FREE SHIPPING
On Orders Over $99
Customer Service

Select Your Vehicle

Take An Additional 15% Off Brakes and Rotors* Using Code: BRAKESAVE15

Questions?

Our USA based
parts pros can help.

Click Here

Industry Leading Warranty

Click to learn more

Community

Oxygen Sensor

Oxygen Sensor

arrow To find your Oxygen Sensor choose your Year, Make and Model first.
Oxygen Sensor

Oxygen Sensor

The Oxygen Sensor is an electronic device that is used to measure the amount of oxygen present in the gas or liquid. It is part of your car's emission system and determines the amount of fuel to be delivered to the engine. The main purpose of the oxygen sensor is to help your car's engine run efficiently and produce fewer emissions. It is located in the exhaust manifold and has two ends. One end finds the unburned fuel level and the other end is connected to wiring that passes the information to the fuel control unit.

Based on the sensor readings, the Engine Control Unit (ECU) ensures that the engine is given the right amount of fuel. It adjusts the fuel supply amount only if the fuel level is too rich or too lean. If your car's oxygen sensor is not functioning properly, you must replace it as soon as possible to avoid further damage. At Buy Auto Parts we stock a wide range of oxygen sensors for all car makes and models.

Our OEM replacements and premium aftermarket parts are available at affordable prices. All our oxygen sensors have been tested thoroughly and come with a warranty. You will view the parts that fit your vehicle by selecting the right year, make and model of your car from our online catalog. We provide free shipping on all purchases above US $99. If you have any questions regarding your car parts, call our toll-free support line at 1-888-907-7225 or email us at [email protected].

Related Resources

Oxygen Sensor Replacement
This article in our how-to section will guide you in installing your oxygen sensors. The process is simple but if it is the first time you are doing it, this article is very helpful.

Location of the Oxygen Sensor and Its bank
Need to know how to determine the location of the oxygen sensor? This article will provide the answer you need for this question.

Oxygen or Air Fuel Ratio Sensor
Are oxygen sensors and air-fuel ratio sensors the same? Read this article to learn the differences in the functions of these two parts.

Oxygen Sensor Life Expectancy
All auto parts are bound to fail over time. This page tells you how long an oxygen sensor lasts on average.

Learn About Oxygen Sensor Replacement Cost
How much does an oxygen sensor cost? How much is the labor cost for replacing an oxygen sensor? Take a look at this link to find the answers to these questions.