NTK 24326 Air / Fuel Ratio Sensor - Upstream, Upstream Left or Upstream Right

NTK Direct Fit Air/Fuel Ratio Sensor

NTK 24326 is a direct fit heated air/fuel ratio sensor built for specific applications that require OE-style signal accuracy and factory-style connector compatibility. It is engineered for upstream left, upstream, and upstream right positions across select Ford, Lincoln, Porsche, and Volkswagen vehicles.

The NTK Direct Fit 5-Wire A/F Sensor line is built around application-specific coverage and OE-focused design. As part of NTK’s sensor portfolio, this product line emphasizes proper fit, form, and function for import and domestic vehicles, including 2010-2019 Ford F-150, Transit, Expedition, Fiesta, Lincoln Navigator, Porsche Cayenne, and Volkswagen Beetle/Jetta applications.

Key Features

• Heated air/fuel ratio sensor for faster operating temperature and stable feedback
• Specific-fit design for direct replacement on listed applications
• 5-wire configuration for OE-style signal handling
• 28.5 in. wiring harness length for application-specific routing
• 18 mm thread diameter with 0.38 in. thread length
• No mounting bracket included
• NTK part number 24326 for catalog and service reference

Detailed Description

NTK 24326 is a direct fit 5-wire air/fuel ratio sensor intended for vehicles that use an upstream sensor location to monitor exhaust oxygen content and support fuel control. This sensor is listed for select Ford F-150, Ford Transit-150/250/350/350 HD, Ford Expedition, Lincoln Navigator, Porsche Cayenne, Ford Fiesta, and Volkswagen Beetle and Jetta applications, with fitment covering model years from 2010 through 2019. The OE-style design supports factory-style installation and sensor communication on the specified bank and position.

NTK manufactures oxygen and air/fuel sensors with ceramics expertise and extensive production testing to help maintain consistent quality and reliability. This part cross-references Bosch 17148 and DENSO Auto Parts 234-5019 for the same application.

What This Sensor Helps Address

• Check engine lights related to air/fuel ratio sensor performance
• Rough idle or unstable fuel trim readings caused by a failing upstream sensor
• Delayed closed-loop fuel control after cold start
• Incorrect exhaust feedback affecting drivability and emissions performance
• OE replacement needs for specific Ford, Lincoln, Porsche, and Volkswagen applications

Installation Notes and Tips

Verify the vehicle’s engine, bank, and sensor position before ordering. This part is listed for upstream left, upstream, and upstream right locations depending on application, including Ford F-150 upstream left, Ford Fiesta upstream, and Porsche Cayenne upstream left or upstream right. Confirm connector style, harness routing, and thread specifications against the original sensor before installation. Use proper sensor removal tools and follow the manufacturer service procedure to avoid damaging the exhaust bung or wiring.

Quality Assurance

NTK states that its oxygen and air/fuel sensors are extensively tested during manufacturing to help meet or exceed OE specifications. The brand’s OE-focused engineering and application coverage are intended to support reliable replacement performance on the listed vehicles.