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2014 Subaru WRX

Oxygen Sensors

Some telltale signs that your oxygen sensor is starting to fail include the check engine light coming on, poor fuel economy, and the engine running rough. Get a replacement as soon as you confirm that your oxygen sensor is bad. The great news is that here at CarParts.com, we have an oxygen sensor replacement for every application (upstream, downstream, before/after the catalytic converter, etc.). Choose from our wide range of high-quality O2 sensors manufactured by the most reputable names in the industry.
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Before Catalytic Converter Oxygen Sensor, Hatchback, Sold individually, 4-wire, 4 Cyl 2.5L, OE Replacement Series
Part Number: BS18080
Guaranteed to Fit
$166.99
Vehicle Fitment
  • 2014 Subaru WRX Base 4 Cyl 2.5L Hatchback
  • 2014 Subaru WRX Limited 4 Cyl 2.5L Hatchback
Product Details
Location : Before Catalytic ConverterNotes : Heated Sensor TypeType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 10.63 in. Wire LengthMounting Style : Threaded-in Mounting StyleHex Size : 22 mm Hex SizeConnector Gender : Male ConnectorWarranty : 1-year Bosch limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroSeries : OE Replacement Series
Downstream Oxygen Sensor, OE manufactured part, Sold individually, 4-wire, 4 Cyl 2.5L, OE Replacement Series
Part Number: BS15028
Guaranteed to Fit
$66.99
Vehicle Fitment
  • 2014 Subaru WRX Base 4 Cyl 2.5L OE manufactured part
  • 2014 Subaru WRX Limited 4 Cyl 2.5L OE manufactured part
Product Details
Location : DownstreamType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitInterchange Part Number : 25024487Warranty : 1-year Bosch limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroSeries : OE Replacement Series
After Catalytic Converter Oxygen Sensor, Hatchback, Sold individually, 4-wire, 4 Cyl 2.5L, OE Replacement Series - After Catalytic Converter
Part Number: BS15730
Guaranteed to Fit
$50.49
Vehicle Fitment
  • 2014 Subaru WRX Base 4 Cyl 2.5L
  • 2014 Subaru WRX Limited 4 Cyl 2.5L
Product Details
Location : After Catalytic ConverterNotes : Heated Sensor TypeType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 25.6 in. Wire LengthThread Size : 18 mm Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 22 mm Hex SizeInterchange Part Number : USOS4000Connector Gender : Male ConnectorWarranty : 1-year Bosch limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroSeries : OE Replacement Series
After Catalytic Converter Oxygen Sensor, Sold individually, 4-wire, 4 Cyl 2.5L
Part Number: NG24651
Guaranteed to Fit
$99.99
Vehicle Fitment
  • 2014 Subaru WRX Base 4 Cyl 2.5L
  • 2014 Subaru WRX Limited 4 Cyl 2.5L
Product Details
Location : After Catalytic ConverterNotes : Heated Sensor TypeType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 15.75 in. Wire LengthThread Size : 18 mm Thread SizeMounting Style : Threaded-in Mounting StyleInterchange Part Number : 13441, 2349021Warranty : NGK limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

After Catalytic Converter Oxygen Sensor, Sold individually, 4-wire, 4 Cyl 2.5L - After Catalytic Converter
Part Number: NP2344195
Guaranteed to Fit
$87.49
Vehicle Fitment
  • 2014 Subaru WRX Base 4 Cyl 2.5L
  • 2014 Subaru WRX Limited 4 Cyl 2.5L
Product Details
Location : After Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 14.9 in. Wire LengthInterchange Part Number : 15028, 25024487Warranty : 1-year Denso limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Upstream Oxygen Sensor, OE sensor technology, Sold individually, 4-wire, 4 Cyl 2.5L, OE Replacement Series
Part Number: BS15253
Guaranteed to Fit
$127.49
Vehicle Fitment
  • 2014 Subaru WRX Base 4 Cyl 2.5L OE sensor technology
  • 2014 Subaru WRX Limited 4 Cyl 2.5L OE sensor technology
Product Details
Location : UpstreamType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 31.5 in. Wire LengthInterchange Part Number : 15730, SG300Warranty : 1-year Bosch limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroSeries : OE Replacement Series
After Catalytic Converter Oxygen Sensor, Hatchback, Sold individually, 4-wire, 4 Cyl 2.5L, OE Replacement Series
Part Number: BS15025
Guaranteed to Fit
$60.99
Vehicle Fitment
  • 2014 Subaru WRX Base 4 Cyl 2.5L Hatchback
  • 2014 Subaru WRX Limited 4 Cyl 2.5L Hatchback
Product Details
Location : After Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 24.6 in. Wire LengthInterchange Part Number : 2344212Warranty : 1-year Bosch limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroSeries : OE Replacement Series
Atomic, O2 Sensor Wideband
Part Number: M46A2930
Universal Fit
$145.95
Product Details
Quantity Sold : Sold individuallyProduct Fit : UniversalWarranty : 1-year MSD limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Oxygen Sensor - Universal, May Require Modification
Part Number: BS15741
Universal Fit
$48.99
Product Details
Notes : Heated Type; Metal Housing Material; Steel Color/FinishType : 4-wireQuantity Sold : Sold individuallyProduct Fit : UniversalWire Length : 27 in. Wire LengthMounting Style : Threaded-in Mounting StyleHex Size : 22 mm Hex SizeConnector Gender : Female ConnectorWarranty : 1-year Bosch limited warrantyPromotions : CarParts EuroSeries : OE Replacement Series
Oxygen Sensor, 4-wire, Universal, Needs Splicing, Walker Products Aftermarket Base Sensor
Part Number: WKP350-34200
Universal Fit
$36.49
Product Details
Notes : 9.37 in. Overall Length; Heated Sensor Type; 20 Wire Gauge MeasurementType : 4-wireQuantity Sold : Sold individuallyProduct Fit : UniversalWire Length : 5.83 in. Wire LengthThread Size : 18 mm Thread SizeMounting Style : Threaded-in Mounting StyleWarranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Walker Products Aftermarket Base Sensor
Oxygen Sensor, Sold individually, 4-wire, Walker Products Original Equipment Base Sensor
Part Number: 25024400
Universal Fit
$46.99
Product Details
Notes : 20.0 Wire Gauge Measurement; 18.0 mm Thread DiameterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : UniversalWire Length : 8.25 in. Wire LengthWarranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Walker Products Original Equipment Base Sensor
Universal, Bosch LSU 4.2 Wideband UEGO "Replacement" Sensor
Part Number: A18302001
Universal Fit
$102.95
Product Details
Type : 5-wireQuantity Sold : Sold individuallyProduct Fit : UniversalWarranty : 1-year AEM limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Universal,Bosch LSU 4.2 Wideband Sensor, Bung, Connector, Wire-Seals and Pins.
Part Number: A18302002
Universal Fit
$193.95
Product Details
Quantity Sold : Sold individuallyProduct Fit : UniversalProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Universal, Oxygen Sensor Sold individually
Part Number: H19554101
Universal Fit
$184.95
Product Details
Quantity Sold : Sold individuallyProduct Fit : UniversalWarranty : Lifetime Holley limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Specialty Part : Performance Part by JCW
Universal, Oxygen Sensor Sold individually
Part Number: H19534198
Universal Fit
$338.95
Product Details
Quantity Sold : Sold individuallyProduct Fit : UniversalWarranty : Lifetime Holley limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Specialty Part : Performance Part by JCW
Page 1 of 2 | Showing 1 - 15 of 19 results

Top Rated Products

The quality of the o2 sensor is great. I purchased a previous sensor from another comSee More
Louis S.
VERIFIED PURCHASER
fit perfect and fixed truck. awesome!! a little slow on delivery though.
Mike F.
VERIFIED PURCHASER

Shopping for Oxygen Sensor

Oxygen Sensor Shopping Info

What Is an Oxygen Sensor?

Modern vehicles are equipped with oxygen sensors, which monitor the amount of oxygen in the exhaust pipe. This part works with the engine control module to maintain your vehicle’s performance and keep its emissions in check.

How Much Does an Oxygen Sensor Replacement Cost?

Replacement oxygen sensors cost anywhere from $10 to $600 for the part alone. Factors that affect this part’s pricing include quantity, location, sensor type, and kit inclusions. Labor can cost you an additional $60 to $70, depending on where you live.

Shop for Aftermarket Oxygen Sensors on CarParts.com

Need to get an OE-grade oxygen sensor replacement fast? Here at CarParts.com, you don’t have to wait in line at a brick-and-mortar store just to get the part you need. With just a few clicks, you can get your orders delivered right to your doorstep in as fast as two business days.

Oxygen sensor replacements are typically sold individually, but you can also purchase them in sets of two or in kits that include catalytic converters. They’re also sold in a variety of inlet types and dimensions, so make sure to double-check if you’ve chosen a part with the right specifications.

With all these options and specifications to look out for, shopping for oxygen sensors can seem like an intimidating task. But with our user-friendly website, you can buy the right oxygen sensor in just a few clicks. Our products are manufactured in world-class facilities and have gone through strict tests to ensure their quality. This way, you can rest easy knowing that you’re getting high-quality products at unbeatable prices.

To view oxygen sensors and other compatible parts for your vehicle, use our vehicle selector tool and enter your vehicle’s specific year, make, and model. You can also indicate your preferences using our search filters. Buying oxygen sensors is easy and convenient here at CarParts.com. Shop now!

Helpful Automotive Resources

P0141 Code: Oxygen Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
P0141 Code: Oxygen Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)P0141 is part of a family of codes listed as follows: P0141 – Sensor Heater Circuit Bank 1 Sensor 2 P0161 – Sensor Heater Circuit Bank 2 Sensor 2 P0135 – O2 Sensor Heater Circuit Bank 1 Sensor 1 P0155 – O2 Heater Circuit Bank 2, Sensor 1 Make sure you know bank 1 from
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3When there are only 3 O2 sensors it’s typically because there’s only one catalyst being monitored, and “Bank 1” is the default designation when there’s only one sensor in a category. Diagram showing 3 oxygen sensors | Image Source: Richard McCuistian
P0135 Code: Heated O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)
P0135 Code: Heated O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)Due to this, the O2 sensor features an integrated heater circuit to bring it up to operating temperature after a cold start. When this circuit stops functioning properly, it can trigger a P0135. The oxygen sensor monitors your vehicle’s air-to-fuel ratio. What Does the P0135 Code Mean?