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2020 Mercedes Benz E450

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, Driver Side Oxygen Sensor, 5-wire, 6 Cyl., 3.0L Engine, Wideband Sensor, Turbocharged, GAS, Engine Designation: 276.823
Part Number: REPM960923
Guaranteed to Fit
$52.49
Vehicle Fitment
  • 2020 Mercedes Benz E450 4Matic 6 Cyl 3.0L Eng Des: 276.823, FI, Turbocharged, GAS
  • 2020 Mercedes Benz E450 Base 6 Cyl 3.0L Eng Des: 276.823, FI, Turbocharged, GAS
Product Details
Location : Before Catalytic Converter, Driver SideNotes : Wideband sensorType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 20 in. Wire lengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25025043Connector 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, 5-wire, 6 Cyl., 3.0L Engine, Wideband Sensor, Turbocharged, GAS, Engine Designation: 276.823
Part Number: SET-REPM960923
Guaranteed to Fit
$99.49
Vehicle Fitment
  • 2020 Mercedes Benz E450 4Matic 6 Cyl 3.0L Eng Des: 276.823, FI, Turbocharged, GAS
  • 2020 Mercedes Benz E450 Base 6 Cyl 3.0L Eng Des: 276.823, FI, Turbocharged, GAS
Product Details
Location : Before Catalytic Converter, Driver and Passenger SideNotes : Wideband sensorComponents : (2) Oxygen SensorsType : 5-wireQuantity Sold : Set of 2Product Fit : Direct FitWire Length : 20 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
Passenger Side, Before Catalytic Converter Oxygen Sensor, 5-wire, 6 Cyl., 3.0L Engine, Wideband Sensor, Turbocharged, GAS, Engine Designation: 276.823
Part Number: REPB960915
Guaranteed to Fit
$63.99
Vehicle Fitment
  • 2020 Mercedes Benz E450 4Matic 6 Cyl 3.0L Engine Des: 276.823, Turbocharged, GAS
  • 2020 Mercedes Benz E450 Base 6 Cyl 3.0L Engine Des: 276.823, Turbocharged, GAS
Product Details
Location : Passenger Side, 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 : 25025042Connector 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
Walker Products Original Equipment Base Sensor Oxygen Sensor, Sold individually 5-wire
Part Number: WKP25025042
Guaranteed to Fit
$92.49
Vehicle Fitment
  • 2020 Mercedes Benz E450 4Matic 6 Cyl 3.0L Engine Des: 276.823, Turbocharged, GAS
  • 2020 Mercedes Benz E450 Base 6 Cyl 3.0L Engine Des: 276.823, Turbocharged, GAS
Product Details
Location : Passenger Side, Before Catalytic ConverterNotes : Wideband sensorType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 14.76 in. Wire LengthInterchange Part Number : REPB960915Warranty : 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
Walker Products Original Equipment Base Sensor Oxygen Sensor, Sold individually 5-wire
Part Number: WKP25025043
Guaranteed to Fit
$94.99
Vehicle Fitment
  • 2020 Mercedes Benz E450 4Matic 6 Cyl 3.0L Eng Des: 276.823, FI, Turbocharged, GAS
  • 2020 Mercedes Benz E450 Base 6 Cyl 3.0L Eng Des: 276.823, FI, Turbocharged, GAS
Product Details
Location : Before Catalytic Converter, Driver SideNotes : Wideband sensorType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 21.65 in. Wire LengthInterchange Part Number : REPM960923Warranty : 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
Front Oxygen Sensor, Sold individually 5-wire
Part Number: FAC108464
Guaranteed to Fit
$72.99
Vehicle Fitment
  • 2020 Mercedes Benz E450 4Matic 6 Cyl 3.0L
  • 2020 Mercedes Benz E450 Base 6 Cyl 3.0L
Product Details
Location : FrontType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 14 in. Wire LengthReplaces OE Number : A0035426918, 11787537984, 7537984, 1588A001, K05149012AA, A0095425518, 5149012AAInterchange Part Number : A0035426918, 11787537984, 7537984, 1588A001, K05149012AA, A0095425518, 5149012AAWarranty : Facet 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.

Front Oxygen Sensor, Sold individually 5-wire
Part Number: FAC108480
Guaranteed to Fit
$75.99
Vehicle Fitment
  • 2020 Mercedes Benz E450 4Matic 6 Cyl 3.0L
Product Details
Location : FrontType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 31 in. Wire LengthReplaces OE Number : 11788514489, 8514489, A0095425818, A0075420218Interchange Part Number : 11788514489, 8514489, A0095425818, A0075420218Warranty : Facet 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, Sold individually
Part Number: BS17347
Guaranteed to Fit
$81.49
Vehicle Fitment
  • 2020 Mercedes Benz E450 4Matic 6 Cyl 3.0L Sedan
Product Details
Location : Before Catalytic Converter, Driver SideQuantity Sold : Sold individuallyProduct Fit : Direct FitWarranty : 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 : European Vehicle Parts
Driver Side, Before Catalytic Converter Oxygen Sensor, Sold individually
Part Number: BS16120
Guaranteed to Fit
$90.49
Vehicle Fitment
  • 2020 Mercedes Benz E450 4Matic 6 Cyl 3.0L Coupe, AWD
  • 2020 Mercedes Benz E450 Base 6 Cyl 3.0L RWD
Product Details
Location : Driver Side, Before Catalytic ConverterQuantity Sold : Sold individuallyProduct Fit : Direct FitWarranty : 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 : European Vehicle Parts
Walker Products Aftermarket Base Sensor Oxygen Sensor, Sold individually 4-wire
Part Number: WKP35034063
Guaranteed to Fit
$104.49
Vehicle Fitment
  • 2020 Mercedes Benz E450 4Matic 6 Cyl 3.0L Eng Des: 276.823, FI, Turbocharged, GAS
  • 2020 Mercedes Benz E450 Base 6 Cyl 3.0L Eng Des: 276.823, FI, Turbocharged, GAS
Product Details
Location : After Catalytic ConverterNotes : HeatedType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 27.56 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 Aftermarket Base Sensor
Bosch Oxygen Sensor Oxygen Sensor, Sold individually 5-wire
Part Number: BS17354
Guaranteed to Fit
$98.99
Vehicle Fitment
  • 2020 Mercedes Benz E450 4Matic 6 Cyl 3.0L
  • 2020 Mercedes Benz E450 Base 6 Cyl 3.0L
Product Details
Location : Passenger Side, Before Catalytic ConverterType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitMounting 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 : European Vehicle PartsSeries : Bosch Oxygen Sensor
Walker Products Aftermarket Base Sensor Oxygen Sensor, Sold individually 5-wire
Part Number: WKP35035076
Guaranteed to Fit
$100.49
Vehicle Fitment
  • 2020 Mercedes Benz E450 4Matic 6 Cyl 3.0L Eng Des: 276.823, FI, Turbocharged, GAS
  • 2020 Mercedes Benz E450 Base 6 Cyl 3.0L Eng Des: 276.823, FI, Turbocharged, GAS
Product Details
Location : Passenger Side, Before Catalytic ConverterNotes : Wideband sensorType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 14.76 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 Aftermarket Base Sensor
Walker Products Aftermarket Base Sensor Oxygen Sensor, Sold individually 5-wire
Part Number: WKP35035019
Guaranteed to Fit
$108.49
Vehicle Fitment
  • 2020 Mercedes Benz E450 4Matic 6 Cyl 3.0L Eng Des: 276.823, FI, Turbocharged, GAS
  • 2020 Mercedes Benz E450 Base 6 Cyl 3.0L Eng Des: 276.823, FI, Turbocharged, GAS
Product Details
Location : Driver Side, Before Catalytic ConverterNotes : Wideband sensorType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 21.65 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 Aftermarket Base Sensor
Walker Products Original Equipment Base Sensor Oxygen Sensor, Sold individually 4-wire
Part Number: WKP250241035
Guaranteed to Fit
$121.99
Vehicle Fitment
  • 2020 Mercedes Benz E450 4Matic 6 Cyl 3.0L Eng Des: 276.823, FI, Turbocharged, GAS
  • 2020 Mercedes Benz E450 Base 6 Cyl 3.0L Eng Des: 276.823, FI, Turbocharged, GAS
Product Details
Location : After Catalytic ConverterNotes : HeatedType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 27.56 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
Before Catalytic Converter, Driver Side Oxygen Sensor, 5-wire, 6 Cylinder, 3.0L Engine, Eng Des: 276.823, FI, Turbocharged, GAS
Part Number: JM960923
Guaranteed to Fit
$52.99
Vehicle Fitment
  • 2020 Mercedes Benz E450 4Matic 6 Cyl 3.0L Eng Des: 276.823, FI, Turbocharged, GAS
  • 2020 Mercedes Benz E450 Base 6 Cyl 3.0L Eng Des: 276.823, FI, Turbocharged, GAS
Product Details
Location : Before Catalytic Converter, Driver SideNotes : Wideband sensorType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 20 in. Wire lengthThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25025043Connector Gender : Male ConnectorWarranty : 1-year JC Whitney 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 2 | Showing 1 - 15 of 29 results

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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?