HomeEmission Control > SensorsNTK 24696 Air / Fuel Ratio Sensor - Upstream
Part #: 24696

NTK 24696 Air / Fuel Ratio Sensor - Upstream

Direct Fit 4-Wire A/F Sensor, Upstream
31 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Direct Fit 4-Wire A/F Sensor, Upstream
Fitment: Subaru and Saab, Impreza, Forester, Legacy, Outback, and 9-2X
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Overview of NTK Direct Fit 4-Wire A/F Sensor 24696

The NTK Direct Fit 4-Wire Air/Fuel Ratio Sensor 24696 is designed for precise emission control in select Saab and Subaru vehicles. This heated sensor ensures accurate air/fuel mixture readings to support optimal engine performance and emissions compliance.

  • Heated sensor type for faster response times
  • Specific fit for Saab 9-2X and Subaru Forester, Impreza, Legacy, Outback models
  • 4-wire configuration for reliable signal transmission
  • 22.8-inch wiring harness length for direct fit installation
  • Thread diameter of 18.0 mm and thread length of 0.38 inches
  • No mounting bracket included

Detailed Product Description

The NTK Direct Fit 4-Wire A/F Sensor 24696 is engineered to provide accurate air/fuel ratio measurements critical for emission control systems. Its heated sensor element allows for quicker activation and stable operation under various engine conditions. The 4-wire design supports precise electrical connections, enhancing sensor reliability. With a wiring harness length of 22.8 inches, this sensor is tailored for direct fit installation without the need for modifications. The thread diameter of 18 mm and thread length of 0.38 inches ensure compatibility with the designated vehicle models. This sensor is a specific fit part, compatible with Saab 9-2X and Subaru models including Forester, Impreza, Legacy, and Outback.

About the Direct Fit 4-Wire A/F Sensor Product Line

The Direct Fit 4-Wire A/F Sensor line by NTK focuses on providing vehicle-specific air/fuel ratio sensors that simplify installation and maintain OEM standards. This product line features heated sensors with a 4-wire configuration designed to deliver accurate and timely data to the engine control unit. The 24696 sensor is part of this line, offering a direct replacement solution for select Saab and Subaru vehicles, ensuring proper fitment and function without additional adapters or modifications.

Common Applications and Issues Addressed

  • Helps resolve engine performance issues related to incorrect air/fuel mixture
  • Supports emission system compliance by providing accurate sensor data
  • Addresses check engine light triggers related to air/fuel ratio sensor faults
  • Improves fuel efficiency by enabling precise fuel delivery adjustments
  • Reduces exhaust emissions by maintaining optimal combustion conditions

Installation Notes and Tips

Installation of the NTK 24696 sensor requires no additional mounting bracket as it is designed for direct fitment. Ensure the wiring harness length of 22.8 inches is sufficient for your vehicle’s sensor location. Use proper torque specifications for the 18 mm thread diameter to avoid damage. It is recommended to inspect the sensor connector and wiring for any signs of wear or corrosion before installation. Follow vehicle-specific service manual instructions for sensor replacement procedures.

Quality Assurance and Warranty

NTK sensors are manufactured to meet strict quality standards for durability and performance. The Direct Fit 4-Wire A/F Sensor 24696 undergoes rigorous testing to ensure reliable operation in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary by region and application.

BrandNTK
Part Number24696
PositionDirect Fit 4-Wire A/F Sensor, Upstream
Mounting Bracket IncludedNo
Sensor TypeHeated
Thread Diameter18.000
Thread Length0.38
Universal Or Specific FitSpecific
Wire Quantity4
Wiring Harness Length22.8

This part fits 31 vehicles. Search below:

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

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

151691517115586156361593022641AA13B22641AA33A22641AA36022641AA36A234-9122234-91233201041275-371875-372075-393475-3935ES10943

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.