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, Sold individually, 4-Wire, Heated
Part Number: REPF960904
Vehicle Info Required to Guarantee Fit
$25.35
Product Details
Location : Center, Passenger Side - Before Catalytic Converter, After 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, After Primary Catalytic Converter, Driver Side - After Catalytic Converter, Before Catalytic Converter, Driver Side - After Catalytic Converter, After Catalytic Converter, Before Or After Catalytic Converter, Driver Side - Before 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
Oxygen Sensors, Set of 2, 4-wire, Heated
Part Number: SET-REPF960904-2
Vehicle Info Required to Guarantee Fit
$49.49
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 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 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 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
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
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
Before Catalytic Converter, Oxygen Sensor, 5-Wire, Wideband Sensor
Part Number: REPA960912
Vehicle Info Required to Guarantee Fit
$56.99
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
Part Number: REPS960907
Vehicle Info Required to Guarantee Fit
$23.99
Product Details
Location : After Catalytic Converter Or Center, 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
Oxygen Sensor, 4-Wire, Heated
Part Number: REPF960911
Vehicle Info Required to Guarantee Fit
$19.27
Product Details
Location : After Catalytic Converter, Front Or Rear, After Catalytic Converter, Passenger Side, After Catalytic Converter, Rear, After Catalytic Converter, After Catalytic Converter, FrontType : 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
Part Number: F960903
Vehicle Info Required to Guarantee Fit
$31.49
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
Before Catalytic Converter, Driver and Passenger Side Oxygen Sensors, 4-wire
Part Number: SET-F960903-2
Vehicle Info Required to Guarantee Fit
$59.49
Product Details
Location : Before Catalytic Converter, Driver And Passenger Side, Before Catalytic Converter, Before And After Catalytic Converter, Before Catalytic Converter, Front, After Catalytic ConverterComponents : (2) Oxygen SensorsType : 4-wireQuantity Sold : Set of 2Product 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 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
Oxygen Sensor, 4-Wire, Heated
Part Number: REPF960908
Vehicle Info Required to Guarantee Fit
$19.49
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
Before Catalytic Converter Oxygen Sensor, 5-Wire, Heated, Wideband Sensor
Part Number: REPM960921
Vehicle Info Required to Guarantee Fit
$49.25
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
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 and After Catalytic Converter Oxygen Sensor, Set of 2, 2.0L, 4Cyl
Part Number: SET-REPM960921-2
Vehicle Info Required to Guarantee Fit
$72.99
Product Details
Location : Before And After Catalytic ConverterComponents : (2) Oxygen SensorQuantity 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
Before or After Catalytic Converter, Driver or Passenger Side Oxygen Sensor, 4-Wire, Heated
Part Number: RF96090005
Vehicle Info Required to Guarantee Fit
$19.99
Product Details
Location : Driver Side, Before Catalytic Converter, Passenger Side - Before Catalytic Converter, Before Catalytic Converter, After Catalytic Converter, Before Or After Catalytic Converter, Driver Side - Before Catalytic ConverterNotes : HeatedType : 4-wireQuantity Sold : Sold IndividuallyProduct Fit : Direct FitWire Length : 17.72 in. Wire LengthInterchange Part Number : 25024701Warranty : 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 40 | Showing 1 - 15 of 588 results

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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)DTC P0141 stands for “Oxygen Sensor Heater Circuit Malfunction (Bank 1, Sensor 2).” It indicates that there’s a problem with the heater circuit of engine bank 1’s downstream O2 sensor. Your car’s PCM tests the oxygen sensors’ heater circuits for integrity. If it finds an issue in the heater circuit
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3Diagnostic trouble code (DTC) P0042 stands for “HO2S Heater Control Circuit Bank 1 Sensor 3.” It is logged when the powertrain control module(PCM) detects a possible issue with the heater circuit for the third sensor downstream from the engine on bank 1.
P0135 Code: Heated O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)
P0135 Code: Heated O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)The O2 sensor is a component within your vehicle that monitors its air-to-fuel ratio. Your car’s computer uses information from this sensor to regulate fuel mixture and control emissions, but the latter has to be hot enough before this can happen.