Best Front Oxygen Sensors of 2025

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Front oxygen sensors are a crucial component of a vehicle’s emissions control system. These sensors are located in the exhaust manifold and work by monitoring the amount of oxygen in the exhaust gases. This information is then sent to the engine control module, which adjusts the air/fuel ratio to ensure optimal performance and reduce harmful emissions. Front oxygen sensors are designed to withstand high temperatures and are made from durable materials to ensure reliable performance. They are available for a wide range of vehicles and are an essential part of any vehicle’s emission control system.
At a Glance: Our Top Picks
Top 10 Front Oxygen Sensors
Oxygen Sensor for Ford, Lincoln, Mercury & Mazda
This oxygen sensor is a perfect OE standard 15716 15717 15718 match for your Ford, Lincoln, Mercury, or Mazda vehicle. It improves engine performance, fuel economy, and reduces harmful emissions, while preventing premature catalytic converter damage. Made to the highest standards, the oxygen sensor is durable and guarantees accurate data transfer to the engine management system for optimal engine operation and longevity. It is easy to install and comes with pre-coated threads.
A-Premium O2 Sensor for Honda & Acura
The A-Premium O2 Sensor is designed to fit various Honda and Acura models, ensuring compatibility with vehicles like the Accord and MDX. Its reference numbers provide a quick way to verify the right fit for your vehicle. This sensor features a heated type, which enhances performance by providing accurate readings, while its threaded mounting allows for easy installation without the need for special tools. You can trust the quality construction of this sensor, made from premium materials for durability and longevity, giving you peace of mind on the road.
Dropwater Front Oxygen Sensor
The Dropwater Front Oxygen Sensor is a compatible replacement part for Audi VW Beetle CC Jetta Golf Eos CC 2.0L models from 2014 to 2006. This high-quality sensor features a chip from a top supplier, ensuring quicker response times and reliable performance. It undergoes a 100% test before shipment, guaranteeing its functionality. With pre-coated threads, installation becomes easier. This sensor helps reduce harmful emissions, increase fuel economy, improve engine performance, and prevent premature failure of the catalytic converter. Bank 1 Sensor 1 is the upstream right/rear sensor, while Bank 2 Sensor 1 is the upstream left/front sensor. Bank 1 Sensor 2 is the downstream right/rear sensor, and Bank 2 Sensor 2 is the downstream left/front sensor. Upgrade your vehicle with the Dropwater Oxygen Sensor for enhanced performance and efficiency.
YWIM Oxygen Sensor for Toyota and Subaru
The YWIM Oxygen Sensor is an excellent replacement option for various Toyota Camry and Subaru Outback models. It directly replaces old sensors, making installation easy and hassle-free. You won’t need any modifications, as it fits perfectly in the designated spot. Additionally, this sensor is built to last, featuring a stainless steel shell and high-quality seals to withstand high temperatures. The included pre-coated threads simplify the installation process, ensuring you can quickly get your vehicle back on the road without complications. Be sure to check your vehicle’s compatibility for a smooth replacement experience.
Maxfavor Oxygen Sensor for Nissan
The Maxfavor Oxygen Sensor is designed to fit various Nissan models from 2010 to 2015, including the Altima and GT-R. This replacement sensor enhances your vehicle's engine performance and fuel efficiency, which can lead to cost savings on gas. Made from durable materials, it offers longevity and reliability. Additionally, proper installation is straightforward, with clear steps provided to ensure you can replace your old sensor easily. By maintaining the correct oxygen levels, this sensor also helps extend the life of your catalytic converter, contributing to better overall vehicle health.
ACAUTO O2 Sensor for Honda Civic
The ACAUTO O2 Sensor is designed for Honda Civic models from 2001 to 2005, ensuring a perfect fit and compatibility. This sensor replaces several OE numbers, making it easy to find the right part for your vehicle. It features high-quality materials like platinum and stainless steel, providing accurate readings and long-lasting durability. With a fast-acting heater, the sensor reaches its optimal temperature quickly, enhancing performance. Installation is straightforward, thanks to direct-fit connections and pre-coated threads, saving you time and hassle.
A-Premium O2 Sensor for Honda & Acura
The A-Premium O2 Sensor is designed for various Honda and Acura models, ensuring a perfect fit for your vehicle. It supports both upstream front and rear applications, making it versatile for different setups. With a heated sensor type and a threaded mounting style, installation is straightforward and efficient, enhancing your vehicle's performance. The sensor features a five-wire setup for reliable connectivity, ensuring accurate readings for optimal engine function. Plus, A-Premium backs this product with a one-year unlimited-mileage guarantee, giving you confidence in your purchase.
A-Premium O2 Sensor for Toyota & Lexus
The A-Premium O2 Sensor is designed to fit a wide range of Toyota, Lexus, Subaru, and Scion models, ensuring compatibility with various engines. This sensor helps optimize your vehicle's performance by accurately measuring oxygen levels, which is crucial for fuel efficiency and emissions control. With its durable construction and heated design, it provides reliable readings, even in extreme conditions. The sensor's male connector and threaded mounting type make installation straightforward, allowing you to quickly replace a faulty sensor and restore your vehicle's efficiency.
A-Premium O2 Oxygen Sensor for Saab, Saturn, Volvo
The A-Premium O2 Oxygen Sensor is compatible with Saab 9-3, 9-5 & Saturn LS2, LW2 & Volvo C30, C70, S40, S60, S70, S80, V50, V70, XC70, XC90 from 1999 to 2013, and is available in upstream and downstream front/downstream positions. With a 4-wire quantity, heated sensor type, and threaded mounting type, this oxygen sensor is a sturdy and ideal choice for direct replacement. A-Premium offers a 1-year unlimited-mileage warranty to ensure customer satisfaction.
Michigan Motorsports O2 Sensor Harness 2014+ GM
The Michigan O2 Sensor Harness is a 24-inch extension designed for upstream sensors on various 2014-2020 GM Trucks and SUVs with 5.3L and 6.2L engines. This harness ensures a perfect fit for models like the Silverado, Sierra, Escalade, and Tahoe, making installation hassle-free. It's important to check that your vehicle has the correct dark gray connector before purchasing to avoid compatibility issues. With this extension harness, you can maintain optimal engine performance and fuel efficiency by ensuring proper sensor functionality, enhancing your driving experience.
Frequently Asked Questions (FAQs)
1. What does the front O2 sensor do?
The O2 sensor lets the computer know if the fuel mix is burning rich (not enough oxygen) or lean (too much oxygen). Knowing the ratio of fuel to air allows your vehicle's engine to make any necessary changes to ensure that your car runs like it should.
2. Are downstream and upstream O2 sensors the same?
The upstream oxygen sensor is located before the catalytic converter and is used to help calculate the air fuel mixture, and is often referred to a air fuel sensor. The downstream sensor is a heated oxygen sensor and reads the emissions after the catalytic converter.
3. Is there a difference between front and rear O2 sensors?
No. The front is actually an AF sensor that measures the oxygen content in the exhaust at a faster rate than the rear O2 that monitors CAT performance.
During our front oxygen sensor research, we found 24 front oxygen sensor products and shortlisted 10 quality products. We collected and analyzed 7,313 customer reviews through our big data system to write the front oxygen sensors list. We found that most customers choose front oxygen sensors with an average price of $32.83.
The front oxygen sensors are available for purchase. We have researched hundreds of brands and picked the top brands of front oxygen sensors, including A ABIGAIL, A-Premium, Dropwater, YWIM, Maxfavor. The seller of top 1 product has received honest feedback from 2,321 consumers with an average rating of 4.8.

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.