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Oxygen Sensor – Downstream

PART#: 21071

NTK

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$45.39

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In stock

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Interchanges

Brand	Part #

General Motors

12661898

Fitments

Year	Make	Model	Submodel	Engine	Fuel Type	Position	Note
2022	Chevrolet	Malibu	Premier	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2021	Chevrolet	Blazer	L	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2021	Chevrolet	Blazer	LT	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2021	Chevrolet	Malibu	Premier	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2021	GMC	Acadia	SLE	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2021	GMC	Acadia	SL	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Buick	Envision	Essence	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Buick	Envision	Base	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2020	Buick	Envision	Preferred	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Buick	Envision	Preferred	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2020	Buick	Envision	Base	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Buick	Envision	Essence	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2020	Buick	Envision	Premium II	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Buick	Envision	Premium	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Buick	Regal Sportback	Essence	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Buick	Regal Sportback	Preferred	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Buick	Regal Sportback	Base	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Buick	Regal Sportback	Avenir	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Buick	Regal TourX	Base	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Buick	Regal TourX	Essence	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Buick	Regal TourX	Preferred	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Chevrolet	Equinox	Premier	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Chevrolet	Equinox	LT	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Chevrolet	Malibu	Premier	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Chevrolet	Blazer	LT	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	Chevrolet	Blazer	L	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	GMC	Terrain	Denali	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	GMC	Terrain	SLT	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	GMC	Acadia	SLE	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2020	GMC	Acadia	SL	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Buick	Envision	Base	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2019	Buick	Envision	Preferred	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Buick	Envision	Base	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Buick	Envision	Premium II	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Buick	Envision	Essence	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2019	Buick	Envision	Premium	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Buick	Envision	Preferred	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2019	Buick	Envision	Essence	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Buick	Regal TourX	Base	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Buick	Regal TourX	Preferred	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Buick	Regal TourX	Essence	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Buick	Regal Sportback	Preferred	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Buick	Regal Sportback	Essence	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Buick	Regal Sportback	Base	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Buick	Regal Sportback	Avenir	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Buick	Regal Sportback	Preferred II	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Chevrolet	Traverse	RS	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Chevrolet	Equinox	LT	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Chevrolet	Equinox	Premier	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Chevrolet	Malibu	Premier	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Chevrolet	Impala	LS	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Chevrolet	Impala	LS	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2019	Chevrolet	Impala	LT	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Chevrolet	Impala	LT	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2019	Chevrolet	Blazer	L	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	Chevrolet	Blazer	Base	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	GMC	Acadia	SL	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	GMC	Acadia	SLE	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	GMC	Acadia	SLT	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	GMC	Terrain	SLE	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	GMC	Terrain	SLT	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2019	GMC	Terrain	Denali	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Buick	Envision	Premium	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Buick	Envision	Preferred	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Buick	Envision	Essence	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Buick	Envision	Essence	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2018	Buick	Envision	Base	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Buick	Envision	Preferred	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2018	Buick	Envision	Base	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2018	Buick	Regal TourX	Base	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Buick	Regal TourX	Essence	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Buick	Regal TourX	Preferred	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Buick	Regal Sportback	Preferred	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Buick	Regal Sportback	Essence	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Buick	Regal Sportback	Preferred II	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Buick	Regal Sportback	Base	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Chevrolet	Equinox	Premier	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Chevrolet	Equinox	LT	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Chevrolet	Impala	LS	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Chevrolet	Impala	LT	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2018	Chevrolet	Impala	LS	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2018	Chevrolet	Impala	LT	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Chevrolet	Malibu	Premier	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	Chevrolet	Traverse	RS	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	GMC	Acadia	SLT	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	GMC	Acadia	SLE	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	GMC	Acadia	SL	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	GMC	Terrain	SLT	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	GMC	Terrain	SLE	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2018	GMC	Terrain	Denali	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2017	Buick	Envision	Essence	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2017	Buick	Envision	Premium	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2017	Buick	Envision	Base	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2017	Buick	Envision	Base	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2017	Buick	Envision	Preferred	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2017	Buick	Envision	Preferred	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2017	Buick	Envision	Essence	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2017	Buick	Regal	Premium	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2017	Buick	Regal	GS	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2017	Buick	Regal	Base	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2017	Buick	Regal	Sport Touring	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2017	Chevrolet	Malibu	Premier	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2017	Chevrolet	Impala	LT	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2017	Chevrolet	Impala	LS	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2017	Chevrolet	Impala	LS	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2017	Chevrolet	Impala	LT	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2017	GMC	Acadia	SL	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2017	GMC	Acadia	SLE	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2017	GMC	Acadia	SLT	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2016	Buick	Regal	GS	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2016	Buick	Regal	Sport Touring	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2016	Buick	Regal	Premium	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2016	Buick	Regal	Base	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2016	Buick	Envision	Premium	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2016	Chevrolet	Impala	LT	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2016	Chevrolet	Impala	LT	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2016	Chevrolet	Impala	LTZ	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2016	Chevrolet	Impala	LS	2.5L4	FLEX	Downstream	B1S2; OE MFR: NTK
2016	Chevrolet	Impala	LS	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2016	Chevrolet	Impala	LTZ	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2016	Chevrolet	Malibu Limited	LT	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2016	Chevrolet	Malibu Limited	LS	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2016	Chevrolet	Malibu Limited	LTZ	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2016	Chevrolet	Malibu	LT	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2016	Chevrolet	Malibu	Premier	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2015	Buick	Regal	Premium	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2015	Buick	Regal	Base	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2015	Buick	Regal	GS	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2015	Chevrolet	Impala	LTZ	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2015	Chevrolet	Impala	LS	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2015	Chevrolet	Impala	LT	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2015	Chevrolet	Malibu	LT	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2015	Chevrolet	Malibu	LT	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2015	Chevrolet	Malibu	LS	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2015	Chevrolet	Malibu	LTZ	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2015	Chevrolet	Malibu	LTZ	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2014	Buick	Regal	Base	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2014	Buick	Regal	GS	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2014	Buick	Regal	Premium	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2014	Chevrolet	Impala	LTZ	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2014	Chevrolet	Impala	LS	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2014	Chevrolet	Impala	LT	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2014	Chevrolet	Malibu	LT	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2014	Chevrolet	Malibu	LTZ	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2014	Chevrolet	Malibu	LT	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2014	Chevrolet	Malibu	LS	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2014	Chevrolet	Malibu	LTZ	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2013	Chevrolet	Malibu	LS	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2013	Chevrolet	Malibu	LT	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2013	Chevrolet	Malibu	LTZ	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK
2013	Chevrolet	Malibu	LTZ	2.5L4	GAS	Downstream	B1S2; OE MFR: NTK
2013	Chevrolet	Malibu	LT	2.0L4	GAS	Downstream	B1S2; OE MFR: NTK

Product info

The NTK Oxygen Sensor, part number 21071, is a top-quality replacement sensor designed for your Buick, Chevrolet, or GMC vehicle. This sensor is engineered to deliver precise readings of the oxygen levels in your vehicle’s exhaust system, which are critical for ensuring proper fuel efficiency and reducing harmful emissions.

One of the key benefits of this NTK Oxygen Sensor is its accuracy. It has been designed to meet or exceed OEM specifications, meaning that it provides reliable and consistent data to your vehicle’s computer. This helps ensure that your engine is running at peak performance and that you are getting the best possible fuel efficiency.

Another important feature of this oxygen sensor is its durability. It is built to withstand the harsh conditions of your vehicle’s exhaust system, including high temperatures and exposure to corrosive gases. This means that it will last longer than cheaper, inferior sensors, ultimately saving you money in the long run.

The NTK Oxygen Sensor part number 21071 is easy to install and comes with all necessary hardware for a trouble-free installation. Once installed, it will provide your vehicle with accurate, reliable data for years to come.

If you are experiencing poor gas mileage, rough idling, or other issues with your vehicle’s performance, it may be time to replace your oxygen sensor. Trust the quality and reliability of the NTK Oxygen Sensor, part number 21071, for a better driving experience.

Specifications

California Proposition 65	WARNING/Precaución: Cancer and Reproductive Harm - Cáncer y daño al sistema reproductivo - www.P65Warnings.ca.gov
Mounting Type	Threaded
Sensor Type	Heated
Thread Diameter	18.000
Universal Or Specific Fit	Specific
Wire Quantity	4
Wiring Harness Length	14.7500

Warranty

We offer a 2-year warranty on all parts that we sell. If the part fails within 2 years of purchase, please contact us for instructions to replace it. The warranty does not cover normal wear and tear or improper installation. On many parts, we also offer Extend product protection, which is a way to add up to 3 additional years for 5 total years of worry free coverage. Select your preferred term length and you're covered!

Delivery & Returns

Delivery Info

Newparts.com is your go to store for all parts and accessories at the best price and delivered quickly. Every order we ship receives a tracking number so that you can watch it all the way until it reaches your door. We only ship using the major shipping carriers like FedEx, UPS and USPS to ensure quick and safe delivery of your new car parts order.

Returns Info

Newparts.com offers a thirty (30) day return for refund for all items purchased through Newparts.com. To qualify for return and refund, all items must be new and in their original manufacturers box. To initiate a return, please contact our customer service. This information is only a summary. Complete shipping and return policy information can be found in our web site policies.

Oxygen Sensor – Downstream

Delivery Info

Returns Info

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