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Mazda Oxygen Sensors

The oxygen sensor regulates the air-to-gas ratio inside your engine. When it’s faulty, your Mazda will have poor gas mileage and emit harmful odors and toxins. If you’re looking for a high-quality oxygen sensor replacement at a reasonable price, you’ve come to the right place! CarParts.com has a wide range of oxygen sensors designed to provide reliable feedback to your Mazda’s control system. Check out our deals on oxygen sensors for the Mazda 3, Mazda 6, MPV, and many others!
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Oxygen Sensor, 4-Wire, Heated
DriveWire
Oxygen Sensor, 4-Wire, Heated
Part Number: REPF960904
Vehicle Info Required to Guarantee Fit
$19.99
Product Details
Location : Center, Passenger Side - Before Catalytic Converter, After Catalytic Converter, Driver Side - Before Catalytic Converter, Before Catalytic Converter, Passenger Side - After Catalytic Converter, After Catalytic Converter, Center, Driver Side - Before Catalytic Converter, After Catalytic Converter, After Secondary Catalytic Converter, Before Catalytic Converter, Before Catalytic Converter, Driver Side - After Catalytic Converter, After Primary Catalytic Converter, Before Catalytic Converter, Driver Side - After Catalytic Converter, After Catalytic Converter, Before Or After Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 15.75 in. Wire LengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25024001Connector 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 and After Catalytic Converter Oxygen Sensors, 4-wire
DriveWire
Before and After Catalytic Converter Oxygen Sensors, 4-wire
Part Number: SET-REPF960904-2
Vehicle Info Required to Guarantee Fit
$39.99
Product Details
Location : Center, After Catalytic Converter, Front And Rear, After Catalytic Converter, Center, After Catalytic Converter, Rear, Before And After Secondary Catalytic Converter, Before Catalytic Converter, After Primary Catalytic Converter, Before And After Catalytic Converter, Before And After Catalytic Converter, Passenger Side, After Catalytic ConverterComponents : (2) Oxygen SensorsType : 4-wireQuantity Sold : Set of 2Product Fit : Direct FitWire Length : 15.75 in. Wire LengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeConnector 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, 5-Wire, Wideband Sensor
DriveWire
Before Catalytic Converter, Oxygen Sensor, 5-Wire, Wideband Sensor
Part Number: REPA960912
Vehicle Info Required to Guarantee Fit
$56.49
Product Details
Location : Driver Side, Before Catalytic Converter, Before Primary Catalytic Converter, Before Secondary Catalytic Converter, Before Catalytic Converter, Before Catalytic Converter, Manifold, Passenger Side, Before Catalytic Converter, After Catalytic ConverterNotes : Wideband sensorType : 5-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 : 25025049Connector 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
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
$19.99
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 or After Catalytic Converter, Driver or Passenger Side Oxygen Sensor, 4-Wire, Heated
DriveWire
Before or After Catalytic Converter, Driver or Passenger Side Oxygen Sensor, 4-Wire, Heated
Part Number: REPF960902
Vehicle Info Required to Guarantee Fit
$27.99
Product Details
Location : Driver Side, Before Catalytic Converter, Passenger Side - Before Catalytic Converter, Before Catalytic Converter, After Catalytic Converter, Driver Side - Before Catalytic Converter, Before Or After 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 : 25024701Connector 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 Sensors, 4-wire, Rear Wheel Drive
DriveWire
Before Catalytic Converter Oxygen Sensors, 4-wire, Rear Wheel Drive
Part Number: SET-REPF960902-2
Vehicle Info Required to Guarantee Fit
$52.99
Product Details
Location : Before Catalytic Converter, Before And After Catalytic Converter, After Catalytic ConverterComponents : (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 SizeInterchange Part Number : 25024701Connector 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 and After Catalytic Converter Oxygen Sensor, Set of 4 4-wire
DriveWire
Before and After Catalytic Converter Oxygen Sensor, Set of 4 4-wire
Part Number: SET-REPF960902-4
Vehicle Info Required to Guarantee Fit
$106.49
Product Details
Location : Before And After Catalytic ConverterComponents : (4) Oxygen SensorsType : 4-wireQuantity Sold : Set of 4Product Fit : Direct FitThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25024701Connector 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
Oxygen Sensor, 4-Wire, Heated
DriveWire
Oxygen Sensor, 4-Wire, Heated
Part Number: REPF960911
Vehicle Info Required to Guarantee Fit
$21.99
Product Details
Location : After Primary Or Secondary Catalytic Converter, Passenger Side - After Catalytic Converter, After Secondary Catalytic Converter, After Primary Catalytic Converter, After 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 : 25024983Connector 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, Heated
DriveWire
Oxygen Sensor, 4-Wire, Heated
Part Number: REPF960907
Vehicle Info Required to Guarantee Fit
$17.99
Product Details
Location : Before Primary Catalytic Converter, Before Secondary Catalytic Converter, Before Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 11 in. Wire LengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25024749Connector 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 Sensors, 4-wire
DriveWire
Before Catalytic Converter Oxygen Sensors, 4-wire
Part Number: SET-REPF960907-2
Vehicle Info Required to Guarantee Fit
$33.99
Product Details
Location : Before Catalytic Converter, Rear, Before Catalytic Converter, Driver And Passenger Side, Before Catalytic Converter, Front And Rear, Before Catalytic Converter, After Catalytic Converter, Before Catalytic Converter, Front, After Catalytic Converter, FrontComponents : (2) Oxygen SensorsType : 4-wireQuantity Sold : Set of 2Product Fit : Direct FitWire Length : 11 in. Wire LengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25024749Connector 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
Oxygen Sensor, 4-Wire, Heated
DriveWire
Oxygen Sensor, 4-Wire, Heated
Part Number: REPF960908
Vehicle Info Required to Guarantee Fit
$18.99
Product Details
Location : Passenger Side - Before Catalytic Converter, After Catalytic Converter, Driver Side - Before Catalytic Converter, Before Catalytic Converter, Passenger Side - After Catalytic Converter, After Secondary Catalytic Converter, Before Catalytic Converter, Driver Side - After Catalytic Converter, Before Catalytic Converter, Driver Side - After Catalytic Converter, After Catalytic Converter, Driver Side - Before Catalytic Converter, Before Or After Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 18.82 in. Wire LengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25024127Connector 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: RM96090020
Vehicle Info Required to Guarantee Fit
$27.49
Product Details
Location : After Catalytic ConverterNotes : HeatedType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 12.8 in. Wire LengthInterchange Part Number : 25024872Warranty : 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, 5-Wire, Heated, Wideband Sensor
DriveWire
Before Catalytic Converter Oxygen Sensor, 5-Wire, Heated, Wideband Sensor
Part Number: REPM960921
Vehicle Info Required to Guarantee Fit
$57.99
Product Details
Location : Before Catalytic ConverterNotes : Wideband sensorType : 5-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 : 25025029Connector 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 and After Catalytic Converter Oxygen Sensor, Set of 2
DriveWire
Before and After Catalytic Converter Oxygen Sensor, Set of 2
Part Number: SET-REPM960921-2
Vehicle Info Required to Guarantee Fit
$61.49
Product Details
Location : Before And After Catalytic ConverterQuantity Sold : Set of 2Product Fit : Direct FitWarranty : 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, Heated
DriveWire
Oxygen Sensor, 4-Wire, Heated
Part Number: F960903
Vehicle Info Required to Guarantee Fit
$28.49
Product Details
Location : Before Catalytic Converter, Before Or After Catalytic ConverterType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 18.9 in. Wire LengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25024301Connector 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
Page 1 of 38 | Showing 1 - 15 of 570 results

Top Rated Products

DriveWire Before Catalytic Converter Oxygen Sensors, 4-wire, Rear Wheel Drive
$52.99( Review)
All parts fit
Roger S.
VERIFIED PURCHASER
DriveWire Oxygen Sensor, 4-Wire, Heated
$17.99( Review)
was exactly what I needed. best price around!
Jackson M.
VERIFIED PURCHASER
DriveWire Before Catalytic Converter Oxygen Sensors, 4-wire
$33.99( Review)
Good quality! Got perfect in my car.
Beatris V.
VERIFIED PURCHASER

Product Questions & Answers

DriveWire Before Catalytic Converter Oxygen Sensor, 5-Wire, Heated, Wideband Sensor
$57.99
Q:Is this upstream?
Amanda G.
A:BEST ANSWERHi Amanda, I'll be glad to assist you. Yes, this is an upstream sensor. Click the link below to order the sensor and enjoy the current 40% sale. Have a good one! https://www.carparts.com/oxygen-sensor/drivewire/repm960921?can=cpab2020_20220426 Show less
Andrew B.
 
1 Question, 1 AnswerView all Q&As >
DriveWire Oxygen Sensor, 4-Wire, Heated
$28.49
Q:P0420 code related to catalytic converter. Is that oxygen sensor problem or what else? Show Less
ABDUL W.
A:BEST ANSWERHi Abdul, I'm happy to assist you. The most common cause of that error code is the catalytic converter. Click this link for more information: https://www.carparts.com/blog/p0420-code-catalyst-system-efficiency-below-threshold-bank-1/ I hope this helps. Enjoy shopping at Carparts.com! 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?