---
product_id: 125591359
title: "Downstream Oxygen O2 Sensor 234-4391 Sensor 2 Replacement for Mazda 3 2.3L 2007 2008 2009 2010 2011 2012 2013"
brand: "kwiksen"
price: "€ 44.38"
currency: EUR
in_stock: true
category: "Automotive"
url: https://www.desertcart.pt/products/125591359-downstream-oxygen-o2-sensor-234-4391-sensor-2-replacement-mazda
store_origin: PT
region: Portugal
---

# Downstream Oxygen O2 Sensor 234-4391 Sensor 2 Replacement for Mazda 3 2.3L 2007 2008 2009 2010 2011 2012 2013

**Brand:** kwiksen
**Price:** € 44.38
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Downstream Oxygen O2 Sensor 234-4391 Sensor 2 Replacement for Mazda 3 2.3L 2007 2008 2009 2010 2011 2012 2013 by kwiksen
- **How much does it cost?** € 44.38 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/125591359-downstream-oxygen-o2-sensor-234-4391-sensor-2-replacement-mazda)

## Best For

- kwiksen enthusiasts

## Why This Product

- Trusted kwiksen brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Full description not available

## Features

- COMPATIBLE WITH OEM: 234-4391
- Downstream oxygen sensor 2 for 2007-2013 Mazda 3 2.3L
- Post-cat oxygen sensor 2 for 2007-2013 Mazda 3 2.3L
- Length (Sensor to Lead): 360mm/14.2 inch. Wires: 4
- Please check the description or use the year/make/model drop down bar and interchangeable part numbers to confirm the compatibility before purchase.
- ›See more product details

## Images

![Downstream Oxygen O2 Sensor 234-4391 Sensor 2 Replacement for Mazda 3 2.3L 2007 2008 2009 2010 2011 2012 2013 - Image 1](https://images-na.ssl-images-amazon.com/images/I/71xniGh4ABL.jpg)
![Downstream Oxygen O2 Sensor 234-4391 Sensor 2 Replacement for Mazda 3 2.3L 2007 2008 2009 2010 2011 2012 2013 - Image 2](https://images-na.ssl-images-amazon.com/images/I/61MM3oxAIfL.jpg)
![Downstream Oxygen O2 Sensor 234-4391 Sensor 2 Replacement for Mazda 3 2.3L 2007 2008 2009 2010 2011 2012 2013 - Image 3](https://images-na.ssl-images-amazon.com/images/I/61mitiXo9XL.jpg)
![Downstream Oxygen O2 Sensor 234-4391 Sensor 2 Replacement for Mazda 3 2.3L 2007 2008 2009 2010 2011 2012 2013 - Image 4](https://images-na.ssl-images-amazon.com/images/I/61rDfWB3RcL.jpg)
![Downstream Oxygen O2 Sensor 234-4391 Sensor 2 Replacement for Mazda 3 2.3L 2007 2008 2009 2010 2011 2012 2013 - Image 5](https://images-na.ssl-images-amazon.com/images/I/61U0ECB5vmL.jpg)

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**Shop now:** [https://www.desertcart.pt/products/125591359-downstream-oxygen-o2-sensor-234-4391-sensor-2-replacement-mazda](https://www.desertcart.pt/products/125591359-downstream-oxygen-o2-sensor-234-4391-sensor-2-replacement-mazda)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-05-17*