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Subaru Oxygen Sensors

Driving with a faulty oxygen sensor reduces your Subaru’s fuel efficiency. Good thing you can get a top-notch replacement here at CarParts.com with just a few clicks. We carry an excellent selection of OE-quality, ready-to-ship Subaru oxygen sensors for models like the Outback, Impreza, Forester, and more. We source our products only from industry veterans to guarantee their durability and performance. Enjoy big savings by shopping from our catalog of high-quality oxygen sensors today!
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Before Catalytic Converter Oxygen Sensor, 4-Wire, 4 Cyl., 2.5L Engine
DriveWire
Before Catalytic Converter Oxygen Sensor, 4-Wire, 4 Cyl., 2.5L Engine
Part Number: REPS960913
Vehicle Info Required to Guarantee Fit
$50.99
Product Details
Location : Before Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25054027Connector Gender : Female ConnectorWarranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Returns Policy : 30-Day Return Policy
Oxygen Sensor, 4-Wire, FI, Naturally Aspirated, GAS, B1S2
DriveWire
Oxygen Sensor, 4-Wire, FI, Naturally Aspirated, GAS, B1S2
Part Number: REPS960907
Vehicle Info Required to Guarantee Fit
$20.49
Product Details
Location : After Catalytic Converter, Center, Driver Side - After Catalytic Converter, After Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 21.26 in. Wire LengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25024440Connector Gender : Male ConnectorWarranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Returns Policy : 30-Day Return Policy
Before Catalytic Converter Oxygen Sensor, 4-Wire, Heated, Air Fuel Ratio Sensor, 4 Cyl., 2.5L Engine
DriveWire
Before Catalytic Converter Oxygen Sensor, 4-Wire, Heated, Air Fuel Ratio Sensor, 4 Cyl., 2.5L Engine
Part Number: REPS960909
Vehicle Info Required to Guarantee Fit
$49.99
Product Details
Location : Before Catalytic ConverterNotes : Air/Fuel sensorType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 30.7 in. Wire LengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25054058Connector Gender : Female ConnectorWarranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Returns Policy : 30-Day Return Policy
Before Catalytic Converter Oxygen Sensor, 4-Wire, Heated, 4 Cyl., 2.5L Engine
DriveWire
Before Catalytic Converter Oxygen Sensor, 4-Wire, Heated, 4 Cyl., 2.5L Engine
Part Number: REPS960914
Vehicle Info Required to Guarantee Fit
$41.49
Product Details
Location : Before Catalytic ConverterNotes : Air/Fuel sensorType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25054061Connector Gender : Female ConnectorWarranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Returns Policy : 30-Day Return Policy
Before and After Catalytic Converter Oxygen Sensors, 2.5L Engine, 4-Wire
DriveWire
Before and After Catalytic Converter Oxygen Sensors, 2.5L Engine, 4-Wire
Part Number: SET-REPS960907-2
Vehicle Info Required to Guarantee Fit
$58.99
Product Details
Location : Before And After Catalytic ConverterComponents : (2) Oxygen SensorType : 4-wireQuantity Sold : Set of 2Product Fit : Direct FitThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeWarranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Returns Policy : 30-Day Return Policy
Before and After Catalytic Converter Oxygen Sensor, Set of 2 4-wire 4, 2.5
DriveWire
Before and After Catalytic Converter Oxygen Sensor, Set of 2 4-wire 4, 2.5
Part Number: SET-REPS960909-2
Vehicle Info Required to Guarantee Fit
$58.99
Product Details
Location : Before And After Catalytic ConverterType : 4-wireQuantity Sold : Set of 2Product Fit : Direct FitThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeWarranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Returns Policy : 30-Day Return Policy
Before and After Catalytic Converter Oxygen Sensors, 4-Wire, 4 Cylinder, 2.5L Engine
DriveWire
Before and After Catalytic Converter Oxygen Sensors, 4-Wire, 4 Cylinder, 2.5L Engine
Part Number: SET-REPS960914-2
Vehicle Info Required to Guarantee Fit
$58.49
Product Details
Location : Before And After Catalytic ConverterNotes : Air/Fuel sensorComponents : (2) Oxygen SensorsType : 4-wireQuantity Sold : Set of 2Product Fit : Direct FitThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeConnector Gender : Male and female ConnectorWarranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Returns Policy : 30-Day Return Policy
Before or After Catalytic Converter Oxygen Sensor, 4-wire
DriveWire
Before or After Catalytic Converter Oxygen Sensor, 4-wire
Part Number: REPT960906
Vehicle Info Required to Guarantee Fit
$23.49
Product Details
Location : After Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 11.8 in. Wire LengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25024487Connector Gender : Male ConnectorWarranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Returns Policy : 30-Day Return Policy
After Catalytic Converter Oxygen Sensor, 4-Wire, Heated
DriveWire
After Catalytic Converter Oxygen Sensor, 4-Wire, Heated
Part Number: RS96090003
Vehicle Info Required to Guarantee Fit
$20.99
Product Details
Location : After Catalytic ConverterNotes : HeatedType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 14.88 in. Wire LengthThread Size : 0.71 in. Thread SizeMounting Style : Threaded-in Mounting StyleReplaces OE Number : 22690AA900Interchange Part Number : 25024487, 22690AA900Connector Gender : Male ConnectorWarranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Returns Policy : 30-Day Return Policy
Before Catalytic Converter Oxygen Sensor, 4-Wire, Heated, Air Fuel Ratio Sensor
DriveWire
Before Catalytic Converter Oxygen Sensor, 4-Wire, Heated, Air Fuel Ratio Sensor
Part Number: ARBS960922
Vehicle Info Required to Guarantee Fit
$36.49
Product Details
Location : Before Catalytic ConverterNotes : Air-Fuel sensorType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 19.9 in. Wire LengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25054011Connector Gender : Female ConnectorWarranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Returns Policy : 30-Day Return Policy
Before Catalytic Converter Oxygen Sensor, 4-Wire, 4 Cyl., 2.5L, Naturally Aspirated Engine
DriveWire
Before Catalytic Converter Oxygen Sensor, 4-Wire, 4 Cyl., 2.5L, Naturally Aspirated Engine
Part Number: RS96090001
Vehicle Info Required to Guarantee Fit
$41.38
Product Details
Location : Before Catalytic ConverterNotes : Fits Naturally Aspirated EJ253 engines only. Will NOT fit Turbocharged engines.Type : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitInterchange Part Number : 25054067Warranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Returns Policy : 30-Day Return Policy
Before Catalytic Converter Oxygen Sensor, 1-Wire, Non-Heated
DriveWire
Before Catalytic Converter Oxygen Sensor, 1-Wire, Non-Heated
Part Number: ARBS960921
Vehicle Info Required to Guarantee Fit
$14.49
Product Details
Location : Before Catalytic ConverterType : 1-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 10.75 in. Wire LengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeReplaces OE Number : 1629L69, 1629O56, 1630N46, 16315O1, 16317W7, 7014L152, 7014O990, 7024N816, 70323O71, 70347W18Interchange Part Number : 25021013, 1629L69, 1629O56, 1630N46, 16315O1, 16317W7, 7014L152, 7014O990, 7024N816, 70323O71, 70347W18Connector Gender : Female ConnectorWarranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Returns Policy : 30-Day Return Policy
Before Catalytic Converter Oxygen Sensor, 4-Wire, Air/Fuel Sensor, 4 Cyl., 2.5L Engine
DriveWire
Before Catalytic Converter Oxygen Sensor, 4-Wire, Air/Fuel Sensor, 4 Cyl., 2.5L Engine
Part Number: RS31870002
Vehicle Info Required to Guarantee Fit
$47.99
Product Details
Location : Before Catalytic ConverterNotes : Air/Fuel sensorType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 10.83 in. Wire LengthInterchange Part Number : 25054064Warranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Returns Policy : 30-Day Return Policy
Before Secondary Catalytic Converter Oxygen Sensor, 4-wireAir/Fuel sensor
DriveWire
Before Secondary Catalytic Converter Oxygen Sensor, 4-wireAir/Fuel sensor
Part Number: RT31870004
Vehicle Info Required to Guarantee Fit
$40.49
Product Details
Location : Driver Side, Before Catalytic Converter, Before Secondary Catalytic Converter, Before Catalytic ConverterNotes : Air/Fuel sensorType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 9.45 in. Wire LengthInterchange Part Number : 25054008Warranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Returns Policy : 30-Day Return Policy
Before Secondary Catalytic Converter Oxygen Sensor, 4-wireAir/Fuel sensor
DriveWire
Before Secondary Catalytic Converter Oxygen Sensor, 4-wireAir/Fuel sensor
Part Number: RT31870003
Vehicle Info Required to Guarantee Fit
$44.99
Product Details
Location : Before Secondary Catalytic Converter, Before Catalytic ConverterNotes : Air/Fuel sensorType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 7.87 in. Wire LengthInterchange Part Number : 25054074Warranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Returns Policy : 30-Day Return Policy
Page 1 of 16 | Showing 1 - 15 of 230 results

Top Rated Products

DriveWire After Catalytic Converter Oxygen Sensor, 4-Wire, Heated
$20.99( Review)
Fast shipping and product worked perfectly
Roberto D.
VERIFIED PURCHASER
DriveWire Before Catalytic Converter Oxygen Sensor, 4-Wire, 4 Cyl., 2.5L Engine
$50.99( Review)
Part works solid and for a good price. Got my check engine light to shut off thankfulSee More
Michaeljohn Y.
VERIFIED PURCHASER
DriveWire Before and After Catalytic Converter Oxygen Sensors, 4-Wire, 4 Cylinder, 2.5L Engine
$58.49( Review)
Perfect fit
Tracey J.
VERIFIED PURCHASER

Product Questions & Answers

DriveWire Before Secondary Catalytic Converter Oxygen Sensor, 4-wireAir/Fuel sensor
$40.49
Q:Is this part an oxygen sensor 1 bank 1 for toyota sienna le 2005?
Misael O.
A:BEST ANSWERHi Misael, thank you for reaching out. No, it is not. This item is the upstream (sensor 1) for the rear (secondary) catalytic converter of the 2005 Toyota Sienna LE. Click this link to order the suggested upstream oxygen sensor for the primary catalytic converter of your vehicle: https://www.carparts.com/details/Toyota/Sienna/DriveWire/Oxygen_Sensor/2005/LE/6_Cyl_3-dot-3L/REPT960928.html?can=CPAP3648_CSQA_20230128 Should you also need the upstream oxygen sensor for the secondary catalytic converter, you can use this link to go back to the item page and continue the order: https://www.carparts.com/oxygen-sensor/drivewire/rt31870004?can=CPAP3648_CSQA_20230128 I hope this helps. Enjoy shopping. Show less
Aldrin P.
 
3 Questions, 1 AnswerView all Q&As >

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?