Denso 234-9049 Air / Fuel Ratio Sensor - Upstream or Upstream Left
OE Quality 60-Day Returns
Denso
 OE Style

Denso 234-9049 Air / Fuel Ratio Sensor - Upstream or Upstream Left

Brand Denso 234-9049
Position Upstream
Connector Gender Male
Grade Type Regular
Sensor Type Heated
Thread Diameter 0.711
Universal Or Specific Fit Specific
Wire Quantity 4
Wiring Harness Length 20.08
Product line OE Style
Fits Scion, Toyota, and Lexus · 63 vehicles

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

Heated sensor. Engineered for reliable air/fuel ratio monitoring.

Specific fit. Made to match the application exactly.

Cross-references ACDelco 213-2846, BorgWarner OS1727 and BorgWarner OS2207 for the same application. See all 35.

$136.10Free shipping
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Order total $136.10
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Free returns within 60 days if it doesn't fit when fitment is verified.
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Denso OE Style Air/Fuel Ratio Sensor 234-9049

Denso 234-9049 is an OE Style heated air/fuel ratio sensor built for specific-fit replacement on select Toyota, Lexus, and Scion applications. It is engineered for direct replacement use on upstream and upstream left positions, with fitment coverage that includes Toyota Camry, RAV4, Sienna, Avalon, Solara, Highlander, Lexus RX350, RX450h, ES350, and Scion xB and tC.

Key Features

  • OE Style replacement sensor for emission control applications
  • Heated sensor design for faster operating temperature
  • Specific fit for direct application matching
  • 4-wire configuration with male connector
  • 20.08 in. wiring harness length
  • Thread diameter: 0.711
  • Built and tested to OE standards for consistent replacement fit

Product Details

Denso 234-9049 is a heated air/fuel ratio sensor designed for precise upstream feedback in the engine management system. The OE Style construction supports exact replacement fitment, which is important on vehicles such as the Toyota Camry upstream sensor location and Lexus RX350 upstream left applications. This part number, 234-9049, is also cross-referenced in the aftermarket for the same application, including Bosch 13997.

The Denso OE Style line focuses on direct-fit replacement parts that match original equipment dimensions and connector style. For buyers searching for a Toyota RAV4 upstream air/fuel ratio sensor, a Scion tC upstream sensor, or a Lexus ES350 upstream left sensor, this part is built to align with those specific vehicle requirements.

What It Helps Address

  • Check engine light related to air/fuel ratio sensor performance
  • Rough idle caused by inaccurate upstream sensor readings
  • Fuel trim issues from delayed or incorrect exhaust feedback
  • Emissions test failures tied to sensor response problems
  • Driveability concerns on Toyota Camry, RAV4, Sienna, and related models

Installation Notes

Verify the connector style, wire count, and sensor position before installation. This sensor is a specific-fit replacement for upstream and upstream left locations, so matching the exact year, make, model, and build notes is essential. Confirm the vehicle application for Toyota Camry, Toyota RAV4, Lexus RX350, and Scion xB or tC before ordering. Use the listed fitment notes for California, Japan-built, USA-built, and manifold-location applications where applicable.

Quality Assurance

Denso manufactures and tests this sensor to OE standards for replacement accuracy and first-time fit. The OE Style line is intended to deliver the correct part geometry and connector match for the listed applications, supporting dependable installation on confirmed fitment vehicles.

Related reading

This part fits 63 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionFuel TypePositionNotes
2015ScionxB——UpstreamOE Style
2014ScionxB——UpstreamOE Style
2013ScionxB——UpstreamOE Style
2012ScionxB——UpstreamOE Style
2012ToyotaRAV4——Upstream LeftOE Style
2011LexusRX350——Upstream LeftFits Japan built vehicles; OE Style
2011ScionxB——UpstreamOE Style
2011ToyotaCamry——UpstreamOE Style
2011ToyotaRAV4——Upstream LeftOE Style
2010LexusRX350——Upstream LeftUSA Built; From 02/2010; OE Style
2010LexusRX450h——Upstream LeftOE Style
2010SciontC——UpstreamOE Style
2010ScionxB——UpstreamOE Style
2010ToyotaCamry——UpstreamOE Style
2010ToyotaRAV4——Upstream LeftOE Style
2010ToyotaSienna——Upstream LeftOE Style
2009SciontC——UpstreamOE Style
2009ScionxB——UpstreamOE Style
2009ToyotaCamry——UpstreamOE Style
2009ToyotaRAV4——Upstream LeftOE Style
2009ToyotaSienna——Upstream LeftOE Style
2008SciontC——UpstreamOE Style
2008ScionxB——UpstreamOE Style
2008ToyotaCamry——UpstreamOE Style
2008ToyotaRAV4——Upstream LeftOE Style
2008ToyotaRAV4——UpstreamOE Style
2008ToyotaSienna——Upstream LeftOE Style
2008ToyotaSolara——UpstreamOE Style
2007LexusES350——Upstream LeftOE Style
2007LexusRX350——Upstream LeftUSA Built; OE Style
2007SciontC——UpstreamOE Style
2007ToyotaAvalon——Upstream LeftOE Style
2007ToyotaCamry——Upstream LeftOE Style
2007ToyotaCamryManual—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2007ToyotaCamry—ELECTRIC/GASUpstreamOE Style
2007ToyotaCamryAutomatic—UpstreamCalif.; USA Built; OE Style
2007ToyotaCamryAutomatic—UpstreamCalif.; Japan Built; OE Style
2007ToyotaRAV4——Upstream LeftOE Style
2007ToyotaRAV4——UpstreamOE Style
2007ToyotaSienna——Upstream LeftOE Style
2007ToyotaSolara——UpstreamCalif.; From 03/2007; OE Style
2006SciontC——UpstreamOE Style
2006ToyotaAvalon——Upstream LeftOE Style
2006ToyotaCamry——UpstreamLoc. Manifold; Japan Built; OE Style
2006ToyotaCamry——UpstreamLoc. Manifold; USA Built; OE Style
2006ToyotaRAV4——Upstream LeftOE Style
2006ToyotaRAV4——UpstreamOE Style
2006ToyotaSolara——UpstreamOE Style
2005SciontC——UpstreamOE Style
2005ToyotaAvalon——Upstream LeftOE Style
2005ToyotaCamry——UpstreamLoc. Manifold; Japan Built; OE Style
2005ToyotaCamry——UpstreamLoc. Manifold; USA Built; OE Style
2005ToyotaRAV4——UpstreamOE Style
2005ToyotaSolara——UpstreamOE Style
2004ToyotaCamry——UpstreamJapan Built; Loc. Manifold; OE Style
2004ToyotaCamry——UpstreamUSA Built; Loc. Manifold; OE Style
2004ToyotaRAV4——UpstreamOE Style
2004ToyotaSolara——UpstreamOE Style
2003ToyotaCamry——UpstreamLoc. Manifold; Calif.; OE Style
2003ToyotaHighlander——UpstreamCylinder 1,4; OE Style
2003ToyotaRAV4——UpstreamOE; Air / Fuel Ratio Sensor - OE Style
2002ToyotaHighlander——UpstreamCylinder 1,4; OE Style
2001ToyotaHighlander——UpstreamCylinder 1,4; OE Style
Directly replaces or cross-references 35 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 213-2846BorgWarner — OS1727BorgWarner — OS2207BorgWarner — OS2311Bosch — 13997Bosch — 15093Bosch — 15116Bosch — 15486Bosch — 15691Bosch — 15960Delphi — ES10934NTK — 24662NTK — 24837Standard Ignition — SG1374Toyota — 894670E120Toyota — 894670R010Toyota — 8946706030Toyota — 8946706070Toyota — 8946706110Toyota — 8946707010Toyota — 8946708050Toyota — 8946708070Toyota — 8946712070Toyota — 8946728010Toyota — 8946733160Toyota — 8946742040Toyota — 8946742080Toyota — 8946748020Toyota — 8946772010Walker Products — 250-54007Walker Products — 250-54069Walker Products — 250-54107Walker Products — 350-64029Walker Products — 350-64056Walker Products — 350-64081