix this sensor code.

### ⭐⭐⭐⭐⭐ Oxygen Sensor downstream
*by H***O on July 21, 2025*

Exact fit for 2004 lexus rx330. Fixed check engine light issues.

### ⭐⭐⭐⭐⭐ Replaced in 20 minutes, using simple tools.
*by C***. on October 9, 2016*

This was a direct replacement for the oxygen sensor on my 2007 Lexus RX350, Canadian built SUV. Note that this part is for bank 1, sensor 2. The sensor is located under the vehicle, aft (downstream) of the cat converter, in the exhaust pipe, closest to the driver's side. Denso (brand) are the same folks that supply many of original Lexus factory parts for this vehicle. It is a perfect match, right down to the wire length and clip fastener spacing! Easy to replace! Once under the vehicle it takes 20 minutes, including the time for the spray rust penetrant (Pb Blaster) to make removal a breeze. Tools you will need: - Jack and jack stands, unless you are skinny! NEVER go under a vehicle supported by a jack alone! - 7/8 open-end wrench (Save your money and don't buy the special oxygen sensor tool. I bought it and didn't use it) - Flat blade screwdriver to pry out clips securing cable. (Cable comes with new clips, so don't worry) - Eye protection. - Wire cutter (Optional, but snipping the old wires close to the sensor makes removal more pleasant) - Spray rust penetrater in a can. (I like Pb Blaster) - Vehicle computer code reader/reset tool (I own one, but many of the auto part chain stores will reset free of any charge) Normal thread (righty, tight - lefty, loose). Snug-up, but don't be a gorilla. 35 foot pounds, if you really want to put a torque wrench to it. Make sure the car is at ambient temperature. This is important for easy removal. The dealership quoted $400-$500 for this repair. I did for under $100. If you can change your tire, this is only slightly more difficult. No more check engine light or poor gas mileage. The part is working very well for me. I hope it does for you as well!

## Frequently Bought Together

- Denso 234-4509 Heated 4-Wire Oxygen Sensor with 25.5” Harness for 2004-2016 Lexus/Toyota V6 Right-Bank Downstream
- Denso 234-4168 Downstream Oxygen Sensor with 4-Wire 13.7” Harness
- Denso 234-9042 Air Fuel Ratio Sensor

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*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-02-28*