NTK 24696 Air / Fuel Ratio Sensor - Upstream
OE Quality 60-Day Returns
NTK
 Direct Fit 4-Wire A/F Sensor

NTK 24696 Air / Fuel Ratio Sensor - Upstream

Brand NTK 24696
Position Upstream
Mounting Bracket Included No
Sensor Type Heated
Thread Diameter 18.000
Thread Length 0.38
Universal Or Specific Fit Specific
Wire Quantity 4
Wiring Harness Length 22.8
Product line Direct Fit 4-Wire A/F Sensor
Fits Subaru and Saab · 31 vehicles

Direct fit replacement. Specific-fit air/fuel ratio sensor for straightforward installation.

Heated sensor. Helps the sensor reach operating temperature quickly.

4-wire design. Provides the connections needed for reliable signal control.

Cross-references Bosch 15169, Bosch 15171 and Bosch 15586 for the same application. See all 17.

$126.15Free shipping
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Order total $126.15
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Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Air / Fuel Ratio Sensor options

NTK Direct Fit Air/Fuel Ratio Sensor

NTK 24696 is a direct-fit heated air/fuel ratio sensor built for specific Subaru and Saab applications. It uses a 4-wire design with OE-style fit, form, and function for accurate upstream exhaust feedback on the vehicles listed below.

Key Features

  • Direct Fit 4-Wire A/F Sensor for specific applications
  • Heated sensor design for faster operating response
  • 18.000 mm thread diameter with 0.38 thread length
  • 22.8 wiring harness length for OE-style routing
  • Specific fitment for upstream Bank 1 Sensor 1 and related positions
  • NTK part number 24696

Product Details

NTK is known for oxygen and air/fuel ratio sensor manufacturing, and the 24696 follows that OE-focused approach with ceramic technology controlled from raw material through finished sensor. The result is a direct replacement built for import and domestic emission-control applications, with manufacturing testing aimed at meeting or exceeding OE specifications. This part cross-references Bosch 15169 and DENSO Auto Parts 234-9122 for the same application. Common vehicle coverage includes Subaru Impreza, Subaru Forester, Subaru Legacy, Subaru Outback, and Saab 9-2X in upstream locations. If you are replacing an upstream air/fuel ratio sensor on a Subaru Impreza or Subaru Forester, NTK 24696 is the OE-style service part to verify against your original sensor.

What It Helps Address

  • Check engine light related to upstream air/fuel ratio sensor faults
  • Incorrect fuel trim readings from a worn sensor
  • Rough idle or hesitation caused by inaccurate exhaust feedback
  • Failed emissions inspection tied to sensor performance
  • Slow sensor response on Subaru and Saab upstream applications

Installation Notes

Confirm the original sensor location before ordering, since fitment includes upstream Bank 1 Sensor 1 and other upstream positions depending on vehicle and emissions package. Match the thread diameter, harness length, and wire count to the removed sensor for proper installation. This part is a specific-fit replacement, so verify year, make, model, and position against the vehicle listing for Subaru Legacy, Subaru Outback, and Saab 9-2X applications.

Quality Assurance

NTK manufactures oxygen sensors with OE application coverage and extensive production testing to support consistent fit and reliable operation. The 24696 is built to OE specifications for direct replacement use in listed Subaru and Saab applications.

Related reading

This part fits 31 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2011SubaruImpreza2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010SubaruForester2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2010SubaruImpreza2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009SubaruForester2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009SubaruImpreza2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009SubaruLegacy2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2009SubaruOutback2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008SubaruForester2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008SubaruImpreza2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008SubaruLegacy2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2008SubaruOutback2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2007SubaruForester2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2007SubaruImpreza2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2007SubaruLegacy2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2007SubaruOutback2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2006Saab9-2X2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2006SubaruForester2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2006SubaruImpreza2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2006SubaruLegacy2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2006SubaruOutback2.5LH4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2005Saab9-2X2.5LH4UpstreamOE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2005SubaruForester2.5LH4UpstreamOE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2005SubaruImpreza2.5LH4UpstreamOE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2005SubaruLegacy2.5LH4UpstreamLocated Before RH Primary (Manifold) Catalyst; B1S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2005SubaruLegacy2.5LH4UpstreamLocated Before LH Primary (Manifold) Catalyst; B2S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2005SubaruOutback2.5LH4UpstreamLocated Before RH Primary (Manifold) Catalyst; B1S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2005SubaruOutback2.5LH4UpstreamLocated Before LH Primary (Manifold) Catalyst; B2S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2004SubaruLegacy2.5LH4UpstreamLocated Before LH Primary (Manifold) Catalyst; B2S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2004SubaruLegacy2.5LH4UpstreamLocated Before RH Primary (Manifold) Catalyst; B1S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2004SubaruOutback2.5LH4UpstreamLocated Before RH Primary (Manifold) Catalyst; B1S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2004SubaruOutback2.5LH4UpstreamLocated Before LH Primary (Manifold) Catalyst; B2S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
Directly replaces or cross-references 17 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 15169Bosch — 15171Bosch — 15586Bosch — 15930Delphi — ES10943DENSO Auto Parts — 234-9122DENSO Auto Parts — 234-9123Quality-Built — 1563675-371875-372075-393475-393522641AA13B22641AA33A22641AA36A22641AA36032010412