Denso 234-4071 Oxygen Sensor
OE Quality 60-Day Returns
Denso
 OE Style

Denso 234-4071 Oxygen Sensor

Brand Denso 234-4071
Position Downstream
Connector Gender Male
Mounting Type Threaded
Sensor Type Heated
Thread Diameter 0.708
Universal Or Specific Fit Specific
Wire Quantity 4
Wiring Harness Length 10.83
Product line OE Style
Fits Ford, Mazda, Mercury, Jaguar, and Lincoln · 247 vehicles

OE style replacement. Precision-built for exact replacement and a first-time fit.

Heated sensor. Helps support quicker operation and consistent performance.

Threaded mounting. Installs with a secure, specific-fit connection.

Cross-references ACDelco 213-1317, ACDelco 213-1408 and BorgWarner OS109 for the same application. See all 48.

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Not what you need? See all Oxygen Sensor options

OE-Style Oxygen Sensor for Ford and Mazda

The Denso 234-4071 is a heated, specific-fit oxygen sensor built to OE-style dimensions for direct replacement on a wide range of Ford, Mazda, Mercury, Jaguar, and Lincoln applications. It is engineered for accurate exhaust feedback, stable drivability, and proper emissions system operation.

Key Features

  • Heated oxygen sensor for faster operating response
  • Specific fit design for direct replacement
  • 4-wire configuration with male connector
  • Threaded mounting type with 0.708 in. thread diameter
  • 10.83 in. wiring harness length
  • OE-style construction for factory-style fit and function

Product Details

Denso OE Style oxygen sensors are manufactured and tested to OE standards for precise replacement fitment. The 234-4071 uses Denso’s aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting consistent sensor performance and long service life. This part cross-references Bosch 15716 and NTK 22500 for the same application. It is a strong match for drivers searching for a Ford Ranger oxygen sensor, Mazda B3000 downstream sensor, or a replacement oxygen sensor for Ford Explorer and related trucks and SUVs.

Common Problems This Part Addresses

  • Check engine light related to oxygen sensor performance
  • Incorrect air-fuel ratio readings
  • Reduced fuel economy from a slow or inaccurate sensor
  • Rough idle or hesitation caused by poor exhaust feedback
  • Emissions test failure tied to sensor degradation

Installation Notes and Tips

Verify the sensor position, connector style, and harness length before installation. This part is a specific-fit, threaded oxygen sensor, so match the vehicle application exactly, including downstream or upstream location and any notes for California or sensor-length variations. For best results, inspect the connector, wiring routing, and exhaust threads before installation.

Quality Assurance

Denso manufactures this OE Style oxygen sensor to strict OE standards and tests each component for replacement accuracy and first-time fit. The design focuses on dependable sensor response, emissions control performance, and long-term durability.

Related reading

This part fits 247 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionFuel TypePositionNotes
2011FordRanger——Downstream LeftOE Style
2011FordRanger——Downstreamw/ 11" Downstream Sensor; OE Style
2010FordRanger——Downstream LeftOE Style
2010FordRanger——Downstreamw/ 11" Downstream Sensor; OE Style
2010MazdaB2300——Downstreamw/ 11" Downstream Sensor; OE Style
2010MazdaB4000——Downstream LeftOE Style
2009FordRanger——Downstream LeftOE Style
2009FordRanger——Downstreamw/ 11" Downstream Sensor; OE Style
2009MazdaB2300——Downstreamw/ 11" Downstream Sensor; OE Style
2009MazdaB4000——Downstream LeftOE Style
2008FordRanger——Downstream LeftOE Style
2008FordRanger——Downstreamw/ 11" Downstream Sensor; OE Style
2008MazdaB2300——Downstreamw/ 11" Downstream Sensor; OE Style
2008MazdaB3000——Downstream LeftOE Style
2008MazdaB4000——Downstream LeftOE Style
2007FordRanger——Downstream LeftOE Style
2007FordRanger——Downstreamw/ 11" Downstream Sensor; OE Style
2007MazdaB2300——Downstreamw/ 11" Downstream Sensor; OE Style
2007MazdaB3000——Downstream LeftOE Style
2007MazdaB4000——Downstream LeftOE Style
2006FordRanger——Downstreamw/ 11" Downstream Sensor; OE Style
2006MazdaB2300——Downstreamw/ 11" Downstream Sensor; OE Style
2006MazdaB3000——Downstreamw/ 11" Downstream Sensor; OE Style
2006MazdaB4000——Downstreamw/ 11" Downstream Sensor; OE Style
2005FordExplorer——Downstreamw/ 11" Downstream Sensor; OE Style
2005FordRanger——Downstreamw/ 11" Downstream Sensor; OE Style
2005MazdaB2300——Downstreamw/ 11" Downstream Sensor; OE Style
2005MazdaB3000——Downstreamw/ 11" Downstream Sensor; OE Style
2005MazdaB4000——Downstreamw/ 11" Downstream Sensor; OE Style
2005MercuryMountaineer——Downstreamw/ 11" Downstream Sensors; OE Style
2004FordExplorer——Downstreamw/ 11" Downstream Sensor; OE Style
2004FordRanger——Downstreamw/ 11" Downstream Sensor; OE Style
2004MazdaB2300——Downstreamw/ 11" Downstream Sensor; OE Style
2004MazdaB3000——Downstreamw/ 11" Downstream Sensor; OE Style
2004MazdaB4000——Downstreamw/ 11" Downstream Sensor; OE Style
2004MercuryMountaineer——Downstreamw/ 11" Downstream Sensors; OE Style
2003FordExplorer——DownstreamOE Style
2003FordExplorer Sport——DownstreamOE Style
2003FordExplorer Sport Trac——DownstreamOE Style
2003FordRanger——DownstreamOE Style
2003FordRanger——Downstreamw/ 10" Downstream Sensor; OE Style
2003FordWindstar——DownstreamOE Style
2003MazdaB2300——DownstreamOE Style
2003MazdaB3000——Downstreamw/ 10" Downstream Sensor; OE Style
2003MazdaB4000——Downstreamw/ 11" Downstream Sensor; OE Style
2002FordExplorer——DownstreamOE Style
2002FordExplorer Sport——DownstreamOE Style
2002FordExplorer Sport Trac——DownstreamOE Style
2002FordRanger——DownstreamOE Style
2002FordRanger——Downstreamw/ 10" Downstream Sensor; OE Style
2002FordWindstar——DownstreamOE Style
2002JaguarS-Type——DownstreamOE Style
2002MazdaB2300——DownstreamOE Style
2002MazdaB3000——Downstreamw/ 10" Downstream Sensor; OE Style
2002MazdaB4000——Downstreamw/ 11" Downstream Sensor; OE Style
2002MercuryMountaineer—GASDownstreamOE Style
2001FordE-150 Econoline——UpstreamExcluding California.; OE Style
2001FordE-150 Econoline Club Wagon——UpstreamExcluding California.; OE Style
2001FordE-250 Econoline——UpstreamExcluding California.; OE Style
2001FordExplorer——DownstreamOE Style
2001FordExplorer Sport——DownstreamOE Style
2001FordExplorer Sport Trac——DownstreamOE Style
2001FordMustang——Downstream RightOE Style
2001FordRanger——DownstreamOE Style
2001FordRanger——Downstreamw/ 10" Downstream Sensor; OE Style
2001FordRanger——UpstreamOE Style
2001FordWindstar——DownstreamOE Style
2001JaguarS-Type——DownstreamOE Style
2001MazdaB2300——DownstreamOE Style
2001MazdaB2500——UpstreamOE Style
2001MazdaB3000——Downstreamw/ 10" Downstream Sensor; OE Style
2001MazdaB4000——Downstreamw/ 11" Downstream Sensor; OE Style
2001MercuryMountaineer——DownstreamOE Style
2000FordE-150 Econoline——UpstreamExcluding California.; OE Style
2000FordE-150 Econoline Club Wagon——UpstreamExcluding California.; OE Style
2000FordE-250 Econoline——UpstreamExcluding California.; OE Style
2000FordExplorer——DownstreamOE Style
2000FordF-150——UpstreamExcluding California.; OE Style
2000FordRanger——Upstream LeftOE Style
2000FordRanger——UpstreamOE Style
2000FordWindstar——DownstreamOE Style
2000FordWindstar——UpstreamOE Style
2000JaguarS-Type——DownstreamOE Style
2000MazdaB2500——UpstreamOE Style
2000MazdaB3000——Upstream LeftOE Style
2000MazdaB4000——Upstream LeftOE Style
2000MercuryMountaineer——DownstreamOE Style
1999FordE-150 Econoline——UpstreamOE Style
1999FordE-150 Econoline Club Wagon——UpstreamOE Style
1999FordE-250 Econoline—GASUpstreamOE Style
1999FordE-250 Econoline—BI-FUELUpstreamw/ 11" Upstream Sensors; OE Style
1999FordE-250 Econoline——UpstreamOE Style
1999FordE-350 Econoline Club Wagon——Upstreamw/ 11" Upstream Sensor; OE Style
1999FordE-350 Econoline Club Wagon—GASUpstreamOE Style
1999FordE-350 Econoline Club Wagon—BI-FUELUpstreamw/ 11" Upstream Sensors; OE Style
1999FordE-350 Super Duty——Upstreamw/ 10.75" Lead; OE Style
1999FordE-350 Super Duty—GASUpstreamOE Style
1999FordE-350 Super Duty—BI-FUELUpstreamw/ 11" Upstream Sensor; OE Style
1999FordExplorer——DownstreamOE Style
1999FordF-150——UpstreamExcluding California.; OE Style
1999FordF-250—GASUpstreamExcluding California.; OE Style
1999FordF-250—BI-FUELUpstreamExcluding California.; OE Style
1999FordF-250 Super Duty——DownstreamOE Style
1999FordF-350 Super Duty——DownstreamOE Style
1999FordMustang——Downstream RightOE Style
1999FordRanger——Upstream LeftOE Style
1999FordRanger——UpstreamOE Style
1999FordWindstar——DownstreamOE Style
1999FordWindstar——UpstreamOE Style
1999MazdaB2500——UpstreamOE Style
1999MazdaB3000——Upstream LeftOE Style
1999MazdaB4000——Upstream LeftOE Style
1999MercuryMountaineer——DownstreamOE Style
1998FordE-150 Econoline——UpstreamOE Style
1998FordE-150 Econoline Club Wagon——UpstreamOE Style
1998FordE-250 Econoline—GASUpstreamOE Style
1998FordE-250 Econoline—BI-FUELUpstreamOE Style
1998FordE-250 Econoline——UpstreamOE Style
1998FordE-350 Econoline——UpstreamOE Style
1998FordE-350 Econoline—BI-FUELUpstreamOE Style
1998FordE-350 Econoline Club Wagon——UpstreamOE Style
1998FordE-350 Econoline Club Wagon—GASUpstreamOE Style
1998FordE-350 Econoline Club Wagon—BI-FUELUpstreamOE Style
1998FordExpedition——UpstreamOE Style
1998FordExplorer——Upstream LeftOE Style
1998FordExplorer——DownstreamOE Style
1998FordF-150—GASUpstreamOE Style
1998FordF-150—BI-FUELUpstreamOE Style
1998FordF-150——UpstreamOE Style
1998FordF-250—GASUpstreamOE Style
1998FordF-250—BI-FUELUpstreamOE Style
1998FordF-250——UpstreamOE Style
1998FordRanger——Upstream LeftOE Style
1998FordWindstar——UpstreamOE Style
1998FordWindstar——DownstreamOE Style
1998LincolnNavigator——UpstreamOE Style
1998MazdaB3000——Upstream LeftOE Style
1998MazdaB4000——Upstream LeftOE Style
1998MercuryMountaineer——Upstream LeftOE Style
1998MercuryMountaineer——DownstreamOE Style
1997FordE-150 Econoline——UpstreamOE Style
1997FordE-150 Econoline Club Wagon——UpstreamOE Style
1997FordE-250 Econoline——UpstreamOE Style
1997FordExpedition——UpstreamOE Style
1997FordExplorer——Upstream LeftOE Style
1997FordExplorer——DownstreamOE Style
1997FordF-150——UpstreamOE Style
1997FordF-250—GASUpstreamOE Style
1997FordF-250——UpstreamOE Style
1997FordF-250 HDManual—Upstream RightCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1997FordF-250 HD——UpstreamOE Style
1997FordF-350Manual—Upstream RightCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1997FordF-350——UpstreamOE Style
1997FordRanger——Upstream LeftOE Style
1997FordWindstar——UpstreamOE Style
1997FordWindstar——DownstreamOE Style
1997MazdaB4000——Upstream LeftOE Style
1997MercuryMountaineer——Upstream LeftOE Style
1997MercuryMountaineer——DownstreamOE Style
1996FordBronco——UpstreamOE Style
1996FordE-150 Econoline——UpstreamOE Style
1996FordE-150 Econoline Club Wagon——UpstreamOE Style
1996FordE-250 Econoline——UpstreamOE Style
1996FordE-350 Econoline——Upstreamw/ 10" Upstream Sensor; OE Style
1996FordE-350 Econoline——UpstreamOE Style
1996FordE-350 Econoline Club Wagon——Upstreamw/ 10" Upstream Sensor; OE Style
1996FordE-350 Econoline Club Wagon——UpstreamOE Style
1996FordExplorer——Upstream LeftOE Style
1996FordExplorer——DownstreamOE Style
1996FordF-150——UpstreamOE Style
1996FordF-250Manual—Upstream RightCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1996FordF-250——UpstreamGVW Under 8,500 Lbs.; OE Style
1996FordF-250Automatic—UpstreamGVW Over 8,500 Lbs; Calif.; OE Style
1996FordF-250——UpstreamOE Style
1996FordF-350Manual—Upstream RightCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1996FordF-350Automatic—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1996FordF-350——UpstreamOE Style
1996FordWindstar——UpstreamOE Style
1996FordWindstar——DownstreamOE Style
1995FordAerostar——UpstreamOE Style
1995FordBronco——UpstreamExcluding California.; OE Style
1995FordBronco——UpstreamOE Style
1995FordE-150 Econoline——UpstreamExcluding California.; OE Style
1995FordE-150 Econoline——UpstreamOE Style
1995FordE-150 Econoline Club Wagon——UpstreamExcluding California.; OE Style
1995FordE-150 Econoline Club Wagon——UpstreamOE Style
1995FordE-250 Econoline——UpstreamExcluding California.; OE Style
1995FordE-250 Econoline——UpstreamOE Style
1995FordE-350 Econoline——UpstreamOE Style
1995FordE-350 Econoline Club Wagon——UpstreamOE Style
1995FordF-150——UpstreamExcluding California.; OE Style
1995FordF-150——UpstreamOE Style
1995FordF-150Automatic—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1995FordF-250——UpstreamExc. Calif.; GVW Under 8,500 Lb.; OE Style
1995FordF-250——UpstreamOE Style
1995FordF-250——UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1995FordWindstar——UpstreamOE Style
1995FordWindstar——DownstreamOE Style
1994FordAerostar——UpstreamOE Style
1994FordBronco——UpstreamOE Style
1994FordE-150 Econoline——UpstreamOE Style
1994FordE-150 Econoline Club Wagon——UpstreamOE Style
1994FordE-250 Econoline——UpstreamGVW Under 8,500 Lbs.; OE Style
1994FordE-250 Econoline——UpstreamOE Style
1994FordE-350 Econoline——UpstreamOE Style
1994FordE-350 Econoline Club Wagon——UpstreamOE Style
1994FordF-150——UpstreamOE Style
1994FordF-250——UpstreamGVW Under 8,500 Lbs.; OE Style
1994FordF-250——UpstreamOE Style
1993FordAerostar——UpstreamOE Style
1993FordBronco——UpstreamOE Style
1993FordE-150 Econoline——UpstreamOE Style
1993FordE-150 Econoline Club Wagon——UpstreamOE Style
1993FordE-250 Econoline——UpstreamGVW Under 8,500 Lbs.; OE Style
1993FordE-250 Econoline——UpstreamOE Style
1993FordE-350 Econoline——UpstreamOE Style
1993FordE-350 Econoline Club Wagon——UpstreamOE Style
1993FordF-150——UpstreamOE Style
1993FordF-250——UpstreamGVW Under 8,500 Lbs.; OE Style
1993FordF-250——UpstreamOE Style
1992FordAerostar——UpstreamOE Style
1992FordBronco——Upstreamw/ 11" Sensor; OE Style
1992FordBronco——UpstreamOE Style
1992FordE-150 Econoline——UpstreamOE Style
1992FordE-150 Econoline Club Wagon——UpstreamOE Style
1992FordE-250 Econoline——UpstreamGVW Under 8,500 Lbs.; OE Style
1992FordE-250 Econoline——UpstreamOE Style
1992FordE-350 Econoline——UpstreamOE Style
1992FordE-350 Econoline Club Wagon——UpstreamOE Style
1992FordF-150——Upstreamw/ 11" Sensor; OE Style
1992FordF-150——UpstreamOE Style
1992FordF-250——UpstreamGVW Under 8,500 Lbs.; w/ 11" Upstream Sensor; OE Style
1992FordF-250——UpstreamOE Style
1991FordBronco——Upstreamw/ 11" Sensor; OE Style
1991FordBronco——UpstreamOE Style
1991FordE-150 Econoline——UpstreamOE Style
1991FordE-150 Econoline Club Wagon——UpstreamOE Style
1991FordE-250 Econoline——UpstreamGVW Under 8,500 Lbs.; OE Style
1991FordE-250 Econoline——UpstreamOE Style
1991FordE-250 Econoline Club Wagon——UpstreamGVW Under 8,500 Lbs.; OE Style
1991FordE-250 Econoline Club Wagon——UpstreamOE Style
1991FordE-350 Econoline——UpstreamOE Style
1991FordE-350 Econoline Club Wagon——UpstreamOE Style
1991FordF-150——Upstreamw/ 11" Sensor; OE Style
1991FordF-150——UpstreamOE Style
1991FordF-250——UpstreamGVW Under 8,500 Lbs.; w/ 11" Upstream Sensor; OE Style
1991FordF-250——UpstreamOE Style
Directly replaces or cross-references 48 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 213-1317ACDelco — 213-1408BorgWarner — OS109BorgWarner — OS122BorgWarner — OS124BorgWarner — OS152BorgWarner — OS209BorgWarner — OS244BorgWarner — OS1957Bosch — 15716Bosch — 15717Delphi — ES20014Delphi — ES20064Delphi — ES20316Ford — F1UZ9F472AFord — F2AZ9F472AFord — F4UZ9F472AFord — F39Z9F472DFord — F85Z9G444ABFord — F85Z9G444EFord — F88Z9F472AAFord — F88Z9F472ABFord — XR3Z9G444CAJaguar — XR82007Mazda — 1F2018860Mazda — 1F8018860Mazda — ZZP018861Motorcraft — DY642Motorcraft — DY658Motorcraft — DY705Motorcraft — DY710Motorcraft — DY712Motorcraft — DY728Motorcraft — DY731Motorcraft — DY805Motorcraft — DY815Motorcraft — DY832Motorcraft — DY1057Motorcraft — DY1081Motorcraft — DY1098NTK — 22500Standard Ignition — SG165Standard Ignition — SG601Standard Ignition — SG1806Standard Ignition — SG1807Standard Ignition — SG1808Walker Products — 250-24001Walker Products — 350-34414