Denso
Oxygen Sensor - OE Style

Denso 234-4631 Oxygen Sensor

Brand Denso 234-4631
Position Upstream Right, Upstream, Downstream, and Downstream Right
Wiring Harness Length 30.31
Sensor Type Heated
Universal Or Specific Fit Specific
Wire Quantity 4
Connector Gender Male
Thread Diameter 0.708
Mounting Type Threaded
Product line Oxygen Sensor - OE Style
Fits Dodge and Mitsubishi · 59 vehicles

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

Heated sensor. Helps deliver accurate readings for efficient engine performance.

Aluminum oxide trap layer. Protects the ceramic element from contamination for longer life.

Cross-references ACDelco 213-1603, ACDelco 213-2927 and ACDelco 213-2958 for the same application. See all 40.

$67.28Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $67.28
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Denso OE Style Oxygen Sensor 234-4631

Denso 234-4631 is an OE-style heated oxygen sensor built for specific-fit applications where accurate exhaust feedback matters. It is engineered for direct replacement use on Mitsubishi, Dodge, and related applications, including Mitsubishi Outlander, Eclipse, Galant, Montero, 3000GT, Montero Sport, Diamante, and Dodge Stealth fitments.

Key Features

  • Heated oxygen sensor with a 4-wire design for precise exhaust monitoring
  • Specific-fit construction for direct replacement applications
  • Threaded mounting type with a 0.708 in. thread diameter
  • 30.31 in. wiring harness length for OE-style routing
  • Male connector configuration for factory-style connection
  • OE Style line built to match original equipment fit and function

OE Style Design and Construction

Denso’s OE Style product line focuses on direct-fit replacement parts that mirror original sensor dimensions, connector style, and mounting details. For this oxygen sensor, that means a heated, threaded design intended to restore accurate air-fuel feedback on vehicles such as the Mitsubishi Outlander, Mitsubishi Eclipse, and Mitsubishi Galant. Denso also uses an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable sensor operation and long service life.

This part cross-references Bosch (e.g., 13809, 13818) for the same application.

What This Oxygen Sensor Helps Address

  • Check engine light concerns related to oxygen sensor performance
  • Incorrect exhaust oxygen readings affecting fuel control
  • Rough idle or drivability issues tied to aging sensor response
  • Reduced fuel economy caused by inaccurate air-fuel feedback
  • Failed emissions testing linked to a worn downstream or upstream sensor

Installation Notes and Fitment

Fits 2016-2020 Mitsubishi Outlander, downstream right; 2011-2015 Mitsubishi Outlander, downstream right; 2006-2012 Mitsubishi Eclipse, downstream; 2004-2012 Mitsubishi Galant, downstream; 2007-2010 Mitsubishi Outlander, downstream right; 1997-2000 Mitsubishi Montero, upstream; 1995 Mitsubishi Montero, upstream; 1993-1999 Mitsubishi 3000GT, upstream right; 1997-1998 Mitsubishi Montero Sport, upstream right; 1993-1996 Dodge Stealth, upstream right; 1994-1996 Mitsubishi Montero, upstream; 1995-1996 Mitsubishi Montero, upstream right; 1994-1995 Dodge Stealth, upstream right; 1994-1995 Mitsubishi 3000GT, upstream right; 1995 Mitsubishi Diamante, upstream right; 1994 Mitsubishi Diamante, upstream right.

Verify the sensor position, connector style, and thread size before installation. This Denso 234-4631 oxygen sensor is a specific-fit replacement, so matching the vehicle year, make, model, and sensor location is essential for proper installation.

Quality Assurance

Denso manufactures and tests this OE Style oxygen sensor to strict original-equipment standards for consistent fit and performance. The precision-built design supports first-time fitment on confirmed applications, including Mitsubishi Outlander, Eclipse, and Galant models covered by the fitment data.

This part fits 59 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelTransmissionPositionNotes
2020MitsubishiOutlander——Downstream RightOE; Oxygen Sensor - OE Style
2019MitsubishiOutlander——Downstream RightOE; Oxygen Sensor - OE Style
2018MitsubishiOutlander——Downstream RightOE; Oxygen Sensor - OE Style
2017MitsubishiOutlander——Downstream RightOE; Oxygen Sensor - OE Style
2016MitsubishiOutlander——Downstream RightOE; Oxygen Sensor - OE Style
2015MitsubishiOutlander——Downstream RightOE Style
2014MitsubishiOutlander——Downstream RightOE Style
2013MitsubishiOutlander——Downstream RightOE Style
2012MitsubishiEclipse——DownstreamCylinder 1,2; OE Style
2012MitsubishiGalant——DownstreamCylinder 1,4; OE Style
2012MitsubishiOutlander——Downstream RightOE Style
2011MitsubishiEclipse——DownstreamCylinder 1,2; OE Style
2011MitsubishiGalant——DownstreamCylinder 1,4; OE Style
2011MitsubishiOutlander——Downstream RightOE Style
2010MitsubishiEclipse——DownstreamCylinder 1,2; OE Style
2010MitsubishiGalant——DownstreamCylinder 1,4; OE Style
2010MitsubishiOutlander——Downstream RightLocation After Primary Catalyst; OE Style
2009MitsubishiEclipse——DownstreamCylinder 1,2; OE Style
2009MitsubishiGalant——DownstreamCylinder 1,4; OE Style
2009MitsubishiOutlander——Downstream RightLocation After Primary Catalyst; OE Style
2008MitsubishiEclipse——DownstreamCylinder 1,2; OE Style
2008MitsubishiGalant——DownstreamCylinder 1,4; OE Style
2008MitsubishiOutlander——Downstream RightLocation After Primary Catalyst; OE Style
2007MitsubishiEclipse——DownstreamCylinder 1,2; OE Style
2007MitsubishiGalant——DownstreamCylinder 1,4; OE Style
2007MitsubishiOutlander——Downstream RightLocation After Primary Catalyst; OE Style
2006MitsubishiEclipse——DownstreamCylinder 1,2; OE Style
2006MitsubishiGalant——DownstreamCylinder 1,4; OE Style
2005MitsubishiGalant——DownstreamCylinder 1,4; OE Style
2004MitsubishiGalant——DownstreamCylinder 1,4; OE Style
2000MitsubishiMontero——UpstreamExcluding California.; OE Style
1999Mitsubishi3000GT——Upstream RightOE Style
1999MitsubishiMontero——UpstreamExcluding California.; OE Style
1998Mitsubishi3000GT——Upstream RightOE Style
1998MitsubishiMontero——UpstreamExcluding California.; OE Style
1998MitsubishiMontero Sport——Upstream RightCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1997Mitsubishi3000GT——Upstream RightOE Style
1997MitsubishiMontero——UpstreamExcluding California.; OE Style
1997MitsubishiMontero Sport——Upstream RightCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1996DodgeStealth——Upstream RightOE Style
1996Mitsubishi3000GT——Upstream RightOE Style
1996MitsubishiMontero——UpstreamOE Style
1996MitsubishiMontero——Upstream RightCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1995DodgeStealth——Upstream RightOE Style
1995DodgeStealth——Upstream RightCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1995Mitsubishi3000GT——Upstream RightOE Style
1995Mitsubishi3000GT——Upstream RightCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1995MitsubishiDiamanteLS—Upstream RightOE Style
1995MitsubishiMontero——UpstreamOE Style
1995MitsubishiMontero——Upstream RightCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1995MitsubishiMontero—AutomaticUpstreamExcluding California.; OE Style
1994DodgeStealth——Upstream RightOE Style
1994DodgeStealth——Upstream RightCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1994Mitsubishi3000GT——Upstream RightOE Style
1994Mitsubishi3000GT——Upstream RightCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1994MitsubishiDiamanteLS—Upstream RightCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1994MitsubishiMontero——UpstreamOE Style
1993DodgeStealth——Upstream RightOE Style
1993Mitsubishi3000GT——Upstream RightOE Style
Directly replaces or cross-references 40 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 213-1603ACDelco — 213-2927ACDelco — 213-2958BorgWarner — OS859BorgWarner — OS918BorgWarner — OS920BorgWarner — OS2020Bosch — 13809Bosch — 13818Bosch — 15189Bosch — 15222Bosch — 15580Bosch — 15794Chrysler — MD186992Chrysler — MD305145Delphi — ES20030Delphi — ES20081Mitsubishi — 1588A048Mitsubishi — 1588A123Mitsubishi — 1588A148Mitsubishi — 1588A209Mitsubishi — MD186992Mitsubishi — MD305145Mitsubishi — MD306893Mitsubishi — MD314061Mitsubishi — MD333990Mitsubishi — MN135962Mitsubishi — MN176515NTK — 23518NTK — 24050NTK — 24674Standard Ignition — SG410Standard Ignition — SG558Standard Ignition — SG594Standard Ignition — SG1358Standard Ignition — SG1440Walker Products — 250-24235Walker Products — 250-24236Walker Products — 350-34179Walker Products — 350-34237