NTK 24631 Oxygen Sensor - Downstream or Upstream

NTK Direct Fit Oxygen Sensor 24631

NTK Direct Fit Oxygen Sensor 24631 is a heated, threaded oxygen sensor built for specific applications in Honda and Acura vehicles. It is engineered for direct replacement use with OE-style fit, form, and function, helping restore accurate exhaust feedback in the engine management system.

NTK’s Direct Fit Oxygen Sensor line is part of the brand’s focused sensor coverage for import and domestic vehicles. As the sensor specialist within the NGK family, NTK applies ceramic manufacturing expertise and OE application knowledge to deliver sensors that are tested during production for quality and reliability.

Key Features

• Direct Fit Oxygen Sensor for specific vehicle applications
• Heated sensor design for faster operating response
• 4-wire configuration with 12.5 in. wiring harness length
• 18 mm threaded mounting type
• OE-style replacement for downstream and upstream positions
• Part number 24631 for easy catalog matching

Detailed Description

NTK 24631 is designed for direct replacement in select 2003-2011 Honda Element downstream applications, plus 1999-2000 Acura EL upstream and 1999-2000 Honda Civic upstream air/fuel ratio applications. This oxygen sensor supports accurate exhaust monitoring and is built to match original equipment specifications for fit and function. If you are searching for a 2003-2011 Honda Element downstream oxygen sensor or a 1999-2000 Honda Civic upstream oxygen sensor, NTK 24631 is a catalog-matched option. This part cross-references DENSO Auto Parts 234-4733 for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio feedback
• Slow sensor response from a worn heated oxygen sensor
• Emissions test failures tied to sensor degradation
• Rough fuel control caused by inaccurate exhaust readings

Installation Notes and Tips

Verify the sensor position before ordering, since this part is listed for both upstream and downstream locations depending on vehicle application. Confirm the 18 mm threaded mounting style and 4-wire harness layout against the original sensor. For best results, compare the connector and harness length to the removed unit before installation.

Quality Assurance

NTK manufactures oxygen sensors with extensive production testing to help ensure reliability and OE-level performance. The brand’s OE-focused engineering and ceramic manufacturing background support consistent fit and function across covered applications.