NTK
Direct Fit 4-Wire A/F Sensor

NTK 24661 Air / Fuel Ratio Sensor

Brand NTK 24661
Position Upstream, Upstream Left, Upstream Rear, and Upstream Right
Wiring Harness Length 15.8
Sensor Type Heated
Thread Length 0.38
Universal Or Specific Fit Specific
Wire Quantity 4
Thread Diameter 18.000
Mounting Bracket Included No
Product line Direct Fit 4-Wire A/F Sensor
Fits Lexus, Pontiac, Scion, and Toyota · 96 vehicles

Direct fit replacement. Specific fit for easier installation and fewer surprises.

Heated sensor. Helps the sensor reach operating temperature quickly.

4-wire design. Supports reliable air-fuel ratio sensing.

Cross-references BBB Industries 13996, Bosch 15974 and Carlson 15163 for the same application. See all 55.

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Direct Fit A/F Sensor for Toyota and Lexus

NTK 24661 is a direct-fit heated air/fuel ratio sensor built for specific upstream applications on Toyota, Lexus, Scion, Pontiac, and related platforms. It is engineered with a 4-wire layout and OE-style dimensions to support accurate air/fuel monitoring on vehicles such as the Toyota Tacoma, Corolla, and Prius.

Key Features

  • Direct Fit 4-Wire A/F Sensor for specific applications
  • Heated sensor design for faster operating readiness
  • 15.8 in. wiring harness length
  • 18.000 mm thread diameter with 0.38 in. thread length
  • Specific fitment for upstream positions listed in the application data
  • NTK part number 24661 for OE-style replacement matching

Product Details

NTK 24661 is part of the Direct Fit 4-Wire A/F Sensor line, a product line focused on OE-style replacement coverage and application-specific fitment. NTK, part of the NGK family of products, manufactures oxygen and air/fuel sensors with ceramic-based technology and extensive manufacturing controls. The result is a sensor built to match original equipment fit, form, and function for import and domestic vehicles. This part cross-references Bosch 15974 and DENSO Auto Parts 234-9026 for the same application.

Fits 2018-2020 Toyota C-HR, upstream. Fits 2020 Toyota Corolla, upstream. Fits 2016-2020 Toyota Tacoma, upstream right. Fits 2016-2020 Toyota Tacoma, upstream left. Fits 2017-2018 Toyota Corolla iM, upstream. Fits 2016 Scion iM, upstream. Fits 2014-2015 Toyota Tacoma, upstream right. Fits 2014-2015 Toyota Tacoma, upstream left. Fits 2007-2013 Lexus LS460, upstream left. Fits 2008-2012 Lexus IS F, upstream right. Fits 2008-2012 Lexus IS F, upstream left. Fits 2011-2012 Lexus IS250, upstream right. Fits 2012 Lexus IS350, upstream right. Fits 2011 Toyota Prius, upstream. Fits 2010-2011 Toyota Sequoia, upstream right. Fits 2010-2011 Toyota Tundra, upstream right. Fits 2006-2011 Toyota Yaris, upstream. Fits 2005-2010 Pontiac Vibe, upstream. Fits 2005-2010 Toyota Corolla, upstream. Fits 2008-2010 Toyota Highlander, upstream rear. Fits 2005-2010 Toyota Matrix, upstream. Fits 2004-2010 Toyota Prius, upstream. Fits 2008-2009 Scion xD, upstream. Fits 2008 Lexus RX400h, upstream rear. Fits 2001-2003 Toyota Highlander, upstream.

Common Replacement Reasons

  • Check engine light related to air/fuel ratio sensor performance
  • Rough idle or inconsistent fuel trim readings
  • Reduced fuel economy caused by inaccurate sensor feedback
  • Failed emissions inspection tied to upstream sensor faults
  • Sensor response issues on Toyota Tacoma, Corolla, Prius, and Lexus applications

Installation Notes

Verify the connector style, wire count, and sensor position before installation. This NTK 24661 sensor is specific fit, so match the vehicle year, make, model, and upstream location exactly to the application list. Use the listed thread diameter and harness length to confirm clearance and routing before final tightening.

Quality Assurance

NTK manufactures oxygen and air/fuel sensors with OE-focused engineering and extensive production testing to help ensure quality and reliability that meet or exceed original equipment specifications. The brand’s sensor expertise and ceramic manufacturing background support consistent fitment across import applications, including Toyota Tacoma, Corolla, and Lexus platforms.

This part fits 96 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeDrive TypeLitersCylindersFuel TypePositionNotes
2020ToyotaC-HR2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2020ToyotaCorolla1.8LL4GASUpstreamB1S1; Japan Production; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2020ToyotaTacoma3.5LV6Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2020ToyotaTacoma3.5LV6Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2019ToyotaC-HR2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2019ToyotaTacoma3.5LV6Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2019ToyotaTacoma3.5LV6Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2018ToyotaC-HR2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2018ToyotaCorolla iMHatchback1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2018ToyotaTacoma3.5LV6Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2018ToyotaTacoma3.5LV6Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2017ToyotaCorolla iMHatchback1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2017ToyotaTacoma3.5LV6Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2017ToyotaTacoma3.5LV6Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2016ScioniM1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2016ToyotaTacoma3.5LV6Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2016ToyotaTacoma3.5LV6Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2015ToyotaTacoma4.0LV6Upstream RightB1S1; Mexico Spec.; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2015ToyotaTacoma4.0LV6Upstream LeftB2S1; Mexico Spec.; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2014ToyotaTacoma4.0LV6Upstream RightB1S1; Mexico Spec.; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2014ToyotaTacoma4.0LV6Upstream LeftB2S1; Mexico Spec.; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2013LexusLS460RWD4.6LV8Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2013ToyotaTacoma4.0LV6Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2013ToyotaTacoma4.0LV6Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2012LexusIS F5.0LV8Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2012LexusIS F5.0LV8Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2012LexusIS2502.5LV6Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2012LexusIS3503.5LV6Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2012LexusLS460RWD4.6LV8Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2012ToyotaTacoma4.0LV6Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2012ToyotaTacoma4.0LV6Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2011LexusIS F5.0LV8Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2011LexusIS F5.0LV8Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2011LexusIS2502.5LV6Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2011LexusLS460RWD4.6LV8Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2011ToyotaPrius1.8LL4UpstreamB1S1; To 11/2010; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2011ToyotaSequoia5.7LV8Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2011ToyotaTacoma4.0LV6Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2011ToyotaTacoma4.0LV6Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2011ToyotaTundra5.7LV8Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2011ToyotaYaris1.5LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010LexusIS F5.0LV8Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2010LexusIS F5.0LV8Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010LexusLS460RWD4.6LV8Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010PontiacVibe1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010ToyotaCorolla1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010ToyotaHighlander3.3LV6Upstream RearOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010ToyotaMatrix1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010ToyotaPrius1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010ToyotaSequoia5.7LV8Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2010ToyotaTacoma4.0LV6Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010ToyotaTacoma4.0LV6Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2010ToyotaTundra5.7LV8Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2010ToyotaYaris1.5LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009LexusIS F5.0LV8Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2009LexusIS F5.0LV8Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009LexusLS460RWD4.6LV8Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009PontiacVibe1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009ScionxD1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009ToyotaCorolla1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009ToyotaHighlander3.3LV6Upstream RearOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009ToyotaMatrix1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009ToyotaPrius1.5LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009ToyotaTacoma4.0LV6Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009ToyotaTacoma4.0LV6Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2009ToyotaYaris1.5LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008LexusIS F5.0LV8Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2008LexusIS F5.0LV8Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008LexusLS4604.6LV8Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008LexusRX400h3.3LV6Upstream RearOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008PontiacVibe1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008ScionxD1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008ToyotaCorolla1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008ToyotaHighlander3.3LV6Upstream RearOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008ToyotaMatrix1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008ToyotaPrius1.5LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008ToyotaYaris1.5LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2007LexusLS4604.6LV8Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2007PontiacVibe1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2007ToyotaCorolla1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2007ToyotaMatrix1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2007ToyotaPrius1.5LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2007ToyotaYaris1.5LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2006PontiacVibeFWD1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2006ToyotaCorolla1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2006ToyotaMatrixFWD1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2006ToyotaPrius1.5LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2006ToyotaYaris1.5LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2005PontiacVibeFWD1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2005ToyotaCorolla1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2005ToyotaMatrixFWD1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2005ToyotaPrius1.5LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2004ToyotaPrius1.5LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2003ToyotaHighlander2.4LL4UpstreamCyls. 2 & 3; B2S1; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2002ToyotaHighlander2.4LL4UpstreamCyls. 2 & 3; B2S1; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2001ToyotaHighlander2.4LL4UpstreamCyls. 2 & 3; B2S1; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
Directly replaces or cross-references 55 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
BBB Industries — 13996Bosch — 15974Carlson — 15163Delphi — ES10933DENSO Auto Parts — 234-9026DENSO Auto Parts — 234-9048DENSO Auto Parts — 234-9052DENSO Auto Parts — 234-9056DENSO Auto Parts — 234-9058DENSO Auto Parts — 234-9067DENSO Auto Parts — 234-9084DENSO Auto Parts — 234-9100Dorman - HELP — 15767Quality-Built — 15624Quality-Built — 1569075-247275-310775-351875-371275-395275-3991213-2825213-2845213-3546213-4285234-9090894670C03088974015889743838897549189467020208946702040894670404089467040508946704120894670413089467120108946712260894672809089467470108946748030894675001089467500508946752020894675302089467530408946758080OS1749OS2416SG995SG1479SG1583SG1670SG1673SG1753