Denso 234-4609 Oxygen Sensor
OE Quality 60-Day Returns
Denso
 OE Style

Denso 234-4609 Oxygen Sensor

Brand Denso 234-4609
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 18.11
Product line OE Style
Fits Ford, Lincoln, Mazda, Mercury, Lotus, Jaguar, and Plymouth · 268 vehicles

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

Heated sensor. Helps support faster operation and consistent readings.

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

Cross-references ACDelco 213-1317, ACDelco 213-1408 and ACDelco 213-1459 for the same application. See all 104.

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Denso OE Style Oxygen Sensor 234-4609

Denso 234-4609 is an OE Style heated oxygen sensor built for specific-fit replacement on a wide range of Ford, Lincoln, Mercury, Mazda, and related applications. It is engineered for direct replacement on downstream and upstream positions where listed, including Ford Crown Victoria, Lincoln Town Car, and Mercury Grand Marquis coverage.

Key Features

  • Heated oxygen sensor with a specific-fit design for direct replacement
  • 4-wire configuration with male connector
  • Threaded mounting type with 0.708 thread diameter
  • 18.11 wiring harness length for listed applications
  • Built to OE-style dimensions for first-time fit
  • Aluminum oxide trap layer helps protect the ceramic element from silicone and lead contamination

OE Style Design and Fitment

Denso’s OE Style line is built and tested to strict original-equipment standards, with precision construction aimed at accurate fit and dependable sensor response. The Denso 234-4609 oxygen sensor is used across many downstream and upstream applications, including Fits 1996-2011 Ford Crown Victoria, downstream and Fits 1995-2011 Lincoln Town Car, downstream. It also covers Fits 1996-2011 Mercury Grand Marquis, downstream and Fits 2004-2010 Ford Escape, downstream.

This part cross-references Bosch 13117 and NTK 22009 for the same application.

What This Oxygen Sensor Helps Address

  • Check engine light caused by oxygen sensor faults
  • Incorrect air-fuel mixture readings
  • Reduced fuel economy from a slow or inaccurate sensor
  • Emissions test failures tied to sensor performance
  • Rough idle or drivability issues related to exhaust feedback

Installation Notes and Tips

Verify the exact position, connector style, wire count, and thread size before installation. This sensor is specific fit, so match the vehicle year, make, model, and listed upstream or downstream location exactly. For best results, inspect the harness routing and connector condition before installation, and confirm the application notes for vehicles with side-specific or date-specific coverage such as 2007 Ford Fusion downstream right and 2010 Lincoln MKS downstream right.

Quality Assurance

Denso manufactures and tests these oxygen sensors to OE standards for accurate replacement fit and consistent performance. The design includes a protective aluminum oxide trap layer to help shield the sensing element from contamination that can shorten sensor life.

Related reading

This part fits 268 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeTransmissionFuel TypePositionNotes
2011FordCrown Victoria———DownstreamOE Style
2011LincolnTown Car———DownstreamOE Style
2011MazdaTribute———DownstreamOE Style
2011MercuryGrand Marquis———DownstreamOE Style
2010FordCrown Victoria———DownstreamOE Style
2010FordEscape———DownstreamOE Style
2010FordFlex———Downstream RightOE Style
2010FordFusion———Downstream LeftOE Style
2010FordFusion———DownstreamOE Style
2010FordTaurus———Downstream RightOE Style
2010LincolnMKS———Downstream RightOE Style
2010LincolnMKT———Downstream RightOE Style
2010LincolnTown Car———DownstreamOE Style
2010MazdaTribute———DownstreamOE Style
2010MercuryGrand Marquis———DownstreamOE Style
2010MercuryMariner———DownstreamOE Style
2010MercuryMilan———Downstream LeftOE Style
2010MercuryMilan———DownstreamOE Style
2009FordCrown Victoria———DownstreamOE Style
2009FordEscape———DownstreamOE Style
2009FordFusionFWD——Downstream RightOE Style
2009FordFusionAWD——Downstream RightOE Style
2009FordFusion———DownstreamOE Style
2009LincolnTown Car———DownstreamOE Style
2009MazdaTribute———DownstreamOE Style
2009MercuryGrand Marquis———DownstreamOE Style
2009MercuryMariner———DownstreamOE Style
2009MercuryMilan———Downstream RightOE Style
2009MercuryMilan———DownstreamOE Style
2008FordCrown Victoria———DownstreamOE Style
2008FordEscape———DownstreamOE Style
2008FordFusionFWD——Downstream RightOE Style
2008FordFusionAWD——Downstream RightOE Style
2008FordFusion———DownstreamOE Style
2008LincolnTown Car———DownstreamOE Style
2008MazdaTribute———DownstreamOE Style
2008MercuryGrand Marquis———DownstreamOE Style
2008MercuryMariner———DownstreamOE Style
2008MercuryMilan———Downstream RightOE Style
2008MercuryMilan———DownstreamOE Style
2007FordCrown Victoria———DownstreamOE Style
2007FordEscape———DownstreamOE Style
2007FordFive Hundred———Downstream RightOE Style
2007FordFreestyle———Downstream RightOE Style
2007FordFusionFWD——Downstream RightFrom 09/04/06; OE Style
2007FordFusionAWD——Downstream RightOE Style
2007FordFusion———DownstreamOE Style
2007LincolnTown Car———DownstreamOE Style
2007MercuryGrand Marquis———DownstreamOE Style
2007MercuryMariner———DownstreamOE Style
2007MercuryMilanFWD——Downstream RightFrom 09/04/06; OE Style
2007MercuryMilanAWD——Downstream RightOE Style
2007MercuryMilan———DownstreamOE Style
2007MercuryMontego———Downstream RightOE Style
2006FordCrown Victoria———DownstreamOE Style
2006FordEscape———DownstreamOE Style
2006FordFive Hundred———Downstream RightOE Style
2006FordFreestyle———Downstream RightOE Style
2006FordFusion———DownstreamOE Style
2006LincolnTown Car———DownstreamOE Style
2006MazdaTribute———Downstream RearOE Style
2006MazdaTribute———DownstreamOE Style
2006MercuryGrand Marquis———DownstreamOE Style
2006MercuryMariner———DownstreamOE Style
2006MercuryMilan———DownstreamOE Style
2006MercuryMontego———Downstream RightOE Style
2005FordCrown Victoria———DownstreamOE Style
2005FordEscape———DownstreamOE Style
2005FordFive Hundred———Downstream RightOE Style
2005FordFreestyle———Downstream RightOE Style
2005LincolnTown Car———DownstreamOE Style
2005MazdaTribute———DownstreamOE Style
2005MercuryGrand Marquis———DownstreamOE Style
2005MercuryMariner———DownstreamOE Style
2005MercuryMontego———Downstream RightOE Style
2004FordCrown Victoria———DownstreamOE Style
2004FordEscape———DownstreamOE Style
2004FordFocus———DownstreamOE Style
2004LincolnTown Car———DownstreamOE Style
2004MazdaTribute———DownstreamOE Style
2004MercuryGrand Marquis———DownstreamOE Style
2004MercuryMarauder———DownstreamOE Style
2003FordCrown Victoria———DownstreamOE Style
2003FordEscape———Downstream FrontOE Style
2003FordExplorer———Downstream LeftOE Style
2003FordExplorer———Downstream RightOE Style
2003FordFocus———DownstreamOE Style
2003LincolnLS———DownstreamOE Style
2003LincolnTown Car———DownstreamOE Style
2003MazdaTribute———DownstreamOE Style
2003MercuryGrand Marquis———DownstreamOE Style
2003MercuryMarauder———DownstreamOE Style
2003MercuryMountaineer———Downstream LeftOE Style
2003MercuryMountaineer———Downstream RightOE Style
2002FordCrown Victoria———DownstreamOE Style
2002FordE-150 Econoline———DownstreamOE Style
2002FordE-150 Econoline Club Wagon———DownstreamOE Style
2002FordEscape———Downstream FrontOE Style
2002FordExplorer———Downstream LeftOE Style
2002FordExplorer———Downstream RightOE Style
2002FordFocus———DownstreamOE Style
2002LincolnLS———DownstreamOE Style
2002LincolnLS—Automatic—DownstreamOE Style
2002LincolnTown Car———DownstreamOE Style
2002MazdaTribute———DownstreamOE Style
2002MercuryGrand Marquis———DownstreamOE Style
2002MercuryMountaineer———Downstream LeftOE Style
2002MercuryMountaineer——FLEXDownstream RightOE Style
2001FordCrown Victoria———DownstreamOE Style
2001FordE-150 Econoline———DownstreamOE Style
2001FordE-150 Econoline Club Wagon———DownstreamOE Style
2001FordE-250 Econoline———DownstreamOE Style
2001FordE-350 Econoline Club Wagon———DownstreamOE Style
2001FordE-350 Super Duty———DownstreamOE Style
2001FordEscape———DownstreamOE Style
2001FordFocus———DownstreamOE Style
2001LincolnLS———DownstreamOE Style
2001LincolnLS—Automatic—DownstreamOE Style
2001LincolnTown Car———DownstreamOE Style
2001MazdaTribute———DownstreamOE Style
2001MercuryCougar———DownstreamOE Style
2001MercuryGrand Marquis———DownstreamOE Style
2000FordContour———DownstreamOE Style
2000FordCrown Victoria———DownstreamOE Style
2000FordE-150 Econoline———DownstreamOE Style
2000FordE-150 Econoline Club Wagon———DownstreamOE Style
2000FordE-250 Econoline——GASDownstreamOE Style
2000FordE-250 Econoline——CNGDownstreamOE Style
2000FordE-350 Econoline Club Wagon———DownstreamOE Style
2000FordE-350 Super Duty———DownstreamOE Style
2000FordFocus———DownstreamOE Style
2000JaguarS-Type———DownstreamOE Style
2000LincolnLS———DownstreamOE Style
2000LincolnLS—Automatic—DownstreamOE Style
2000LincolnTown Car———DownstreamOE Style
2000MercuryCougar———DownstreamOE Style
2000MercuryGrand Marquis———DownstreamOE Style
2000MercuryMystique———DownstreamOE Style
2000PlymouthBreeze———DownstreamOE Style
1999FordContour———DownstreamOE Style
1999FordCrown Victoria———DownstreamOE Style
1999FordE-250 Econoline——CNGUpstreamOE Style
1999FordE-350 Econoline Club Wagon——CNGUpstreamOE Style
1999FordE-350 Super Duty——CNGUpstreamOE Style
1999FordE-350 Super Duty——BI-FUELDownstreamOE # Begins w/ 5W6Z; OE Style
1999FordF-250——CNGUpstreamOE Style
1999FordTaurus———UpstreamOE Style
1999FordTaurus———DownstreamOE Style
1999FordTaurus——GASUpstreamExcluding California.; OE Style
1999FordTaurus——GASDownstreamOE Style
1999FordTaurus——FLEXUpstreamOE Style
1999FordTaurus——FLEXDownstreamOE Style
1999LincolnTown Car———DownstreamOE Style
1999MercuryCougar———DownstreamTo 05/1999; OE Style
1999MercuryCougar———DownstreamOE Style
1999MercuryGrand Marquis———DownstreamOE Style
1999MercuryMystique———DownstreamTo 05/02/99; OE Style
1999MercuryMystique———DownstreamOE Style
1999MercurySable———UpstreamExcluding California.; OE Style
1999MercurySable———DownstreamOE Style
1998FordContour———DownstreamOE Style
1998FordCrown Victoria———DownstreamOE Style
1998FordE-250 Econoline——CNGUpstreamOE Style
1998FordE-350 Econoline——CNGUpstreamOE Style
1998FordE-350 Econoline Club Wagon——CNGUpstreamOE Style
1998FordF-150——CNGUpstreamOE Style
1998FordF-250——CNGUpstreamOE Style
1998FordTaurus———UpstreamOE Style
1998FordTaurus———DownstreamOE Style
1998FordTaurus——GASUpstreamOE Style
1998LincolnTown Car———DownstreamOE Style
1998MercuryGrand Marquis———DownstreamOE Style
1998MercuryMystique———DownstreamOE Style
1998MercurySable———UpstreamOE Style
1998MercurySable———DownstreamOE Style
1997FordContour———DownstreamOE Style
1997FordCrown Victoria———UpstreamOE Style
1997FordCrown Victoria———DownstreamOE Style
1997FordE-250 Econoline——CNGUpstreamOE Style
1997FordE-350 Econoline——CNGUpstreamOE Style
1997FordE-350 Econoline Club Wagon——CNGUpstreamOE Style
1997FordF-250——CNGUpstreamOE Style
1997FordRanger———UpstreamOE Style
1997FordTaurus———UpstreamOE Style
1997FordTaurus———DownstreamOE Style
1997FordTaurus——GASUpstreamOE Style
1997FordThunderbird———UpstreamOE Style
1997LincolnTown Car———UpstreamOE Style
1997LincolnTown Car———DownstreamOE Style
1997MercuryCougar———UpstreamOE Style
1997MercuryGrand Marquis———UpstreamOE Style
1997MercuryGrand Marquis———DownstreamOE Style
1997MercuryMystique———DownstreamOE Style
1997MercurySable———UpstreamOE Style
1997MercurySable———DownstreamOE Style
1996FordContour———DownstreamOE Style
1996FordCrown Victoria———UpstreamOE Style
1996FordCrown Victoria———DownstreamOE Style
1996FordRanger———UpstreamOE Style
1996FordTaurus———UpstreamOE Style
1996FordTaurus———DownstreamOE Style
1996FordTaurus——GASUpstreamOE Style
1996FordThunderbird———UpstreamOE Style
1996LincolnContinental———UpstreamOE Style
1996LincolnTown Car———UpstreamOE Style
1996LincolnTown Car———DownstreamOE Style
1996MercuryCougar———UpstreamOE Style
1996MercuryGrand Marquis———UpstreamOE Style
1996MercuryGrand Marquis———DownstreamOE Style
1996MercuryMystique———DownstreamOE Style
1996MercurySable———UpstreamOE Style
1996MercurySable———DownstreamOE Style
1995FordCrown Victoria———Upstreamw/ 18" Sensor; OE Style
1995FordRanger———UpstreamOE Style
1995FordTaurus———Upstreamw/ 15" Sensor; OE Style
1995FordTaurus———UpstreamOE Style
1995LincolnContinental———UpstreamOE Style
1995LincolnTown Car———UpstreamOE Style
1995LincolnTown Car———DownstreamOE Style
1995MercuryGrand Marquis———UpstreamOE Style
1995MercurySable———Upstreamw/ 18" Sensor; OE Style
1995MercurySable———UpstreamOE Style
1994FordCrown Victoria———Upstreamw/ 18" Sensor; OE Style
1994FordTaurus———Upstreamw/ 15" Sensor; OE Style
1994FordTempo———UpstreamOE Style
1994LincolnContinental———Upstreamw/ 18" Sensor; OE Style
1994LincolnMark VIII———Upstreamw/ 18" Sensor; OE Style
1994LincolnTown Car———UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1994MercuryGrand Marquis———UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1994MercurySable———Upstreamw/ 18" Sensor; OE Style
1994MercuryTopaz———UpstreamOE Style
1993FordTaurus———Upstreamw/ 15" Sensor; OE Style
1993FordTempo———UpstreamOE Style
1993LincolnContinental———Upstreamw/ 18" Sensor; OE Style
1993LincolnMark VIII———Upstreamw/ 18" Sensor; OE Style
1993MercurySable———Upstreamw/ 18" Sensor; OE Style
1993MercuryTopaz———UpstreamOE Style
1992FordBronco———Upstreamw/ 18" Sensor; OE Style
1992FordF-150———Upstreamw/ 18" Sensor; OE Style
1992FordF-250———UpstreamGVW Under 8,500 Lbs.; w/ 18" Upstream Sensor; OE Style
1992FordTaurus———Upstreamw/ 15" Sensor; OE Style
1992FordTempo———UpstreamOE Style
1992LincolnContinental———Upstreamw/ 18" Sensor; OE Style
1992MercurySable———Upstreamw/ 18" Sensor; OE Style
1992MercuryTopaz———UpstreamOE Style
1991FordBronco———Upstreamw/ 18" Sensor; OE Style
1991FordF-150———Upstreamw/ 18" Sensor; OE Style
1991FordF-250———UpstreamGVW Under 8,500 Lbs.; w/ 18" Upstream Sensor; OE Style
1991FordTaurus———Upstreamw/ 15" Sensor; OE Style
1991MercurySable———Upstreamw/ 18" Sensor; OE Style
1990FordBronco———UpstreamOE Style
1990FordBronco———Upstream4 Lead Sensor; OE Style
1990FordBronco II———Upstream4 Lead Sensor; OE Style
1990FordE-150 Econoline———Upstream4 Lead Sensor; OE Style
1990FordE-150 Econoline———Upstreamw/ 16" Sensor; OE Style
1990FordE-150 Econoline Club Wagon———Upstream4 Lead Sensor; OE Style
1990FordE-150 Econoline Club Wagon———Upstreamw/ 16" Sensor; OE Style
1990FordE-250 Econoline———Upstream4 Lead Sensor; OE Style
1990FordE-250 Econoline———Upstreamw/ 16" Sensor; OE Style
1990FordE-250 Econoline Club Wagon———Upstreamw/ 16" Sensor; OE Style
1990FordE-350 Econoline———Upstreamw/ 16" Sensor; OE Style
1990FordE-350 Econoline Club Wagon———Upstreamw/ 16" Sensor; OE Style
1990FordF-150———UpstreamOE Style
1990FordF-150———Upstream4 Lead Sensor; OE Style
1990FordF-250———UpstreamGVW Under 8,500 Lbs.; OE Style
1990FordF-250———Upstream4 Lead Sensor; OE Style
1990FordMustang———UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1989FordRanger———Upstream4 Lead Sensor; OE Style
Directly replaces or cross-references 104 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 213-1317ACDelco — 213-1408ACDelco — 213-1459BorgWarner — OS122BorgWarner — OS123BorgWarner — OS170BorgWarner — OS176BorgWarner — OS707BorgWarner — OS1478BorgWarner — OS2065BorgWarner — OS2099BorgWarner — OS2171Bosch — 13117Bosch — 15717Bosch — 15719Bosch — 15724Bosch — 15752Delphi — ES20014Delphi — ES20039Delphi — ES20064Ford — 5L8Z9G444AFord — 5L8Z9G444FFord — 5L8Z9G444KFord — 5L8Z9G444LFord — 5M6Z9G444AFord — 5M6Z9G444AAFord — 5W6Z9G444BAFord — AA5Z9G444AFord — F0WZ9F472BFord — F1SZ9F472BFord — F4AZ9F472BFord — F4ZZ9F472BFord — F5MZ9F472BFord — F5MZ9F472DBFord — F5WZ9F472BAFord — F6CZ9G444BAFord — F6DZ9G444BFord — F6DZ9G444EAFord — F8RZ9G444BBFord — F77Z9F472BAFord — FOTZ9F472AFord — XR3Z9G444BBFord — YL8Z9G444ACFord — YL8Z9G444CAFord — YL8Z9G444FAJaguar — XR81557Mazda — AJ0518861BMazda — ZZC018860Mazda — ZZC018861Mazda — ZZC318860Mazda — ZZC418861Mazda — ZZCB18860Mazda — ZZCC18860Mazda — ZZD118860Mazda — ZZTT18861Motorcraft — DY585Motorcraft — DY599Motorcraft — DY601Motorcraft — DY661Motorcraft — DY722Motorcraft — DY744Motorcraft — DY745Motorcraft — DY762Motorcraft — DY764Motorcraft — DY800Motorcraft — DY1013Motorcraft — DY1015Motorcraft — DY1017Motorcraft — DY1034Motorcraft — DY1047Motorcraft — DY1048Motorcraft — DY1052Motorcraft — DY1070Motorcraft — DY1071Motorcraft — DY1072Motorcraft — DY1084Motorcraft — DY1087Motorcraft — DY1089Motorcraft — DY1091Motorcraft — DY1101Motorcraft — DY1110Motorcraft — DY1119Motorcraft — DY1131Motorcraft — DY1132NTK — 22009NTK — 22016NTK — 22071NTK — 22500Standard Ignition — SG144Standard Ignition — SG145Standard Ignition — SG265Standard Ignition — SG725Standard Ignition — SG1266Standard Ignition — SG1338Standard Ignition — SG1800Standard Ignition — SG1801Standard Ignition — SG1802Standard Ignition — SG1803Walker Products — 250-24001Walker Products — 250-24070Walker Products — 250-24127Walker Products — 350-34089Walker Products — 350-34414Walker Products — 350-34602