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.

$122.93Free shipping
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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-HR——2.0LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2020ToyotaCorolla——1.8LL4GASUpstreamB1S1; Japan Production; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2020ToyotaTacoma——3.5LV6—Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2020ToyotaTacoma——3.5LV6—Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2019ToyotaC-HR——2.0LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2019ToyotaTacoma——3.5LV6—Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2019ToyotaTacoma——3.5LV6—Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2018ToyotaC-HR——2.0LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2018ToyotaCorolla iMHatchback—1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2018ToyotaTacoma——3.5LV6—Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2018ToyotaTacoma——3.5LV6—Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2017ToyotaCorolla iMHatchback—1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2017ToyotaTacoma——3.5LV6—Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2017ToyotaTacoma——3.5LV6—Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2016ScioniM——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2016ToyotaTacoma——3.5LV6—Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2016ToyotaTacoma——3.5LV6—Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2015ToyotaTacoma——4.0LV6—Upstream RightB1S1; Mexico Spec.; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2015ToyotaTacoma——4.0LV6—Upstream LeftB2S1; Mexico Spec.; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2014ToyotaTacoma——4.0LV6—Upstream RightB1S1; Mexico Spec.; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2014ToyotaTacoma——4.0LV6—Upstream LeftB2S1; Mexico Spec.; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2013LexusLS460—RWD4.6LV8—Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2013ToyotaTacoma——4.0LV6—Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2013ToyotaTacoma——4.0LV6—Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2012LexusIS F——5.0LV8—Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2012LexusIS F——5.0LV8—Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2012LexusIS250——2.5LV6—Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2012LexusIS350——3.5LV6—Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2012LexusLS460—RWD4.6LV8—Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2012ToyotaTacoma——4.0LV6—Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2012ToyotaTacoma——4.0LV6—Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2011LexusIS F——5.0LV8—Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2011LexusIS F——5.0LV8—Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2011LexusIS250——2.5LV6—Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2011LexusLS460—RWD4.6LV8—Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2011ToyotaPrius——1.8LL4—UpstreamB1S1; To 11/2010; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2011ToyotaSequoia——5.7LV8—Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2011ToyotaTacoma——4.0LV6—Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2011ToyotaTacoma——4.0LV6—Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2011ToyotaTundra——5.7LV8—Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2011ToyotaYaris——1.5LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010LexusIS F——5.0LV8—Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2010LexusIS F——5.0LV8—Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010LexusLS460—RWD4.6LV8—Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010PontiacVibe——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010ToyotaCorolla——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010ToyotaHighlander——3.3LV6—Upstream RearOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010ToyotaMatrix——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010ToyotaPrius——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010ToyotaSequoia——5.7LV8—Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2010ToyotaTacoma——4.0LV6—Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010ToyotaTacoma——4.0LV6—Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2010ToyotaTundra——5.7LV8—Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2010ToyotaYaris——1.5LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009LexusIS F——5.0LV8—Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2009LexusIS F——5.0LV8—Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009LexusLS460—RWD4.6LV8—Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009PontiacVibe——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009ScionxD——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009ToyotaCorolla——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009ToyotaHighlander——3.3LV6—Upstream RearOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009ToyotaMatrix——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009ToyotaPrius——1.5LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009ToyotaTacoma——4.0LV6—Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009ToyotaTacoma——4.0LV6—Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2009ToyotaYaris——1.5LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008LexusIS F——5.0LV8—Upstream RightCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor
2008LexusIS F——5.0LV8—Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008LexusLS460——4.6LV8—Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008LexusRX400h——3.3LV6—Upstream RearOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008PontiacVibe——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008ScionxD——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008ToyotaCorolla——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008ToyotaHighlander——3.3LV6—Upstream RearOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008ToyotaMatrix——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008ToyotaPrius——1.5LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008ToyotaYaris——1.5LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2007LexusLS460——4.6LV8—Upstream LeftOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2007PontiacVibe——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2007ToyotaCorolla——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2007ToyotaMatrix——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2007ToyotaPrius——1.5LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2007ToyotaYaris——1.5LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2006PontiacVibe—FWD1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2006ToyotaCorolla——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2006ToyotaMatrix—FWD1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2006ToyotaPrius——1.5LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2006ToyotaYaris——1.5LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2005PontiacVibe—FWD1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2005ToyotaCorolla——1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2005ToyotaMatrix—FWD1.8LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2005ToyotaPrius——1.5LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2004ToyotaPrius——1.5LL4—UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2003ToyotaHighlander——2.4LL4—UpstreamCyls. 2 & 3; B2S1; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2002ToyotaHighlander——2.4LL4—UpstreamCyls. 2 & 3; B2S1; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2001ToyotaHighlander——2.4LL4—UpstreamCyls. 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