The 10 Best Oxygen Sensors Reviews and Buying Guide

Are you experiencing one or all of the given problems with your car i.e uneasy and noisy starting, rough engine performance, lesser mileage, unburnt oxygen in exhaust etc.? Then there are high chances that the oxygen sensor of your car has got damaged.

Oxygen sensors measure the amount of oxygen present in the exhaust of your car and decide whether the fuel is burnt completely or not. Based on that they direct your engine to burn the fuel more efficiently and give you extra smooth driving experience.

So, if you are planning to buy a new oxygen sensor then you are at the right place. Stay tuned to find the advanced, more durable and best oxygen sensors at affordable rates to improve the performance of your car.

Being an automobile enthusiast and car owner myself. I assure you that once you read this article, you will be an expert to decide which oxygen sensor and what features of it suits you best.

But before we move further, focus on following TOP 3 factors to keep in mind before purchasing your oxygen sensor-

  • Choosing the brand: There are thousands of brands in this world who manufacture the oxygen sensors. So, you should always check the popularity of the brand you before choosing your sensor, so that you don’t land up buying the low-quality products sold by local unreputated brands.
  • Budget; You should be clear in mind how much money you can spend on your sensor. But don’t go for cheap ones, they will not give you good performance and more than that they are not durable also.
  • Compatibility: Not every sensor present in the market is suitable for your vehicle. Buying the wrong sensor will be the total waste of your money. They will give you a terrible performance and the emission will be out of control. Hence always check the compatibility of your sensor with the car before buying.

There are various other factors also that you need to focus while buying your oxygen sensors. We have mentioned them in our “Buying Guide”, have a read.

10 Best Oxygen Sensors

Oxygen SensorsMost Suited Car BrandsBuy Now
ACDelco Oxygen SensorGM VehiclesCheck On Amazon
Denso Oxygen SensorToyota, LexusCheck On Amazon
Abigail Oxygen SensorAston Martin, Ford, Jaguar, Lincoln Mazda, Mercury or NissanCheck On Amazon
Kax Oxygen SensorMitsubishi, Buick Lucerne, Scion TC, CheverloteCheck On Amazon
Mostplus Oxygen Sensor Mitsubishi, Jeep Wrangler, Jeep Liberty, Jeep Grand CherokeeCheck On Amazon
Bosch Oxygen Sensor-Check On Amazon
YCT Oxygen O2 SensorToyotaCheck On Amazon
A Abigail Oxygen O2 SensorAston Martin, Ford, Jaguar, Lincoln Mazda, Mercury or NissanCheck On Amazon
Yct Oxygen O2 Sensor Upstream Lexus, Scion,ToyotaCheck On Amazon
GM Genuine Heated Oxygen SensorChevrolet, Buick, GMC, or Cadillac vehicleCheck On Amazon

10 Best Oxygen Sensors Reviews

1. ACDelco AFS138 GM Original Equipment Heated Oxygen Sensor


If you are a GM vehicle owner then you should not look for something else other than ACDELCO sensors, as they are designed solely to get perfectly fit into all GM vehicles.

Founded in 1916, ACDELCO has built-up a healthy track record for itself by appearing in countless General Motor Vehicles. One of that way is through their affordable yet durable oxygen sensors.

Yes, you heard it right they are much affordable in price and offer you great value for money. With the use of ACDELCO sensors, you feel a significant improvement in the fuel economy of your car however, it may take some time for you to notice this as they are slow.

It is made up of high-grade stainless steel that improves the life of your sensor by protecting against rust and corrosion. It comes with a high-quality plastic adaptor and cable, that will not melt easily under extreme heat conditions.

Adding cherry to cake is its, easy installation and removal as many times you like. The two-year warranty you get with it removes every kind of worries that you may face with it.

Summing up, ACDELCO is a perfect buy for any GM vehicle owner in less price.

What We Liked

  • Low Cost.
  • Easy Installation.
  • 2years warranty.
  • High melting point.

What We Didn’t Liked

  • Unnecessary long wiring.
  • Bit slow to give significant results.

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2. Denso 234-4261 Oxygen Sensor

Denso 234-4261 Oxygen Sensor

Denso is a renowned Japanese auto parts manufacturing brand that builds products using high-end technologies to ensure safe and fuel-efficient performance of your vehicle. We have included this on our list as it has some incredible features.

Firstly, this sensor has a ceramic element that easily projects into your car’s exhaust system to conduct itself at high temperature. It has a double protection cover to protect the ceramic element from damage at high temperatures.

The sensor has stainless steel housing that protects it from corrosion and thereby ensures long life. Moreover, it has zirconia elements in it that improves the overall response. 

To precisely monitor the oxygen content in your vehicle, this sensor follows OE standards to ensure more tolerance.

What We Liked:

  • Easy to install.
  • Affordable.
  • Long Lasting.

What We Didn’t Liked:

  • Short wiring.

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3. Abigail 15717 Oxygen Sensor


If you use any of the given vehicles like Aston Martin, Ford, Jaguar, Lincoln Mazda, Mercury or Nissan then this ABIGAIL oxygen sensor is truly made for you.

ABIGAIL15717 sensor is thoroughly inspected at its manufacturing unit by their quality engineers and provides 100 %highly accurate data to your engine to give you efficient fuel economy and smooth engine performance.

They are proven to be highly useful when it comes to protecting the catalytic converter of your car as they reduce harmful exhaust gases.

Made up of SUSU310 material, your ABIGAIL sensor is able to withstand high temp. up to 850°C and hence does not melt under excessive heat conditions.

It carries 18.9” cable for easy installation. This further gets easy as it comes with pre-coated threads that aid you in easy installation of your sensor. To sum up, it is a good purchase as all you are getting is at a very affordable and low price.

What we liked

  • Low Cost.
  • Accurate Results.
  • Long life.
  • Easy Installation.

What We Didn’t Liked

  • Unnecessary long wiring.

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4. Kax 234-4209 Oxygen Sensor


KAX oxygen sensors are 100% exact matched OE standard oxygen sensors. Once you buy this, there are no more harmful emissions from your car and you will see the increased engine performance from your car.

KAX sensors are tested multiple times before coming into the market and provide you 100% accurate result so that your engine runs super efficiently.

Manufactured with the highest quality your KAX sensor is highly resistant to corrosion, high temp., damage etc. and keeps you worry-free of changing your sensor frequently.

You get an oxygen sensor cover that protects your sensor of abrasion and other effects during exhaust of fuel. Pre-coated threads of this sensor allow you to easily install this sensor in your car without any fatigue.

It carries 19.1” cable that easily connects to your catalytic converter. To summarize, this sensor is highly durable and comes with an affordable cost that is fully justified because of its performance.

What We Liked

  • Low Cost.
  • Accurate Results.
  • Long life.

What We Didn’t Liked

  • A bit harder to install.
  • Unnecessary long wiring.

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5. Mostplus 234-4587 O2 Oxygen Sensor

most plus

You get 2oxygen sensors with purchase of MOSTPLUS 234-4587 oxygen sensors. They are the perfect choice if you own any of the following vehicles, Mitsubishi Raider V8 4.7L, Jeep Wrangler, Jeep Liberty, Jeep Grand Cherokee.

MOSTPLUS sensors optimize the fuel emission of your car and increase the life of your catalytic converter by decreasing the harmful emissions. They also aid in saving fuel by increasing the engine efficiency of your car.

Your MOSTPLUS sensors are tested several times before shipment and are 100% accurate when it comes to determining the air-fuel ratio reaching your engine. This highly improves your engine performance.

Before installing this, please check if the sensor you are replacing has following part number, 05149171AA / 68144248AA / 56041698AA 2344587 / 5S7084 /25024253 SG1849 / NTK23159. If not then it will not be suitable for you.

They are very easy to instal, as you can install them just with the help of your wrench. They have threads on the pipe and get easily connect to your cars exhaust pipe.

In short, they are good purchase in this price range. But You might need to run your car for few miles until this sensor actually starts showing the result.

What We Liked

  • Low Cost.
  • Accurate Results.
  • Improved engine performance.
  • Easy to install.

What We Didn’t Liked

  • Codes of the previous sensor may reappear.
  • May not be suitable for driving up hills.

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6. Bosch 17025 Oxygen Sensor


HQ in Stuttgart, Germany BOSCH was founded in 1886 and is the first brand to manufacture oxygen sensors way back in 1976. Their oxygen sensors always bring quality and reliability with them.

They have advanced wideband sensing element that exactly calculates the air-fuel ratio, unlike other sensors which only sense whether the mixture is lean or rich. And give you highly optimized emission.

Engineered and manufactured with robust technology you get extra-long life with your sensor. Made of double laser-welded stainless steel, which guards them against rust and contamination, they are perfect to install in high temp. exhaust region of your car.

The ends carry nonslip coated threads that connect to exhaust pipe of your car conveniently. Also, it carries TRUE direct fit OE connectors and harness, that aid you in easy installation of your sensor.

Wrapping up, this oxygen sensor is costly in terms of price but indeed the best buy for you when it comes to value for money.

What We Liked

  • Durable built
  • Highly Accurate Results.
  • Improved engine performance.
  • Easy to install.

What We Didn’t Liked

  • Expensive to buy.

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7. YCT Oxygen O2 Sensor


Extremely affordable this sensor is a perfect buy for you if own a TOYOTA brand vehicle. But still, we recommend you to confirm your car model and the OE of the part before purchasing to avoid buying the wrong.

YCT oxygen sensors are tested thoroughly before sale to give 100% accurate results and offer you great results when it comes to reducing emission from your car.

Made with user need, they are very easy to install and are very reliable when it comes to improving engine performance. They are able to correctly replace the original sensors. Please find the part name of the original sensors below –

89465-09020, 89465-09140, 89465-09220, 89465-39735, 89465-80034, 89465-09210, 234-4162, 2344162, 24552, 24554, 234-4153, 234-4154, 234-4161, 234-4205, 234-4624, ES20070, ES20072, SG1839, SG470, SG841, 25024154, 5S4037, 5S4053, 5S4493, SU4932, SU6782.

If your current sensor has a part number other than mentioned numbers, please don’t buy it otherwise you will be wasting your money.

With this purchase you get a 1year warranty to look for any issue you face with your sensor. YCT also gives you efficient customer support and you will get a reply within 24hrs of your query mail.

With low price and reliable performance, it is a good option for you.

What We Liked

  • 1year warranty.
  • Good Customer support.
  • Highly Accurate Results.
  • Improved engine performance.
  • Easy to install.

What We Didn’t Liked

  • May not fit in all vehicles.
  • Wire is too short for downstream installation.

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8. A Abigail A27678XUpstream and Downstream Oxygen O2 Sensor 1 and Sensor 2


If your current sensors have part number 234-4078 for downstream position and 234-4076 for upstream position, then buying the A ABIGAIL sensors are perfect replacement for them.

A ABIGAIL sensors combinedly increase the life of your car’s catalytic converter, reduce harmful emissions and give you smooth driving experience by increasing the fuel economy of your car.

Made of SUS310 high temp. resistant material heated at 1562℉ during manufacturing, you get a sensor which has lifespan more than your expectations.

The sensor is enclosed in a stainless-steel housing and easily withstands all the wear and tear it faces at the exhaust manifold of your car.

This sensor maintains your engine at an ideal operating temperature and prevents it from any misfiring, overheating, and other engine problems to give you enhanced engine performance of your car.

The company also provides you, one-year warranty on your purchase of A ABIGAIL sensor, that takes care of any issue you face with your sensor.

It may sound you a little costly when compared to other brands with the same features, but the long life it carries with itself is what makes it best from others.

What We Liked

  • 1year warranty.
  • Good Customer support.
  • Long sensor life.
  • Easy to install.

What We Didn’t Liked

  • Not to fit in all vehicles.
  • Little expensive in cost.

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9. Yct Oxygen O2 Sensor Upstream


YCT 234-9041 sensor is the perfect replacement for your current sensors if you own LEXUS, SCION or TOYOTA brand cars. They are designed in such a way that they correctly replace the original sensors.

It is advised for you to buy this only if your current sensor has any of the given part numbers, else it will be a waste of your money – 234-9041, 213-2846, 2349041, 2132846, 234-9044, 2349044, 24662, ES10934, 13997, 15093.

Easy installation and high reliability are the things what you pay for while buying YCT sensors. But this is not the end, YCT sensors significantly improve your engine performance by improving the air-fuel ratio of your car.

They are known to reduce emission from your car and reduce the noise that comes while you start your car. YCT sensors are made of high-quality materials that make them sustain wear and tear they face in your cars exhaust pipe.

YCT brand considers you the reason for their growth. Hence, they provide you with a one-year warranty on your sensor. This solves any issue that may occur while you use this sensor. You get a quick reply from YCT within 24hrs of your query.

It is a costly affair to buy this YCT sensor, but easy installation, good customer support makes the price you pay justified for this sensor.

What We Liked

  • 1year warranty.
  • Good Customer support.
  • Reliable performance.
  • Easy to install.

What We Didn’t Liked

  • Not to fit in all vehicles.
  • Little expensive in cost.

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10. GM Genuine Parts AFS138 Heated Oxygen Sensor

GM Genuine Parts AFS138 Heated Oxygen Sensor

General Motors provides high quality O2 sensors, fuel injectors and other auto components that help ensure your vehicle gives optimum performance. 

This AFS138 oxygen sensor from the brand not only detects the level of oxygen in your vehicle’s exhaust but also helps regulate the emissions from your vehicle.

Using this sensor, the air and fuel ratio of your car or any other vehicle can be adjusted to maintain it at 14:7:1, which is the appropriate value for smooth performance.

This sensor has been vigorously tested by the company to meet all standards, so it perfectly suits Chevrolet, GMC or even Cadillac vehicles. Moreover, with such reliable quality, this sensor can keep a check on the oxygen level of your vehicle for 12000 miles. 

What We Liked:

  • Accurate results.
  • Easy to install.
  • Longer shelf life.
  • Good quality.

What We Didn’t Liked:

  • Nothing specific to mention.

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How To Select Best Oxygen Sensors

We have given you the list of top 10 oxygen sensors brands that you can buy. But you will always land up buying a wrong one if you don’t know what things you should keep in mind before choosing your oxygen sensor.

Keeping this problem in mind we have created the following buying guide for you that will help you in selecting the best choice for you.

1. Brand choose

Each brand we have mentioned here has its own history and track record. So, your job before buying your brand is to check the customer reviews it carries. If majority reviews are positive then that brand is good to buy.

However, we will advise you to buy the brand recommended by your vehicle manufacturer as it gives you the best performance.

2. Compatibility

Not every sensor we have mentioned in this article is compatible with your car. It depends upon your vehicle’s manufacture year, make and model. If you will buy a wrong sensor then it can damage your Catalytic converter along with causing you many other troubles.

You should seek a sensor that matches your current old sensor. Always check the part numbers provided by your brand that their sensor can replace correctly if your current sensor has the given part number then only buy that brand else it will not fit your car.

3. Budget

You should be ready to spend something between $70 to $130 to buy the best oxygen sensor for you. Obviously, the more advanced versions will cost you more, so if you are willing to pay more then go for more advanced and accurate sensors.

But whatever be the case don’t buy the cheap ones, as buying them will do more harm to you than good as it will degrade the performance of your engine and may damage your catalytic converter also.

4. Construction quality

Oxygen sensors suffer high levels of abuse in the exhaust manifold of your car. So, they should be able to withstand the harsh conditions they face in exhaust else they will get rusted and eventually break off.

Also, choose the material that has a high melting point and freezing point. A good and durable sensor is one which can travel 60000miles before you need to replace it.

Stainless steel sensors are considered as best material sensors because of the fact that they are durable and rust-resistant.

5. Accuracy

As we know sensors measure whether your engine is burning fuel completely or not. Thus, the sensors you are buying should be highly accurate and sensitive so that they measure the performance of your engine efficiently.

This will improve your driving experience and give you better fuel economy along with reducing emissions from your car.

6. Ease to use

Every product we buy we wish that they provide us comfort while using them. Such is also the case with Oxygen sensors, and that comfort here means the ease of installation.

An easy to install sensor will avoid you from paying extra installation fees at a service shop. Buy a sensor that has a convenient screw-on design or plug-and-use adapter for a quick and tight fit in the exhaust manifold. You should be yourself able to click the sensor you buy in its place.

7. Wire length

Wire length is of significant importance while buying an oxygen sensor.

If you have a short vehicle then consider buying a short wiring harness as it is convenient for installation and offers a shorter distance for transmission of signals.

On the other hand, if you have larger vehicles like a truck or other pickup vehicles then go for long wire harness.

Frequently Asked Questions

1. How Much Does O2 Sensor Cost?

Ans: You can somewhat expect to pay between 20 to 150 $ while buying an oxygen sensor for your car. Obviously, it varies as per the quality of your sensor. Some are too expensive while others are relatively cheap.
Based on the feature you want and the money you can spend, choose the one that suits you. But it’s better to keep your budget around 70$-100$.

2. What Are The Symptoms Of A Bad Oxygen Sensor?

Ans: If your current sensor has got damaged you will see the following effects –
* Starting your car gets rough.
* Engine will sound rough.
* The check engine light may also remain on.
* Mileage will decrease and your car will not run efficiently.
* You will see high unburnt emission from your car.
* Your engine performance will decrease day by day.

3. Can you clean an oxygen sensor?

Ans: Yes, it is possible to clean it and it is very easy also. You need to locate the sensor and then remove it you may use a wrench if it feels necessary.

Take a container, put the sensors in it and fill the container with gasoline such that sensors get completely dip into it. You should keep it for 6hrs and all the dirt will go away automatically.

The left-over dirt if any, may be scrubbed gently with a soft-bristled brush to clean your sensors completely.

4. Can I Drive Without An 02 Sensor?

Ans: Yes, of course, having an oxygen sensor is a boon for your car performance however it does not stop you from driving if you do not have it.
But you should also notice that not having it will definitely degrade the performance of your car over time.


Oxygen sensors are a very important auto component of your vehicle. And you should not neglect the importance of having them in your car or if you have them then replacing them with more advanced versions to get maximum efficiency out of your engine. The brands we have mentioned here are all capable of doing the things you wish for your vehicle.

But our top pick for you is Bosch 17025 Oxygen Sensor is the best-selling brand in the world of oxygen sensors. They are highly durable as they can run 60,000 miles before you need to replace them and provide you with the maximum efficient performance of all the brands we have mentioned here.

2 Responses

  1. This is very informative and interesting article and detailed buying guide for those who are interested to buying best Oxygen Sensors.
    thanks for sharing.

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